Patent ID: 12214307

DETAILED DESCRIPTION

Herein, example filter assemblies, filter cartridges, features and components therefor are described and depicted. A variety of specific features and components are characterized in detail. Many can be applied to provide advantage. There is no specific requirement that the various individual features and components be applied in an overall assembly with all of the features and characteristics described, however, in order to provide for some benefit in accord with the present disclosure.

It is noted that a plurality of embodiments are depicted and described. The embodiments are not meant to be exclusive with respect to features depicted. That is, selected features of one embodiment can be applied in one or more of the other embodiments if desired, to advantage. In many examples, the filter assembly depicted is an air cleaner assembly, for example, used to filter intake air for an internal combustion engine. Additional applications are possible, for example, applications in which the filter assembly is a crankcase ventilation filter assembly, in which the filter cartridge is used to filter crankcase blowby gases which include, typically, both particulate and liquid contaminant therein. Both type of filter assemblies are generally “gas filter assemblies,” since the carrier stage being filtered is gas (air or crankcase ventilation gases). While the techniques described herein will typically be used in application for gas filtration, they can be used in the filtration of other materials, for example, liquids, if desired.

Air Cleaner General Construction

Referring toFIGS.1-9, aspects of an air cleaner10in accordance with an embodiment of the invention are presented. As shown, the air cleaner10includes a housing assembly12including a main housing body20defining within which a removable filter cartridge100is disposed. The air cleaner10includes a housing assembly12with a housing body20defining an interior region20awithin which a primary removable filter cartridge100is disposed. The housing assembly12further includes an outlet assembly40that is positioned for exit of filtered air. In the embodiment presented, the air outlet assembly40defines an interior region40awithin which a secondary removable filter cartridge200is disposed. The outlet assembly40can be made separately from the housing body20and attached thereto, or it can be integrally constructed as a portion of the housing body20. The housing assembly12further includes an inlet assembly50through which air to be filtered enters the assembly10. The inlet assembly50can be made separately from the housing body20and attached thereto, or it can be integrally constructed as a portion of the housing20. In the embodiment disclosed, and as explained in detail later in this section, the housing assembly12is modular in configuration in which the outlet and inlet assemblies40,50are separate assemblies secured to the housing body20.

The air cleaner10can include an access cover125to provide access to the interior region20aof the housing body20, such as for placement and removal of filter cartridges100,200. The access cover125may be a separate component or may be an integral feature of another component of the air filter cartridge100, for example integral with the circumferential shell of the filter cartridge100. In the embodiment disclosed herein, the access cover125is integral to the air filter cartridge100. In one aspect of the disclosure, the access cover125, and thus the filter cartridge100, are secured to the housing body20via a pair of connectors or lock mechanisms90.

In one aspect, the air filter cartridge100can be configured such that it has an axis of symmetry about a plane passing through the longitudinal axis of the air filter cartridge100. Such a configuration can allow for the air filter cartridge100to be installed in either direction while still interacting in a satisfactory way with the mating parts of the housing body20and lock mechanisms90.

Housing Body20

Referring toFIGS.10-13, the housing body20is shown in isolation. As presented, the housing body20is unitarily formed as a single component from a polymeric material, such as nylon, polypropylene, or ABS plastic. In one aspect, the housing body20extends between a first end20aand a second end20band defines and interior region20i. The housing body20can be characterized as having a central portion22, an inlet portion24, and an outlet portion26. Although the terms “inlet portion” and “outlet portion” are used herein, it should be understood that, because of the configuration of the housing body20, the inlet portion24can serve as the outlet end of the housing body20and the outlet portion26can serve as the inlet portion of the housing body20. In general, the central portion22retains the filter cartridge100, the inlet portion24secures the air inlet assembly50to the housing body20and also supports one of the lock mechanisms90, and the outlet portion26secures the air outlet assembly40to the housing body20and also supports the other lock mechanism90.

In one aspect, the central portion22of the housing body20is defined by a sidewall22aextending between a first end wall22bproximate the inlet portion24and a second end wall22cproximate the outlet portion26. Each of the first and second end walls22b,22crespectively define openings22d,22ethrough which air can flow through the housing body20. The central portion22further defines an access opening22fthrough which the filter cartridge100can be installed. The access opening22fis also sized such that the outlet assembly40and the inlet assembly50can be inserted through the access opening22fduring assembly of the housing assembly12. In one aspect, the access opening22fis provided with a grooved structure defining an open channel22gfor receiving a seal member, such as an O-ring, such that access cover125can be adequately sealed against the housing body20. Referring toFIGS.106and107, an alternative air cleaner design is shown in which the access opening22fhas a varying profile with a transversely or radially recessed portion22f1that can be used to enhance positive location of the filter cartridge100during insertion.

The inlet portion24of the housing body20is shown as being provided with a circumferential sidewall24awith a rectangular shape with rounded ends or corners (e.g. a race track shape). Within the sidewall24a, a plurality of oppositely arranged and spaced apart apertures24bare provided. The apertures24bare for receiving cooperatively shaped latch members of the air inlet assembly50to facilitate a snap-fit type connection between the housing body20and the air inlet assembly50. The inlet portion24is also provided with a mounting structure24cproximate the access opening22f. The mounting structure24cprovides a structure to which the lock mechanism90can be mounted. As shown, the mounting structure24cis defined by a pair of spaced apart, parallel L-shaped channel or rib members24dextending in a lengthwise direction of the housing body20. The inlet portion24is further provided with a cut-out portion24ewithin the sidewall24ato facilitate mounting of a dust ejector in a desired location and orientation, as is explained later in this section.

The outlet portion26of the housing body20is shown as being provided with a circumferential sidewall26awith a rectangular shape with rounded ends or corners (e.g. a race track shape). Within the sidewall26a, a plurality of oppositely arranged and spaced apart apertures26bare provided. The apertures26bare for receiving cooperatively shaped latch members of the air outlet assembly40to facilitate a snap-fit type connection between the housing body20and the air outlet assembly40. The outlet portion26is also provided with a mounting structure26cproximate the access opening22f. The mounting structure26cprovides a structure to which the lock mechanism90can be mounted. As shown, the mounting structure26cis defined by a pair of spaced apart, parallel L-shaped channel or rib members26dextending in a lengthwise direction of the housing body20. Although not shown, the outlet portion26can be further provided with a cut-out portion similar to24ewithin the sidewall26ato facilitate mounting of a dust ejector in a desired location and orientation where the air cleaner is configured for air to flow from the portion26to the portion24.

Outlet Assembly40

Referring toFIGS.14to18, the outlet assembly40, is shown in further detail. For the purpose of clarity, the filter cartridge200is not shown as being installed within the outlet assembly atFIGS.14to18. As presented, the outlet assembly40includes an outlet body42and flow restriction indicator44. The flow restriction indicator44is a dial-type gauge that snap-fits into the outlet assembly40. As shown, the outlet body42is defined by a sidewall42aextending between a first end42band a second end42c. In one aspect, the sidewall42aincludes a contoured portion42dfor receiving and sealing with a portion of a seal member204associated with the secondary filter cartridge200. The interior of the sidewall42aforms the remaining portion of the seal interface with the secondary filter cartridge seal member204. The sidewall42ais also shown as being provided with latch portions42e, each of which having a ramped surface42fand a shoulder surface42g. The latch portions42einteract with the apertures26bin the housing body20such that a snap-fit connection can be formed between the housing assembly20and the outlet assembly40.

The outlet assembly40is also shown as being provided with a flange structure46adjoining the first end42bof the outlet body sidewall42a. In one aspect, the flange structure46is defined by a first flange portion46aand a second flange portion46cthat each extending radially outwardly from the sidewall42a. In one aspect, the flange portions46a,46cdefine a mounting surface46bon one side of the flange structure46and a sealing surface46con an opposite side of the flange structure46.

In the embodiment shown, the sealing surface46cof the first flange portion46ais disposed at an angle a1 to a longitudinal axis X of the air cleaner10and outlet assembly40. In one aspect, the angle a1 is an oblique or non-orthogonal angle. In the example shown, the angle a1 is 95 degrees. However, other angles are possible, such as angles ranging between 90 and 135 degrees, for example 100 degrees. In some examples, the angle a1 is minimized such that the surface area of the sidewall42abetween the flange portions46a,46cis similarly minimized such that debris falling into the interior region20iis less able to collect on the resulting ledge area of the sidewall42a, for example when the filter cartridge100is being removed. In one aspect, the first and second flange portions46a,46care disposed at an angle a2 with respect to each other. In the example shown, the angle a2 is greater than zero and less than 180 degrees such that the first and second flange portions46a,46care disposed in a non-parallel relationship. In the example shown, the angel a2 is about 152 degrees. Where the outlet end of the media pack110is orthogonal to the longitudinal axis X, the angles a1 and a2 can also be said to be at an oblique angle to the outlet end114. As the seal surfaces132b,132cof the seal member132can be defined by the angles a1, a2 of the flange portions46a,46c, the seal surfaces132b,132ccan likewise have the angles specified above. Other angles are possible.

When the outlet assembly40is inserted through the housing body access opening22fsuch that the outlet assembly40resides within the interior region20iof the housing body20, the outlet assembly40can be pushed forward towards the housing body outlet portion26(or inlet portion24) until the mounting surface46babuts the end wall22cof the housing body20. This position is most easily seen in the cross-sectional views ofFIGS.6A and6B. The end wall22cprovides a positive stop against the mounting surface46bof the first flange portion46a. During this action, the ramped surface42fof each of the latch portions42eride along the interior surface of the sidewall26auntil the outlet body42is sufficiently inserted for the latch portions42eto be fully received into the apertures26b. At this point, the shoulder surfaces42gof the latch portions42elock against an edge of the apertures26bin a snap-fit type of connection, wherein the outlet housing42is locked from further movement by the latch portions42eand the end wall22c.

In one aspect, the second flange portion46cadjoins the first flange portion46ato form the seal surface46dopposite the mounting surface46b. The seal surface46dprovides a surface against which a correspondingly shaped seal member of the filter cartridge100can form a seal. As the first flange portion46aand second flange portion46care arranged in a non-parallel relationship, the portion46eof the seal surface46ddefined by the first flange portion46ais disposed at the angle a2 to the portion46fof the seal surface46ddefined by the second flange portion46c. Accordingly, the seal surface46dcan be said to have a compound shape or profile. At the location46gof the seal surface46dwhere the first and second seal portions46e,46fadjoin, the seal surface46dis curved such that a smooth transition exists. Stated another way, the first and second seal portions46e,46fare planar with a curved portion46gconnecting the portions46e,46f. In some examples, all or part of the seal surface46dis curved rather than being planar. For example, either or both of the first and second seal portions46e,46fcan be curved rather than being planar. In the example shown, the first seal portion46erepresents less than half of the total seal surface46d, and thus has a lesser length than that of the second seal portion46f.

The outlet assembly40is also provided with an outlet end48defined by an end wall48aand an outlet tube48bto which a hose or duct can be connected. The outlet end48is also shown as including internal sidewalls or ribs48cfor interacting with the filter cartridge200. The outlet end48is further shown as also including a sidewall or well48dfor receiving the restriction indicator44.

One advantage of the presented configuration, due to the disclosed modular design, is that differently configured outlet assemblies40can be mounted onto the housing body20to suit any particular application. For example, the outlet assembly could be provided with a differently sized or shaped outlet tube or duct, could be provided without a restriction indicator, or could be provided with additional ports for the installation of electronic sensors. Accordingly, the disclosure is not necessarily limited to the specific outlet assembly configuration described herein as other or different features may be included.

Inlet Assembly50

Referring toFIGS.19-31, aspects of the inlet assembly50are shown in greater detail. As presented, the inlet assembly50includes an inlet body52, a precleaner assembly60, and a dust ejection assembly66. In one aspect, the precleaner assembly60generally is used to clean selected material or contaminants carried by an air stream into the air cleaner assembly10before the air reaches the filter cartridge100positioned therein. The precleaner60generally includes a sidewall62abounding an end wall62bthrough which a plurality of cyclonic separator tubes64extend. In the embodiment shown in the drawings,42separator tubes64are provided. More or fewer separator tubes64can be provided.

The inlet body52is also shown as including a sidewall52abounding an end wall52b. A plurality of receptacles54are shown as being provided on and extending through the end wall52b. The receptacles54are received into the outlets of the separator tubes64when the precleaner assembly60is installed into the inlet body52, wherein the sidewall62aslides within the sidewall52a. In the example presented, the precleaner assembly60can be secured via a fastener62c(e.g. a threaded screw or bolt) extending into a threaded opening52cin the end wall52bof the inlet body52.

In operation, contaminants are separated to the outside walls of the separator tubes64and are collected within the interior space defined between end walls62b,52band the sidewall52aand are then ejected out of the dust ejection port assembly66. The relatively contaminant free air passing through the central portions of the separator tubes64is received by the receptacles54where the air can pass through the end wall52band into the interior region20iwhere the air can be received by the filter cartridge100for further cleaning.

As can be most easily seen atFIGS.19and23-21, the dust ejection assembly including a dust ejection port67mounted through an opening in the inlet body sidewall52aand a retaining clip68securing the dust ejection port67to the sidewall52a. As opposed to typical prior art assemblies in which the dust ejection port is molded into the precleaner assembly or part of the air cleaner housing, the dust ejection assembly66disclosed herein is removable and can be mounted in multiple locations, where the air cleaner10is provided with multiple openings52d. The inlet assembly50is installed through the access opening22fof the housing body20in a manner similar to that already described for the inlet assembly40. The removability of the dust ejection assembly66facilitates this assembly process, as insufficient clearance would result if the dust ejection port67were non-removable and assembly through the access opening22fwere attempted. Once the inlet assembly50is installed onto the main body20, the dust ejection port67can be inserted into the opening52din the inlet body52.

With reference toFIGS.26-31, the dust ejection port67is defined by a tubular sidewall67athat extends to a flange67b. During insertion of the dust ejection port67into the inlet body opening52din a direction from the outside of the sidewall52atowards the interior defined by the sidewall52a, the flange67bacts as a stop to prevent further insertion into the interior. In one aspect, the flange67bis provided with a complementary shape to the profile of the sidewall52asuch that a generally flush fit arrangement between the flange67band the sidewall52aexists. In the example shown, both the sidewall52a, at the location of opening52d, and the flange67bare curved. However, where the mounting location of the dust ejection assembly66is along a flat side of the inlet body sidewall52a, the flange67bcan be planar or flat.

The dust ejection port67is further provided with a pair of retaining flanges or ears67cthat pass through the inlet body opening52dwhen the flange67bis abutted with the sidewall52a. The retaining flanges67bare received by the retaining clip68which includes a sidewall68adefining an opening68bwith a narrowed opening area68cfor receiving a narrowed neck region of the tubular sidewall67abetween the flanges67b,67cof the dust ejection port67. The narrowed opening area68cenables for a snap-fit type attachment between the dust ejection port67and the retaining clip68. Once the dust ejection port sidewall67ais inserted through the opening52d, the retaining clip68is inserted onto the ejection port sidewall67aon the side of the inlet body sidewall52aopposite of the flange67b(i.e. on the interior side of sidewall52a). Once inserted, the retaining clip68operates against the retaining flanges67bto prevent the dust ejection port67from being removed from the inlet body52. As indicated atFIGS.28, the clip68has a width w1 at the distal end of the clip which increases to a width w2 towards the opposite end of the clip68to form a ramp-like structure. Thus, as the retaining clip68is inserted, the increasing thickness of the clip68acts to bind the ejection port67in place such that the ejection port67is axially secured in place with respect to the sidewall52a. A handle or lip member68dis provided on the retaining clip68to facilitate manipulation of the retaining clip during insertion and removal.

Ramped sidewall members or ribs68ecan also be provided to interact with the ends of the retaining flanges67cto prevent rotation of the ejection port67with respect to the sidewall52a. Preventing rotation is advantageous as loosening of the connection between the retaining clip68and the ejection port67could occur with such rotation.

In one aspect, the retaining clip sidewall68ais provided with a complementary shape to the profile of the sidewall52asuch that a generally flush fit arrangement between the sidewall68aand the sidewall52aexists. In the example shown, both the sidewall52a, at the location of opening52d, and the sidewall68aare curved. However, where the mounting location of the dust ejection assembly66is along a flat side of the inlet body sidewall52a, the sidewall68acan be planar or flat.

The sidewall52aof the inlet body52is also shown as being provided with latch portions52e, each of which having a ramped surface52fand a shoulder surface52g. The latch portions52einteract with the apertures24bin the housing body20such that a snap-fit connection can be formed between the housing assembly20and the inlet assembly50.

The inlet assembly50is also shown as being provided with a flange structure56adjoining the second end42cof the outlet body sidewall42a. In one aspect, the flange structure56is defined by a first flange portion56aand a second flange portion56cthat extend radially outwardly from the sidewall52a. In one aspect, the flange portions56a,56cdefine a mounting surface56bon one side of the flange structure56and a sealing surface56con the opposite side of the flange structure56.

In the embodiment shown, the first flange portion56ais disposed at an angle a3 to a longitudinal axis X of the air cleaner10and inlet assembly50. In one aspect, the angle a3 is an oblique or non-orthogonal angle. In the example shown, the angle a1 is 5 degrees. However, other angles are possible, such as angles ranging between 0 and 45 degrees, for example 10 degrees. In one aspect, the first and second flange portions56a,56care disposed at an angle a4 with respect to each other. In the example shown, the angle a4 is greater than zero and less than 180 degrees such that the first and second flange portions56a,56care disposed in a non-parallel relationship. In the example shown, the angel a4 is about 152 degrees. Other angles are possible.

When the outlet assembly40is inserted through the housing body access opening22fsuch that the inlet assembly50resides within the interior region20iof the housing body20, the inlet assembly50can be pushed forward towards the housing body inlet portion24(or inlet portion) until the mounting surface56babuts the end wall22bof the housing body20. This position is most easily seen in the cross-sectional views ofFIGS.8and8A. The end wall22bprovides a positive stop against the mounting surface56bof the first flange portion56a. During this action, the ramped surface52fof each of the latch portions52eride along the interior surface of the sidewall24auntil the inlet body52is sufficiently inserted for the latch portions52eto be fully received into the apertures24b. At this point, the shoulder surfaces52gof the latch portions52elock against an edge of the apertures24bin a snap-fit type of connection, wherein the inlet housing52is locked from further movement by the latch portions52eand the end wall22b.

In one aspect, the flange structure56adjoins the first flange portion56ato form the seal surface56dopposite the mounting surface56b. The seal surface56dprovides an axial surface against which a correspondingly shaped seal member of the filter cartridge100can form a seal. Accordingly, the seal surfaces of the seal members can have the same shape or profile as explained below for the seal surfaces herein. As the first flange portion56aand second flange portion56care arranged in a non-parallel relationship, the portion56eof the seal surface46ddefined by the first flange portion56ais disposed at the angle a4 to the portion56fof the seal surface56ddefined by the second flange portion56c. Accordingly, the seal surface56dcan be said to have a compound shape or profile. At the location56gof the seal surface56dwhere the first and second seal portions56e,56fadjoin, the seal surface56dis curved such that a smooth transition exists. Stated another way, the first and second seal portions56e,56fare planar with a curved portion56gconnecting the portions56e,56f. In some examples, all or part of the seal surface56dis curved rather than being planar. For example, either or both of the first and second seal portions56e,56fcan be curved rather than being planar. In the example shown, the first seal portion56erepresents less than half of the total seal surface56d, and thus has a lesser length than that of the second seal portion56f.

One advantage of the presented configuration, due to the disclosed modular design, is that differently configured inlet assemblies50can be mounted onto the housing body20to suit any particular application. For example, an inlet assembly50with no precleaner, an inlet duct, a different precleaner design, and/or dust ejection assembly could be provided. Accordingly, the disclosure is not necessarily limited to the specific inlet assembly configuration described herein as other or different features may be included.

Filter Cartridge100

Referring now toFIGS.60-69, an exemplary embodiment of filter cartridge100of air cleaner assembly10is illustrated. The filter cartridge100extends between a first end102and a second end104. In one aspect, the first end102can be characterized as the upstream end of the filter cartridge100while the second end104can be characterized as the downstream end of the filter cartridge100. The filter cartridge100can be considered to be the main or primary filter cartridge, and is used to selectively separate a desired amount of particulate or containment material.

Filter cartridge100is generally a service part or removable component, such that it is periodically removable and replaceable as desired or necessary during the lifetime of the air cleaner10. In particular, when the cartridge100becomes occluded or otherwise needs to be replaced, the access cover125is unlocked from the housing20, and the occluded filter100is removed by pulling the access cover in a direction R1away from the housing20via a handle127associated with the access cover125. After such removal, another filter100can be placed in the housing20by inserting the filter cartridge100in an insertion direction I1. In one aspect, the directions I1and R1are orthogonal to the longitudinal axes X, X1of the filter cartridge100and housing20. In the example shown, the access cover125is integral to the filter cartridge100and thus serves as the previously described access cover125. Similarly, the handle127is integrally formed with the access cover125. In one aspect, the handle127has a length that is a majority of the length of the media pack110. As mentioned previously,FIGS.106and107show the filter cartridge100that the access opening22fcan have a varying profile with a recessed portion22f1. In such an embodiment, the access cover125can be formed with a complementary shape to the access opening22fsuch that the access cover125has a contoured shape with a protruding portion125athat mates or abuts with the recessed portion22f1

The filter cartridge100generally includes a media pack110, a shell120integrally including the access cover125and the handle127, a first sealing member130at the inlet end of the media pack110, and a second sealing member132at the outlet end of the media pack110. The sealing members130,132will generally be made of a relatively flexible material and may be referred to herein as a “flexible sealing member,” and can include an axial or radial sealing member. In one example, the sealing members130,132are provided as injection molded gaskets. In the embodiment shown, the sealing members130,132are provided as gaskets with alternating segments of parallel lip seals134and open-faced pocket structures136, as is described later in this section. The seal members130,132are shown in isolation atFIGS.75-77.

In the example shown, the media pack110has inlet flow face112for receiving unfiltered air or pre-cleaned air from the precleaner (if provided) and an outlet flow face114for delivering filtered air. The media pack110is shown in isolation atFIG.70. In the example shown, the media pack110has an obround cross-sectional shape. However, other shapes are possible, such as round, oval, and rectangular cross-sectional shapes. In one aspect, the media pack110defines an outer perimeter116extending between the inlet and outlet flow faces112,114. In the example shown, the media pack110is formed from a coiled media construction, for example a media construction having a fluted (typically corrugated) media sheet and a facing media sheet that together define parallel flutes to form a fluted or z-filter media construction. Suitable media constructions for the media pack110are discussed in more detail in the Media Types and Configurations section.

In one aspect, the shell120of the filter cartridge100is formed from a polymeric material, such as nylon, polypropylene, or ABS plastic. The shell120is shown in isolation atFIGS.66-69. In one aspect, the shell120defines a perimeter wall122that surrounds the outer perimeter116of the media pack110. A grid structure123is also shown as being provided with the shell120for supporting the outlet flow face114of the media pack110. The shell120may be secured to the media pack110by an adhesive. The perimeter wall122may surround the entirety of the media pack outer perimeter116, as shown, or surround a portion of the media pack outer perimeter116. As noted previously, the access cover125and handle127are integrally formed with the shell. As shown, the access cover125includes a main body125athat is sized and shaped to mate against and cover the access opening22fof the housing body20. The main body125adefines a sealing surface125bagainst which a seal associated with the housing body20can form a seal. In the example shown, the handle127is formed with the access cover125such that an open space127aexists between the handle127and the cover125to allow an operator to grasp the handle127. The open space127acan be defined as a recess beneath one or both sides of the handle127or can be a completely open space, as shown in the drawings. In the example shown, the access cover125can be provided with indicia125c, such as text and directional arrows, to provide an indication to an operator as to the proper installation orientation of the filter cartridge100.

In one aspect, first and second seal support flanges124,126extend orthogonally from the perimeter wall122. The seal support flanges124,126respectively provide a support surface for the seal members130,132. The seal support flanges124,126, and thus the supported seal members130,132, are respectively provided with profiles complementary to the sealing outlet assembly sealing surface46dand the inlet assembly sealing surface56d. Accordingly, the seal support flange124defines a support surface124ahaving a first portion124bdisposed at angle a4 and an adjoining second portion124c, wherein the first and second portions124b,124cform the angle a4 between them. The shape of the support flange124imparts similar features onto the seal member130such that a seal surface130aof the seal member130has a first portion130bat the angle a3 and an adjoining second portion130cat the angle a4 with respect to the first portion130b. In the example shown, the media pack inlet flow face112is shown as being orthogonal to the longitudinal axis X1of the filter cartridge100. Accordingly, the support flange first portion124aand the seal first portion130bcan be said to form an angle a5 with the plane P1defining the inlet flow face that is equal to the angle a3 minus 90 degrees. As such, the angle a5 in the example shown is 10 degrees.

The seal support flange126defines a support surface126ahaving a first portion126bdisposed at the angle a1 and an adjoining second portion124cdisposed at the angle a2 with respect to the first portion126b. The shape of the support flange126imparts similar features onto the seal member132such that a seal surface132aof the seal member132has a first portion132bat the angle a1 and an adjoining second portion132cat the angle a2 with respect to the first portion132b. In the example shown, the media pack outlet flow face114is shown as being orthogonal to the longitudinal axis X1of the filter cartridge100. Accordingly, the support flange first portion126aand the seal first portion132bcan be said to form an angle a6 with the plane P2defining the inlet flow face that is equal to the angle a1 minus 90 degrees. As such, the angle a6 in the example shown is 10 degrees. In one aspect, the seal surfaces130a,132acan be characterized as defining axial seal surfaces or axially facing seal surfaces as the face of the seal surface is more orthogonal than not to the longitudinal axis X1(i.e. more parallel than not to the end faces of the media pack110or facing in the same general direction as the media pack end) of the filter cartridge100.

The seal members130,132can be provided with various features to enhance sealing. The seal members130,132are shown in isolation atFIGS.61A-61C, respectively. With reference toFIG.61Ba cross-sectional view of the seal members130,132is presented. In one aspect, the seal members130,132are injection molded seals. As presented, the seal members130,132include a base member133aand a pair of seal lips or extensions133b,133cthat together form a c-channel type shape. The base member133aand the side133dof the lip extension133binterfaces with the seal support flanges124,126and can be secured to the flanges124,126via an adhesive. The seal members130,132can also include a top segment133ewherein the c-shaped channel is oriented 90 degrees to the remainder of the seal member130,132. At top segment133e, the open side of the channel faces in the same direction as the lip extension133cof the remaining segment of the seal member130,132. This configuration allows for the seal members130,132to be more easily molded onto the inlet and outlet housing assemblies40,50. At the location of the top segment133e, the distal ends of each of the lip extensions133b,133cform the axial seal surface for the seal members130,132.

In one aspect, the seal surface first portions130b,132bform an angle with each as defined by the angles a1 and a3. As shown, this angle is about 20 degrees. In one aspect, the seal surface second portions130c,132cform an angle with each other as defined by the angles a1, a2, a3, and a4. As shown, this angle is about 65 degrees. Other angles are possible. In some examples, the first portions130b,132bare planar while in others the first portions130b,132bare curved. In some examples, the second portions130c,132care planar while in others the second portions130c,132care curved. In some examples, each of the first portions130b,132band the second portions130c,132care planar with a curved or radiused portion joining the first and second portions together. In some examples, the first portions130b,132bare planar and the second portions130c,132care curved. In some examples, the first portions130b,132bdefine a majority of the length of the seal surfaces and the second portions130c,132cdefine a minority of the length of the seal surfaces.

As a result of the seal members130,132being disposed at the angles a5, a6, the seal members130,132taper towards each other in the insertion direction I1and in a direction away from the cover125such that the seal members130,132are closer to each other at a location remote from the cover125as compared to a location proximate the cover125(i.e. distance between seal members130,132increases in a direction towards the cover). This tapered configuration allows for easier installation of the filter cartridge100into the interior region20iof the housing body20with less compressive resistance from the seal members130,132, as compared to a configuration where the seal members130,132oriented entirely parallel to each other and the plane P without any tapering. This advantage is even further achieved by the additional increased tapering angle presented by the second portions130c,132cwhich deviates outside of the plane defined by the first portions130b,132b(i.e. distance between seals at second portions130c,132cincreases at a greater rate than distance between seals at first portions130b,132bin direction towards cover). These features allow for the filter cartridge100to simultaneously have axial seals while being transversely or side-loaded in the insertion direction I1, wherein the seals130,132form a seal with the housing20without further requiring any movement of the filter cartridge100within the housing body20along the axis X1in order to form a seal with the housing20.

Another advantage of the disclosed configuration is that the filter cartridge seals against the inlet and outlet housing assemblies40,50rather than the housing body20. Because the seal member130forms a seal against the seal surface56dof the inlet housing assembly50and the seal member132forms a seal against the seal surface46dof the outlet housing assembly40, it is not necessary for the cover125to form a leak-proof seal with the housing body20or for the filter cartridge100to form a leak-proof seal with the housing body20.

In one aspect, the filter cartridge100is also shown as being provided with lock interface features150at each end. The lock interface features150interact with the locking mechanisms90such that the filter cartridge100can be locked in place with respect to the housing20. As shown, the lock interface features150include an arcuate rib structure152and a pair of tab structures154, each of which is integrally formed on the access cover125. The structure and function of these features are further described in the lock mechanism section.

Filter Cartridge200

Referring toFIG.1A, the exemplary air cleaner assembly10includes an optional secondary or safety filter cartridge200. The safety filter cartridge200is shown in isolation atFIGS.71to74. The safety filter200is generally positionable between the main filter cartridge100and the outlet48bof the housing20. In a typical arrangement, the safely filter200is removably positioned within the air cleaner assembly10and would also typically be considered to be a service component that is removable and replaceable, as desired and/or necessary.

The exemplary embodiment of safety filter200includes an outer frame202that carries a seal member204having a pair of parallel lip seals, and generally matches the size and shape of the inner area of the housing outlet body42(e.g. straight segmented portions42dtogether with the straight sides of the interior surface of the sidewall42a) and can seal to the outlet body42, preferably with no gaps. In this way, the safety filter200can be pressed into the housing with a friction fit against the wall of the housing so that no air can reach the outlet without first going through the safety filter. The safety filter200can also include filtration media220, such as pleated media. A handle206may also be provided to aid in installing and removing the filter cartridge200from the housing20via the access opening22f.

Media Types and Configurations

Any type of filter media can be used as the media pack for the filter cartridges100,200in accordance with embodiments of the invention. For example, woven and non-woven materials using natural and/or synthetic fibers can be used to form fluted filter media, pleated media, and depth media. An exemplary configuration includes fluted filter media, such as a z-filter construction. The term “z-filter construction” as used herein, is meant to refer to a type of filter construction in which individual ones of corrugated, folded or otherwise formed filter flutes are used to define sets of longitudinal, typically parallel, inlet and outlet filter flutes for fluid flow through the media; the fluid flowing along the length of the flutes between opposite inlet and outlet flow ends (or flow faces) of the media. Some examples of filter media are provided in U.S. Pat. Nos. 5,820,646; 5,772,883; 5,902,364; 5,895,574; 6,210,469; 6,190,432; 6,350,296; 6,179,890; 6,235,195; D399,944; D428,128; D396,098; D398,046; and D437,401, each of which is incorporated herein by reference.

One type of z-filter media utilizes two specific media components joined together to form the media construction. The two components include a fluted (typically corrugated) media sheet and a facing media sheet. The facing media sheet is typically non-corrugated, although it is possible for it to also be corrugated (e.g., perpendicular to the flute direction) as described in U.S. Provisional Application No. 60/543,804, filed Feb. 11, 2004, and published as PCT WO 05/077487 on Aug. 25, 2005, which is incorporated herein by reference.

The fluted media sheet and the facing media sheet are used together to define media having parallel inlet and outlet flutes. In some instances, the fluted sheet and facing sheet are secured together and are then coiled as a media strip to form a z-filter media construction. Such arrangements are described, for example, in U.S. Pat. Nos. 6,235,195 and 6,179,890, each of which is incorporated herein by reference.

In certain other arrangements, some non-coiled sections or strips of fluted (typically corrugated) media secured to facing media, are stacked with one another, to create a filter construction.

Corrugated media is a specific form of fluted media, wherein fluted media has individual flutes or ridges (for example formed by corrugating or folding) extending thereacross. The term “corrugated” is used herein to refer to structure in media, such as media having a flute structure resulting from passing the media between two corrugation rollers (e.g., into a nip or bite between two rollers, each of which has surface features appropriate to cause corrugations in the resulting media).

Serviceable filter element or filter cartridge configurations utilizing z-filter media are sometimes referred to as “straight through flow configurations” or by variants thereof. In general, serviceable filter elements or cartridges have an inlet flow end (or face) and an opposite exit flow end (or face), with flow entering and exiting the filter cartridge in generally the same straight through direction. The term “serviceable” in this context is meant to refer to a media containing filter cartridge that is periodically removed and replaced from a corresponding fluid (e.g. air) cleaner.

Lock Mechanism90

Referring toFIGS.1to3, it can be seen that the connectors90, hereafter referred to as lock mechanisms90, are provided at each end of the filter cartridge100. As described previously, the filter cartridge100includes features150including arcuate ribs152and tab structures154that are integrally formed with the access cover125of the shell120. Each of the tabs154is received in a corresponding recess92aof an operator part92of the lock mechanism90. The filter cartridge100cannot be fully inserted into the housing20unless the lock mechanisms90are rotated into a fully unlocked position such that the recesses92aalign with the tabs154.

Referring toFIGS.39-45, the operator part92is shown in further detail. As shown, the operator part92includes the aforementioned recess92a, a pair of handle portions92bfor enabling a user to grasp and rotate the operator part92, a cover portion92c, a stem portion92dextending from the cover portion92c, a retaining groove92edefined within the stem portion92d, an arc-shaped rib portion92fdefining a groove or channel92gbetween the rib portion92fand a sidewall portion92hof the cover portion92c, a pair of recessed areas92iat the location where the rib portion92fmeets the sidewall portion92h, and a central indexing member92jextending between the rib portion92fand the sidewall portion92h. The sidewall portion92his also shown as including lead in or ramped portions92hat the ends of the of the sidewall portion92hto better allow the cover portion92cto be rotated over the filter cartridge access cover125.

Referring toFIGS.46-52, a base part94of the lock mechanism90is shown in further detail. As shown, the base part94includes a main body94awithin which a central aperture94bis defined, a lock spring retaining feature94cincluding a pair of apertures94fa pair of apertures94gand a central tab94h, a pair of arc-shaped rib portions94d, and a pair of attachment features94efor securing the lock mechanism90to the housing20. In one aspect, the attachment features94einclude a pair of L-shaped channels94ethat receive the correspondingly shaped L-shaped rib members24d,26don the housing body20.

Referring toFIGS.53to55, a lock spring96of the lock mechanism90is shown in further detail. As shown, the lock spring96extends from a base portion96ato ramped portions96bwhich in turn extends to tab portions96c. The lock spring96further includes a latch portion96dprojecting from the tab portion96c. The latch portion96dincludes a latch face96efor engaging against an edge92mof the cover portion92. The lock spring96is also shown as being formed with tabs96eand96ffor securing the lock spring96to the lock spring retaining feature94cof the base part94. In the example shown, the lock spring96is cut from a steel sheet (e.g. spring steel) and bent to shape.

Referring toFIGS.56-59, a retaining ring98of the lock mechanism90is shown in further detail. The retaining ring98includes a main body98awithin which a central aperture98bis defined. In the example shown, the retaining ring92is formed from a metal material, such as spring steel.

In one aspect, the lock spring base portion94ais received within the lock spring retaining feature94csuch the tabs96eextend through openings94fand94gand the tab96fis retained by the central tab94hof the base part94and such that the ramped portions96bextend away from the base part main body94a.FIG.36shows the lock spring96attached to the base portion94with the cover92removed to better show the connection between the lock spring96and the base portion94. This configuration allows the lock spring tab portion96cto be deflectable from a relaxed or resting position (i.e. the raised position in the drawings), as shown at position P1inFIGS.6E and32-36, to a deflected position (i.e. the lowered position in the drawings) towards the main body94a, as shown at position P2inFIG.78. The operator part92is mounted to the base part94by passing the stem portion92dof the operator part92through the central aperture94bof the base part94such that the operator part cover portion92ccovers the base part main body94a. In this position, the ribbed portion94dof the base part94rests in a groove formed between the operator part ribbed and outer wall92h. The two parts are secured together by installing the retaining ring98onto the retaining groove92e.

Once the operator and base parts92,94are secured together, the operator part92is rotatable with respect to the base part94from an unlocked position to a locked position. In the unlocked position, the operator part92is aligned such that the tab portion96cextends into the recess92ain the cover portion92cof the operator part92and such that the latch face96fof the locking spring96rests against the side edge92mof the operator part92. Due to the interaction between the latch face96fand the operator part side edge92m, the operator part92is unable to be rotated out of the unlocked position with the locking spring96in the resting position. In the event that that the operator part92is rotated past this position without a filter cartridge100installed, the operator part92can be easily rotated back to the unlocked position as the ramped face96ewill allow the locking spring latch portion96dto easily deflect and slide past the side edge92fon the operator part92.

When the filter cartridge100is installed into the housing20, the tabs154on the access cover125contact and deflect the locking spring96of each of the lock mechanisms90in a direction towards the base part94. This interaction is shown in the schematic presented atFIG.6Eas position P2. Once the filter cartridge100is fully installed, each latch portion96dis displaced beyond the side edge92fthereby allowing the operator part92to be rotated towards the locked position in either a clockwise or counterclockwise direction. As the operator part92is rotated towards the locked position, the ribbed portion92fon the operator part92slides along the ribbed structure152of the filter cartridge100. Thus, the ribbed structure152, which can be characterized as a connection member, works in conjunction with the operator part92to secure the media pack within the air cleaner housing. As the filter cartridge100is a true side-loaded filter cartridge which does not need to be axially displaced after insertion into the housing20to effectuate a seal, the filter cartridge100is configured such that at least a portion of the ribbed structure152extends axially beyond the inlet/outlet flow end of the media pack110. In the particular example shown, the entirety of the ribbed structure152is axially beyond the inlet/outlet flow end of the media pack110.

In the example shown, the locking mechanisms90do not directly effectuate a seal at seal members130,132in the direction of the longitudinal axis X. Instead, the seal is formed by an interference fit between the individual seals members130,132and the individual sealing surfaces46d,56d. The lock mechanisms90can be configured to exert a compressive force onto the filter cartridge100and thus the seal members130,132in the insertion direction. The locking mechanisms90do operate to lock the filter cartridge100in place in self centering fashion wherein stress is transferred between the lock mechanisms90and cover125but without imparting a force onto the seal members130,132. Thus, even in a configuration where only one of the seal members130,132is provided, the lock mechanisms90will still function to axially align and fix the filter cartridge100to effectuate a single seal without the need for the presence of the second seal or any other component on the cartridge or housing to effectuate the seal.

Additionally, the retaining ring92is configured such to exert a spring force onto the operator part92. The operator part92is rotated into the locking position until the rib92jof the operator part engages with a stop member or detent152ion the arcuate shaped rib structure152on the filter cartridge100to aid in retaining the operator part92in the locked position and to provide an installer with tactile feedback of the locked position. During initial rotation of the operator part92, the rib92jrides on to of or against the rib structure152on the filter cartridge100which provides slight resistance to rotation. Once the rib92ireaches the stop member152i, the rib92isnaps into the recess defined by the stop member152i, thus simultaneously indexing the operator part92into the locked position and providing tactile feedback. To remove the filter cartridge100from the housing, the operator simply rotates each operator part92until the recesses92aalign with the tabs154.

As can be appreciated by the above description, the complementary configuration of the locking mechanisms90and filter cartridge tabs154ensures that the correct filter cartridge is installed into a housing that is actually designed to receive the filter cartridge. If an attempt is made to install a filter cartridge that does not include the tabs154, the filter cartridge100will fail to enable the lock mechanisms to move to the locked position, thus alerting the installer that an incorrect filter cartridge is installed. Although the tabs and recesses are shown as having a particular shape, other shapes are possible. Different shapes may be used for different air cleaner sizes or designs, thus ensuring the correct filter cartridges are installed appropriate housings throughout an entire product line.

Mounting Arrangement30

Referring toFIGS.78-93, details of the mounting arrangement30are shown in greater detail. The mounting arrangement30is shown as being installed on the main housing body20atFIGS.1and3-8. As shown, the mounting arrangement30is shown as including a pair of mounting structures32that are mounted to the housing body20in a spaced apart and parallel arrangement. The mounting arrangement30is also shown as including four mounting clips34. Either of the mounting clips34or the mounting structures32can be independently used to mount the air cleaner10to a supporting structure with the mounting clips34providing a fixed-distance mounting arrangement and the mounting structures providing an adjustable mounting system. Where both mounting structures32and mounting clips34are provided, an installer or designer can utilize whichever mounting approach best suits a particular application. As the mounting structures32and mounting clips34can be independently used to mount the air cleaner10to a supporting structure, an air cleaner10can be provided with only the mounting structures32or only the mounting clips34.

As can be seen atFIGS.9and12, the housing body20defines a pair of channels defined by sidewalls25awhich receive the mounting structures32. The housing body is also provided with end walls25bextending across the sidewalls25aat each end. The end walls25bare shown as including apertures25csuch that the end walls can receive mounting clips34. The mounting clips34form a portion of the mounting arrangement. The housing body20is also shown as including apertures25dfor receiving a portion of the mounting structures32such that the mounting structures32can be secured to the housing body20.

With reference toFIGS.78-91, features of the mounting structures32are shown in greater detail. In one aspect, each mounting structure32includes a first channel part32athat receives a second channel part32b. As can be most easily seen atFIG.82, the second channel part32bhas a width or dimension that matches the head32dof a bolt32cthat allows the bolt to slide along the length of the second channel part32bbut prevents the bolt from rotating. The first channel part32ahas a central opening32ethrough which the head32dcan pass such that the head can be received by the second channel part32b. The first channel part32aadditionally has lateral walls32fthat extend towards each other to secure the opposite side of the bolt head32d. Thus, a bolt32ccan be received into the first channel part32aand then into the second channel part32bsuch that the bolt32cis slidably secured between the second channel part32band the walls32f. With such a configuration, the position of the bolts32ccan be easily adjusted to align with a given mounting structure. The bolts32care prevented from sliding off either end of the channel parts32a,32bby the end walls25bon the housing body20.

The second channel part32bis shown as including an extension part32gat one end that is received by the housing body slots25dand an extension part32hat the other end that can engage with or interact with the mounting clip34. The mounting structure32can also be provided with a spacer, fill, or interfence member32k(e.g. collapsed polymeric tube or moon-shaped polymeric tube) that can be received by the first and second channel parts32a,32bthat can aid in holding the bolts32cin a fixed position and dampen potential vibration. In one aspect, the first channel part32acan be provided with apertures32fthat receive tabs32gof the second channel part32bto aid in securing the first and second channel parts32a,32btogether.

Referring toFIGS.92-98, the retaining clip34is shown in greater detail. In one aspect, the retaining clip34includes a base portion34a, a head portion34bextending from the base portion34a, and a clip portion34cextending from the base portion34a. The head portion34bincludes an aperture34d, which can be a threaded opening for receiving a mounting bolt. The mounting clip34is installed onto the end wall25bsuch that the head portion34bextends through the aperture25cand such that the end wall25bis clipped between the base portion34aand the clip portion34c. The retaining clip34is further provided with a snap member34ethat snaps into the recess25cwhen the clip34is installed such that the clip34is retained onto the end wall25bvia a snap-fit type connection. The clip member34can also be provided with protrusions34fthat can snap into recesses formed in the housing body20to further secure the clip member34.

Positioning Arrangement70

Referring toFIGS.3A,3B,6B,6C, and6D, it can be seen that the air cleaner10is provided with a positioning arrangement70disposed within a well area27of the housing body20. In one aspect, the well area27is defined by a pair of sidewall portions27aand a sidewall portion27b. The portions27a,27bare a part of the housing body sidewall22a. The positioning arrangement70is designed to ensure that a proper filter cartridge100is installed into the air cleaner10. In one aspect, the positioning arrangement creates an internal profile within the housing body20that requires the filter cartridge100to have a matching and complementarily shaped profile in order to be received fully into the housing body20. In the embodiment shown, the positioning arrangement70is formed by a pair of arrays with spaced apart ribs29bextending from the housing body sidewall22ato pin extensions29a. In the example shown, five pins29aand ribs29bare shown on each side of the housing body interior region20i. The pins29aand ribs29bare each configured to receive and retain an insert module72. In the embodiment shown, three insert modules72are mounted onto the pins29aand ribs29bon each side of the housing body20. As should be appreciated, the positioning arrangement70is modular in nature and thus can be customized to achieve a number of different internal profiles to fit a particular application. For example, one, two, four, or all five insert modules72could be installed on each side. Where less than five insert modules72are utilized, the spacing between the insert modules72can likewise be customized (e.g. spaced on every other pin29a, etc.). Also, the number and arrangement of the insert modules72can be different from one side of the housing body20to the other. Once the desired number and arrangement of insert modules72is selected, the filter cartridge100can then be designed such that no part of the filter cartridge interferes with the insert modules72. An asymmetrical arrangement (side-to-side or front-to-back) can be selected such that it is impossible to inadvertently insert the filter cartridge100in the reverse direction, thus ensuring that even a properly selected filter is properly installed.

With reference toFIG.6B, an example filter cartridge100profile portion or extension100ais shown in which portions of the filter cartridge profile100aextend between the open spaces defined between the insert modules72and in which no portion of the filter cartridge profile100aextends into a space occupied by an insert module72. Thus, it is illustrated that a filter cartridge100must have a profile generally corresponding to profile100ain order to be fully received within the interior region20iof the housing body20in the proper orientation. In the embodiment shown, the profile extension100ais a protrusion integrally formed with the filter cartridge shell120.

FIGS.99-105ashow an example insert module72which includes a main body72aa recess72bfor receiving the pin29aand a recess72cfor receiving the rib29b. The insert module72bis also shown as including a profile head72dwhich can act as an interference surface for an improperly selected and/or installed filter cartridge100. The insert module72can also be provided with a pin structure72edisposed within the recess72bthat can be received by a corresponding opening27cin the pins29b.

Aspects of the Disclosure

Various aspects of the disclosure are further described in the following paragraphs.

A side-load air filter cartridge comprising: a media pack configured for installation into a side opening of an air cleaner housing, the media pack extending along a longitudinal axis between an inlet end and an outlet end, the media pack defining an outer perimeter; a seal arrangement operatively positioned with respect to the media pack, the seal arrangement defining an axial seal surface facing towards the outlet flow end, a portion of which is arranged at an oblique angle to the longitudinal axis; and a first connection member configured to engage with a lock mechanism of the air cleaner to secure the media pack within the air cleaner housing, the first connection member being operably connected to the media pack with a portion of the first connection member extending axially beyond the media pack outlet flow end. In one example, the connection member extends axially beyond all or a portion of the axial seal surface.

Any of the side-load filter cartridges described herein, further including a second connection member located opposite the first connection member and proximate the first or second axial end.

Any of the side-load filter cartridges described herein, wherein one or both of the first and second connection members is aligned with a first plane, the first plane extending through the media pack longitudinal axis and defining an axis of symmetry of the media pack.

Any of the side-load filter cartridges described herein, wherein the first connection member has an axis of symmetry aligned with an axis of symmetry of the media pack.

Any of the side-load air filter cartridges described herein, wherein one or both of the first and second connection members each include an arc-shaped sidewall.

Any of the side-load air filter cartridges described herein, wherein each arc-shaped sidewall extends orthogonally away from the media pack and longitudinal axis.

Any of the side-load air filter cartridges described herein, wherein each arc-shaped sidewall includes a detent for receiving a corresponding feature on a lock mechanism mounted to the housing.

Any of the side-load air filter cartridges described herein, further including at least one tab structure for interacting with a corresponding lock mechanism associated with the housing.

Any of the side-load air filter cartridges described herein, wherein the at least one tab structure extends in a direction parallel to the longitudinal axis.

Any of the side-load air filter cartridges described herein, wherein the at least one tab structure includes at least two tab structures that extend away from each other such that a first tab structure extends axially beyond the media pack outlet end and a second tab structure extends axially beyond the media pack inlet end.

Any of the side-load air filter cartridges described herein, further comprising a circumferential shell surrounding the media pack outer perimeter.

Any of the side-load air filter cartridges described herein, further comprising a cover portion.

Any of the side-load air filter cartridges described herein, wherein the cover portion is integrally formed with the circumferential shell.

Any of the side-load air filter cartridges described herein, wherein one or both of the first and second connection members are provided on the cover portion.

Any of the side-load air filter cartridges described herein, wherein tab structures are provided on the cover portion.

Any of the side-load air filter cartridges described herein, wherein the cover portion includes a handle for installing and removing the media pack from an air cleaner housing, the handle being external to the media pack outer perimeter.

Any of the side-load air filter cartridges described herein, wherein the handle extends in a direction parallel to the media pack longitudinal axis.

Any of the side-load air filter cartridges described herein, wherein the handle is integrally formed with the cover portion.

Any of the side-load air filter cartridges described herein, wherein the media pack has a first length and the handle has a second length that is a majority of the first length.

A side-load air filter cartridge comprising: a media pack configured for installation into a side opening of an air cleaner housing, the media pack extending along a longitudinal axis and defining an outer perimeter; and a seal arrangement operatively positioned with respect to the media pack, the seal arrangement defining an axial seal surface facing generally towards the inlet flow end or outlet flow end, a portion of which is arranged at an oblique angle to the longitudinal axis; wherein a second segment of the axial seal surface deviates away from a first segment of the axial seal surface in an axial direction such that the axial seal surface second segment falls outside of a plane or curved surface defined by the axial seal surface first segment.

Any of the side-load air filter cartridges described herein, wherein the oblique angle is between 91 and 135 degrees.

Any of the side-load air filter cartridges described herein, wherein the oblique angle is 100 degrees.

Any of the side-load filter cartridges described herein, wherein the axial seal surface first segment is disposed at a first oblique angle and the axial seal surface second segment is disposed at a second oblique angle, wherein the second oblique angle is less than the first oblique angle.

Any of the side-load filter cartridges described herein, wherein the first oblique angle is between 91 and 135 degrees and the second oblique angle is between 60 and 70 degrees.

Any of the side-load filter cartridges described herein, wherein the first oblique angle is 100 degrees and the second oblique angle is 152 degrees.

Any of the side-load air filter cartridges described herein, wherein both the first and second segments of the seal arrangement are disposed at an oblique angle to the media pack outlet end.

Any of the side-load air filter cartridges described herein, wherein the axial seal surface second segment is aligned along a second plane that is disposed at an oblique angle to the first plane.

Any of the side-load air filter cartridges described herein, wherein the first segment of the seal arrangement crosses a plane defined by the media pack outlet end.

Any of the side-load air filter cartridges described herein, wherein one or both of the axial seal surface first and second segments has a curved profile shape.

Any of the side-load air filter cartridges described herein, wherein one or both of the axial seal surface first and second segments has a linear profile.

Any of the side-load air filter cartridges described herein, wherein the axial seal surface first and second segments are planar and are joined by an intermediate radiused portion.

Any of the side-load air filter cartridges described herein, wherein the axial seal surface first segment defines a majority of a total length of the axial seal surface.

Any of the side-load air filter cartridges described herein, wherein the seal arrangement is injection molded.

Any of the side-load filter cartridges described herein, further comprising: a circumferential shell surrounding at least a portion of the media pack outer perimeter; wherein at least a portion of the seal arrangement is disposed about the circumferential shell.

Any of the side-load filter cartridges described herein, further comprising: a seal support flange circumscribing at least a portion of the circumferential shell; wherein the seal arrangement is supported by the seal support flange.

Any of the side-load filter cartridges described herein, wherein the seal arrangement is injection molded onto the seal support flange.

Any of the side-load filter cartridges described herein, wherein the media pack is fluted media.

Any of the side-load filter cartridges described herein, wherein the first seal arrangement circumscribes at least a portion of the media pack outer perimeter.

Any of the side-load air filter cartridges described herein, further including a handle for installing and removing the media pack from an air cleaner housing, the handle being external to the media pack outer perimeter.

Any of the side-load air filter cartridges described herein, wherein the handle extends in a direction parallel to the media pack longitudinal axis.

Any of the side-load air filter cartridges described herein, wherein the handle is integrally formed with a cover portion.

Any of the side-load air filter cartridges described herein, wherein the media pack has a first length and the handle has a second length that is a majority of the first length.

A side-load air filter cartridge comprising: a media pack configured for installation into a side opening of an air cleaner housing, the media pack extending along a longitudinal axis and defining an outer perimeter; and a first seal arrangement operatively positioned with respect to the media pack and defining a first axial seal surface; and a second seal arrangement operatively positioned with respect to the media pack and defining a second axial seal surface, wherein the second axial seal surface faces generally away from the first axial seal surface; wherein a distance between corresponding axially opposite first segments of the first and second axial seal surfaces increases at a first rate along a length of the first segments and wherein a distance between corresponding axially opposite second segments of the first and second axial seal surfaces increases at a second rate along a length of the second segments, wherein the second rate is different than the first rate.

A side-load air filter cartridge comprising: a media pack configured for installation into a side opening of an air cleaner housing, the media pack extending along a longitudinal axis and defining an outer perimeter; and a first seal arrangement operatively positioned with respect to the media pack and defining a first axial seal surface opposite a first seal support flange supporting the first seal arrangement; and a second seal arrangement operatively positioned with respect to the media pack and defining a second axial seal surface opposite a second seal support flange supporting the second seal arrangement, wherein the second axial seal surface faces generally away from the first axial seal surface; wherein the media pack extends axially beyond at least a portion of one or both of the first and second axial seal surfaces.

A side-load air filter cartridge comprising: a media pack configured for installation into a side opening of an air cleaner housing, the media pack extending along a longitudinal axis and defining an outer perimeter; and a first seal arrangement operatively positioned with respect to the media pack and defining a first axial seal surface; and a second seal arrangement operatively positioned with respect to the media pack and defining a second axial seal surface, wherein the second axial seal surface faces generally away from the first axial seal surface; wherein the media pack extends axially beyond at least a portion of one or both of the first and second axial seal surfaces.

Any of the side-load air filter cartridges described herein, wherein the first seal arrangement first segment is disposed at a first oblique angle to the second seal arrangement first segment.

Any of the side-load air filter cartridges described herein, wherein the first oblique angle is between 5 and 20 degrees.

Any of the side-load air filter cartridges described herein, wherein the first axial seal surface first segment is disposed in a non-parallel relationship with the first axial seal second segment.

Any of the side-load air filter cartridges described herein, wherein the second axial seal surface first segment is disposed in a non-parallel relationship with the second axial seal second segment.

Any of the side-load air filter cartridges described herein, wherein the first and second axial seal surface first d segments are disposed at an oblique angle to the media pack outlet end.

Any of the side-load air filter cartridges described herein, wherein the first oblique angle is between 10 and 20 degrees.

Any of the side-load air filter cartridges described herein, wherein the first oblique angle is 10 degrees.

Any of the side-load air filter cartridges described herein, wherein the first segment of one or both of the first and second seal arrangements crosses a plane defined by the media pack inlet or outlet end.

Any of the side-load air filter cartridges described herein, wherein one or both of the axial seal surface first and second segments of one or both of the first and second seal arrangements defines a curved surface.

Any of the side-load air filter cartridges described herein, wherein one or both of the axial seal surface first and second segments of one or both of the first and second seal arrangements defines a planar surface.

Any of the side-load air filter cartridges described herein, wherein the axial seal surface first and second segments of one or both of the first and second seal arrangements are joined by an intermediate radiused portion.

Any of the side-load air filter cartridges described herein, wherein the axial seal surface first segment of one or both of the first and second seal arrangements is aligned along a first plane and the axial seal surface second segment of one or both of the first and second seal arrangements is disposed in a non-parallel relationship with the first portion.

Any of the side-load air filter cartridges described herein, wherein the axial seal surface second segments of one or both of the first and second seal arrangements defines a curved surface.

Any of the side-load filter cartridges described herein, further comprising: a first seal support flange circumscribing at least a portion of the circumferential shell; wherein the first seal arrangement is supported by the first seal support flange.

Any of the side-load filter cartridges described herein, wherein the first seal arrangement is injection molded onto the seal support flange.

Any of the side-load filter cartridges described herein, further comprising: a first seal support flange circumscribing at least a portion of the circumferential shell; a second seal support flange circumscribing at least a portion of the circumferential shell; wherein the first seal arrangement is supported by the first seal support flange and the second seal arrangement is supported by the second seal support flange.

Any of the side-load filter cartridges described herein, wherein the first and second seal arrangements are respectively injection molded onto the first and second seal support flanges.

Any of the side-load filter cartridges described herein, wherein the media pack is fluted media.

Any of the side-load filter cartridges described herein, wherein one or both of the first and second seal arrangements circumscribe at least a portion of the media pack outer perimeter.

Any of the side-load air filter cartridges described herein, further including a handle for installing and removing the media pack from an air cleaner housing, the handle being external to the media pack outer perimeter.

Any of the side-load air filter cartridges described herein, wherein the handle extends in a direction parallel to the media pack longitudinal axis.

Any of the side-load air filter cartridges described herein, wherein the handle is integrally formed with a cover portion.

Any of the side-load air filter cartridges described herein, wherein the media pack has a first length and the handle has a second length that is a majority of the first length.

An air cleaner assembly comprising: a housing defining an inlet and an outlet, and including an access opening between the inlet and outlet; a filter cartridge received within the housing, the filter cartridge covering the access opening; a lock mechanism, the lock mechanism being movable between an unlocked position in which the filter cartridge can be installed and removed from the housing and a locked position in which the filter cartridge is secured within the housing; wherein the filter cartridge and lock mechanism include interacting features enabling the lock mechanism to be moved from the unlocked position to the locked position only when the filter cartridge is installed within the housing.

Any of the air cleaner assemblies described herein, wherein the interacting features include a tab on the filter cartridge and a lock spring mounted within the lock mechanism.

Any of the air cleaner assemblies described herein, wherein the lock spring is movable between a relaxed position and a deflected position, and wherein when the spring is in the relaxed position the lock spring prevents rotation of an operator part of the lock mechanism such that the lock mechanism is prevented from being rotated out of the unlocked position.

Any of the air cleaner assemblies described herein, wherein the lock spring includes a latch portion that engages with the operator part when the lock spring is in the relaxed position.

Any of the air cleaner assemblies described herein, wherein the latch portion engages with a side edge of the operator part when the lock spring is in the relaxed position.

Any of the air cleaner assemblies described herein, wherein when the tab of the filter cartridge moves the lock spring to the deflected position when the filter cartridge is fully installed within the housing.

Any of the air cleaner assemblies described herein, wherein the lock mechanism includes two lock mechanisms.

Any of the air cleaner assemblies described herein, wherein the lock mechanism includes a rotatable operator part that engages with a portion of the filter cartridge when the lock mechanism is in the locked position.

Any of the air cleaner assemblies described herein, further including a handle for installing and removing the media pack from the air cleaner housing, the handle being external to the media pack outer perimeter.

Any of the air cleaner assemblies described herein, wherein the handle extends in a direction parallel to the media pack longitudinal axis.

Any of the air cleaner assemblies described herein, wherein the handle is integrally formed with a cover portion.

Any of the air cleaner assemblies described herein, wherein the media pack has a first length and the handle has a second length that is a majority of the first length.

A lock mechanism for securing an air filter cartridge within an air cleaner housing, the lock mechanism comprising: a base part configured for mounting to a housing of the air filter cartridge; an operator part rotatably mounted to the base part, the operator part being rotatable between an unlocked position and a locked position; and a lock spring mounted to the base part, the lock spring being movable between a relaxed position and a deflected position, wherein when the lock spring is in the relaxed position, the operator part is prevented from rotating to the locked position from the unlocked position.

Any of the lock mechanisms described herein, wherein the operator part defines a recess area for receiving a tab portion of the filter cartridge for moving the lock spring from the relaxed position to the locked position.

Any of the lock mechanisms described herein, wherein a portion of the lock spring extends into the operator part recess area.

Any of the lock mechanisms described herein, wherein the lock spring includes a latch portion that engages with the operator part when the lock spring is in the relaxed position.

Any of the lock mechanisms described herein, wherein the latch portion engages with a side edge of the operator part when the lock spring is in the relaxed position.

Any of the lock mechanisms described herein, further comprising a retaining ring securing the operator part to the base part.

Any of the lock mechanisms described herein, wherein the operator part includes a stem portion extending through the base part, and wherein the retaining ring is mounted to the stem to secure the operator part to the base part.

Any of the lock mechanisms described herein, wherein the base part includes mounting features for securing the base part to the air cleaner housing.

Any of the lock mechanisms described herein, wherein the lock mechanism includes a pair of lock springs.

Any of the lock mechanisms described herein, wherein the lock mechanism includes a pair of recessed areas.

An air cleaner assembly comprising: a housing defining an inlet and an outlet, and including an access opening between the inlet and outlet; a filter cartridge received within the housing, the filter cartridge including a cover part that covers the access opening, the cover part including a tab structure; and a lock mechanism comprising: a base part mounted to the housing of the air filter cartridge; an operator part rotatably mounted to the base part, the operator part being rotatable between an unlocked position and a locked position; and a lock spring mounted to the base part, the lock spring being movable between a relaxed position and a deflected position, wherein when the lock spring is in the relaxed position, the operator part is prevented from rotating to the locked position from the unlocked position.

Any of the air cleaner assemblies described herein, wherein the operator part includes a stem portion received in a central aperture of the base part, and wherein the operator part is secured to the base part by a retaining ring mounted to the stem portion.

Any of the air cleaner assemblies described herein, wherein the operator part defines a recess area for receiving the tab structure of the filter cartridge, wherein the tab structure moves the lock spring from the relaxed position to the locked position when the filter cartridge is installed within the housing.

Any of the air cleaner assemblies described herein, wherein the lock spring includes a latch portion that engages with the operator part when the lock spring is in the relaxed position.

Any of the air cleaner assemblies described herein, wherein the lock mechanism includes a pair of lock springs.

Any of the air cleaner assemblies described herein, wherein the lock mechanism includes a pair of recessed areas.

Any of the air cleaner assemblies described herein, further including a handle for installing and removing the media pack from the air cleaner housing, the handle being external to the media pack outer perimeter.

Any of the air cleaner assemblies described herein, wherein the handle extends in a direction parallel to the media pack longitudinal axis.

Any of the air cleaner assemblies described herein, wherein the handle is integrally formed with a cover portion.

Any of the air cleaner assemblies described herein, wherein the media pack has a first length and the handle has a second length that is a majority of the first length.

A filter housing comprising: a main body extending between a first end and a second end, the main body defining an access opening between the first and second ends, the access opening being for receiving a filter cartridge, the main body having a first flange located at the outlet end; and an outlet body extending between a base end and an outlet end, the outlet body having an outlet body flange proximate the base end, wherein the outlet body is connected to the main body such that the outlet body flange is adjacent the main body first flange with the first flange being located between the outlet body flange and the outlet body outlet end.

Any of the filter housings described herein, wherein the outlet body is connected to the main body with a snap-fit connection.

Any of the filter housings described herein, wherein the outlet body defines a first sealing surface against which a filter cartridge disposed within the main body can form a seal.

Any of the filter housings described herein, wherein the outlet body defines a first seal flange defining the first seal surface for forming a first seal with the filter cartridge.

Any of the filter housings described herein, further comprising: a main body second flange located at the inlet end; an inlet body extending between a base end and an inlet end, the inlet body having an inlet body flange proximate the base end, wherein the inlet body is connected to the main body such that the inlet body flange is adjacent the main body second flange with the second flange being located between the inlet body flange and the outlet body inlet end.

Any of the filter housings described herein, wherein the inlet body is connected to the main body with a snap-fit connection.

Any of the filter housings described herein, wherein the inlet body defines a second seal flange defining a second seal surface for forming a second seal with a filter cartridge housed within the main body.

A filter housing comprising: a main body extending between a first end and a second end, the main body defining an access opening between the first and second ends, the access opening being for receiving a filter cartridge, the main body having a first flange located at the inlet end; and an inlet body extending between a base end and an inlet end, the inlet body having an inlet body flange proximate the base end, wherein the inlet body is connected to the main body such that the inlet body flange is adjacent the main body first flange with the second flange being located between the inlet body flange and the outlet body inlet end.

Any of the filter housings described herein, wherein the inlet body is connected to the main body with a snap-fit connection.

Any of the filter housings described herein, wherein the inlet body defines a first sealing surface against which a filter cartridge disposed within the main body can form a seal.

Any of the filter housings described herein, wherein the inlet body defines a first seal flange defining the first seal surface for forming a first seal with the filter cartridge.

Any of the filter housings described herein, further comprising: a main body second flange located at the inlet end; an outlet body extending between a base end and an outlet end, the outlet body having an outlet body flange proximate the base end, wherein the outlet body is connected to the main body such that the outlet body flange is adjacent a main body second flange with the second flange being located between the outlet body flange and the outlet body outlet end.

Any of the filter housings described herein, wherein the outlet body is connected to the main body with a snap-fit connection.

Any of the filter housings described herein, wherein the outlet body defines a second sealing surface against which a filter cartridge disposed within the main body can form a seal.

Any of the filter housings described herein, wherein the outlet body defines a second seal flange defining the second seal surface for forming a second seal with the filter cartridge.

An air cleaner housing comprising: a main body extending between a first end and a second end, the main body defining an access opening between the first and second ends, the access opening being for receiving a filter cartridge, the main body having a first flange located at the outlet end; an outlet body extending between a base end and an outlet end, the outlet body having an outlet body flange proximate the base end, wherein the outlet body is connected to the main body such that the outlet body flange is adjacent the main body first flange with the first flange being located between the outlet body flange and the outlet body outlet end; and an inlet body extending between a base end and an inlet end, the inlet body having an inlet body flange proximate the base end, wherein the inlet body is connected to the main body such that the inlet body flange is adjacent the main body second flange with the second flange being located between the inlet body flange and the outlet body inlet end.

Any of the air cleaner filter housings described herein, wherein the inlet body and the outlet body are connected to the main body with snap-fit connections.

Any of the air cleaner filter housings described herein, wherein the outlet body defines a first sealing surface against which a filter cartridge disposed within the main body can form a first seal and the inlet body defines a second sealing surface against which the filter cartridge can form a second seal.

Any of the air cleaner filter housings described herein, wherein the outlet body defines a first seal flange defining the first seal surface and the inlet body defines a second seal flange defining the second seal surface.

Any of the air cleaner filter housings described herein, wherein the inlet body includes a precleaner air separator and the outlet body is configured to house a secondary filter cartridge.

An air cleaner assembly comprising: a housing defining an inlet and an outlet, and including an access opening between the inlet and outlet; an air filter cartridge operably installed within the housing; and a pair of mounting arrangements located on an exterior side of the housing, wherein each of the pair of mounting arrangements slidably retains at least one mounting bolt.

Any of the air cleaner assemblies described herein, wherein the housing defines a pair of channel structures, wherein each of the pair of mounting arrangements is installed within one of the pair of channel structures.

Any of the air cleaner assemblies described herein, wherein each of the pair of mounting arrangements includes a first channel part and a second channel part, wherein the second channel part is received within the second channel part.

Any of the air cleaner assemblies described herein, wherein the first channel part includes a flange portions that retains a head of the at least one mounting bolt within the mounting structure.

Any of the air cleaner assemblies described herein, wherein the second channel part includes sidewalls that prevent the head of the at least one mounting bolt from rotating with respect to the mounting structure.

Any of the air cleaner assemblies described herein, wherein the first channel part flange portions of each of the pair of first channel parts define an opening for receiving the head of the at least one mounting bolt.

Any of the air cleaner assemblies described herein, wherein each of the pair of mounting arrangements includes an elastic elongate spacer positioned within the second channel part, the spacer being for retaining the position of the at least one mounting bolt and for dampening vibration between the at least one mounting bolt and the mounting structure.

Any of the air cleaner assemblies described herein, wherein the at least one mounting bolt includes a pair of mounting bolts.

Any of the air cleaner assemblies described herein, further including a plurality of mounting clips secured to the pair of channel structures, the plurality of mounting clips being for providing a fixed mounting position for the air cleaner assembly.

Any of the air cleaner assemblies described herein, wherein each of the plurality of mounting clips includes a threaded connection for receiving a mounting bolt.

Any of the air cleaner assemblies described herein, wherein each of the plurality of mounting clips is attached to the housing with a snap-fit connection.

An air cleaner assembly comprising: a housing defining an inlet and an outlet, and including an access opening between the inlet and outlet; a filter cartridge received within an interior region of the housing, the filter cartridge defining a insertion profile portion; and a positioning arrangement located within an interior of the housing, the position arrangement defining an interior profile having a complementary shape to the insertion profile portion of the filter cartridge, wherein the filter cartridge can only be fully inserted into the interior region of the housing when the filter cartridge is oriented in a single direction.

Any of the air cleaner assemblies described herein, wherein the positioning arrangement includes two positioning arrangements and the filter cartridge insertion profile portion includes two profile portions.

Any of the air cleaner assemblies described herein, further including a handle for installing and removing the media pack from the air cleaner housing, the handle being external to the media pack outer perimeter.

Any of the air cleaner assemblies described herein, wherein the handle extends in a direction parallel to the media pack longitudinal axis.

Any of the air cleaner assemblies described herein, wherein the handle is integrally formed with a cover portion.

Any of the air cleaner assemblies described herein, wherein the media pack has a first length and the handle has a second length that is a majority of the first length.

Methods of making and using an air cleaner assembly or a filter cartridge, such as any of the embodiments of air cleaner assemblies or filter cartridges shown or described herein.

An access cover for securing an air filter cartridge within an air cleaner housing, the cover comprising: a main body extending between a first axial end and a second axial end and between an exterior side and an interior side, the interior side being adapted to exert a closing force onto the air filter cartridge; a first connection member operably connected to the access cover main body, wherein the first connection member is located proximate the main body first axial end, the connection member interacting with a lock mechanism of the air cleaner housing to fix the axial position of the main body with respect to the housing and to generate the closing force when the access cover is secured to the air cleaner housing by the first connection member.

Any of the access covers described herein, further including a second connection member located opposite the first connection member proximate the second axial end.

Any of the access covers described herein, wherein one or both of the first and second connection members are integrally formed with the main body.

Any of the access covers described herein, wherein one or both of the first and second connection members each include an arc-shaped sidewall.

Any of the access covers described herein, wherein each arc-shaped sidewall extends orthogonally away from the media pack and longitudinal axis.

Any of the access covers described herein, wherein each arc-shaped sidewall includes a detent for receiving a corresponding feature on a lock mechanism mounted to the housing.

Any of the access covers described herein, wherein one or both of the first and second connection members each include a tab structure for interacting with a corresponding lock mechanism associated with the housing.

Any of the access covers described herein, wherein one or both of the tab structures of the first and second connection members extend in a direction parallel to the longitudinal axis.

Any of the access covers described herein, wherein the tab structures of one or both of the first and second connection members extend away from each other such that a first tab structure extends axially beyond the media pack outlet end and a second tab structure extends axially beyond the media pack inlet end.

Any of the access covers described herein, wherein the tab structures of one or both of the first and second connection members each include a pair of axially extending parallel tabs.

Any of the access covers described herein, wherein each arc-shaped sidewall is at least partially supported by one of the tab structures.

Any of the access covers described herein, wherein the main body includes an integrally formed handle.

Any of the access covers described herein, wherein the handle extends axially between the pair of connection features.

Any of the access covers described herein, wherein the main body has a longitudinal axis of symmetry.

Any of the access covers described herein, wherein the main body has a transverse axis of symmetry.

A side-load air filter cartridge comprising: a media pack configured for installation into a side opening of an air cleaner housing, the media pack extending along a longitudinal axis between an inlet face and an outlet face, the media pack defining an outer perimeter; a seal arrangement operatively positioned with respect to the media pack, the seal arrangement defining an axial seal surface facing towards the outlet flow end, a portion of which is arranged at an oblique angle to the longitudinal axis; and an access cover for securing the media pack within an air cleaner housing, the access cover including a main body extending between a first axial end and a second axial end and between an exterior side and an interior side, wherein the access cover first and second axial ends extend beyond the inlet and outlet faces of the media pack and wherein the first and second interior sides extend beyond the media pack outer perimeter to define a closure surface, wherein the closure surface has a varying profile relative to the longitudinal axis and has a first axis of symmetry that is orthogonal to the media pack longitudinal axis.

Any of the side-load air filter cartridges described herein, wherein the access cover has a second axis of symmetry that is parallel to the media pack longitudinal axis.

Any of the side-load air filter cartridges described herein, further including a second connection member located opposite the first connection member proximate the second axial end.

Any of the side-load air filter cartridges described herein, wherein one or both of the first and second connection members are integrally formed with the main body.

Any of the side-load air filter cartridges described herein, wherein one or both of the first and second connection members each include an arc-shaped sidewall.

Any of the side-load air filter cartridges described herein, wherein each arc-shaped sidewall extends orthogonally away from the media pack and longitudinal axis.

Any of the side-load air filter cartridges described herein, wherein each arc-shaped sidewall includes a detent for receiving a corresponding feature on a lock mechanism mounted to the housing.

Any of the side-load air filter cartridges described herein, wherein one or both of the first and second connection members each include a tab structure for interacting with a corresponding lock mechanism associated with the housing.

Any of the side-load air filter cartridges described herein, wherein one or both of the tab structures of the first and second connection members extend in a direction parallel to the longitudinal axis.

Any of the side-load air filter cartridges described herein, wherein the tab structures of one or both of the first and second connection members extend away from each other such that a first tab structure extends axially beyond the media pack outlet end and a second tab structure extends axially beyond the media pack inlet end.

Any of the side-load air filter cartridges described herein, wherein the tab structures of one or both of the first and second connection members each include a pair of axially extending parallel tabs.

Any of the side-load air filter cartridges described herein, wherein each arc-shaped sidewall is at least partially supported by one of the tab structures.

Any of the side-load air filter cartridges described herein, wherein the main body includes an integrally formed handle.

Any of the side-load air filter cartridges described herein, wherein the handle extends axially between the pair of connection features.

Any of the side-load air filter cartridges described herein, wherein the main body has a longitudinal axis of symmetry.

Any of the side-load air filter cartridges described herein, wherein the main body has a transverse axis of symmetry.

An air filter cartridge comprising: a media pack configured for installation into an air cleaner housing, the media pack extending along a longitudinal axis between an inlet face and an outlet face; a seal arrangement operatively positioned with respect to the media pack, the seal arrangement defining an radial seal surface; and a support frame having an inlet end proximate the media pack inlet face and an outlet end proximate the media pack outlet face, wherein the support frame defines: a perimeter portion circumscribing the media pack; a handle portion proximate the inlet end, the handle portion being for allowing an operator to install and remove the air filter cartridge into and out of the air cleaner housing; a first member of a positioning arrangement proximate the outlet end, the first member being for interacting with a second member of the positioning arrangement located on the air cleaner housing to fix the position of the air filter cartridge with respect to the air cleaner housing.

Any of the air filter cartridges described herein, wherein the handle portion extends away from the perimeter portion in a radial direction.

Any of the air filter cartridges described herein, wherein the first member of the positioning arrangement is a slot defined within the perimeter portion, wherein the slot extends in a direction parallel to the media pack longitudinal axis.

Any of the air filter cartridges described herein, wherein the support frame perimeter portion, the handle portion, and the first member are integrally formed as a single component.

Any of the air filter cartridges described herein, wherein the seal arrangement is mounted to the support frame.

Any of the air filter cartridges described herein, wherein the seal arrangement is non-planar.

Any of the air filter cartridges described herein, wherein a first portion of the seal arrangement is proximate the media pack inlet end and a second portion of the seal arrangement is proximate the media pack outlet end.

Any of the air filter cartridges described herein, wherein the seal arrangement first portion is oppositely positioned from the handle portion on the support frame and the seal arrangement second portion is oppositely positioned from the first member of the positioning arrangement on the support frame.

Any of the air filter cartridges described herein, wherein the media pack includes pleated media.

Any of the air filter cartridges described herein, wherein the seal arrangement includes a pair of lip seals.

Any of the air filter cartridges described herein, wherein the seal arrangement is injection molded onto the support frame.

A method of serving an air cleaner, the method including: positioning one or more lock mechanisms mounted to a housing of the air cleaner into an unlocked position, wherein the one or more lock mechanisms are prevented from being moved from the unlocked position to a locked position when a filter cartridge is removed from the housing; inserting a filter cartridge into the air cleaner housing, wherein the step of inserting the filter cartridge enables the one or more lock mechanisms to be movable from the unlocked position to the locked position; and moving the one or more lock mechanisms into the locked position. The method of servicing, wherein the one or more lock mechanisms includes a pair of lock mechanisms. The method of servicing, wherein the one or more lock mechanisms includes a lock spring that prevents the one or more lock mechanisms from moving to the locked position from the unlocked position when the lock spring is in a first position, and wherein the filter cartridge includes a component for moving the lock spring out of the first position.

The present invention has now been described with reference to several embodiments thereof. The entire disclosure of any patent or patent application identified herein is hereby incorporated by reference. The foregoing detailed description and examples have been given for clarity of understanding only. No unnecessary limitations are to be understood therefrom. It will be apparent to those skilled in the art that many changes can be made in the embodiments described without departing from the scope of the invention. Thus, the scope of the present invention should not be limited to the structures described herein, but only by the structures described by the language of the claims and the equivalents of those structure