Source: https://patents.google.com/patent/DE102004049791A1/en
Timestamp: 2020-06-05 19:40:28
Document Index: 767929980

Matched Legal Cases: ['art 17', 'art 19', 'art 17', 'art 19', 'art 19', 'art 21', 'arts 19', 'art 17', 'art 17']

DE102004049791A1 - Induction system for internal combustion engine has housing wall vibration damping element on at least one wall of air filter housing - Google Patents
Induction system for internal combustion engine has housing wall vibration damping element on at least one wall of air filter housing
DE102004049791A1
DE102004049791A1 DE200410049791 DE102004049791A DE102004049791A1 DE 102004049791 A1 DE102004049791 A1 DE 102004049791A1 DE 200410049791 DE200410049791 DE 200410049791 DE 102004049791 A DE102004049791 A DE 102004049791A DE 102004049791 A1 DE102004049791 A1 DE 102004049791A1
DE200410049791
Heinz Daubner
Reinhold Lebherz
2004-10-12 Application filed by Mann and Hummel GmbH filed Critical Mann and Hummel GmbH
2004-10-12 Priority to DE200410049791 priority Critical patent/DE102004049791A1/en
2006-04-13 Publication of DE102004049791A1 publication Critical patent/DE102004049791A1/en
It is proposed an intake system for an internal combustion engine, this has at least one blank air line, an air filter and at least one clean air line. The air filter is arranged in an air filter housing, consisting of plastic. On at least one housing wall of the air filter housing a, vibrations of the housing wall damping element is provided, this element is indirectly fixed by a pressure plate.
The The invention relates to an intake system of an internal combustion engine with at least one raw air duct, at least one air filter, which in an air filter housing is arranged and at least one clean air line.
at Intake systems of the known type are used to reduce the intake noise, parts of the Air filter housing or the raw air duct provided with sound-insulating wall linings. When Sound-absorbing material occasionally becomes a woven fabric, knitted fabric or knitted fabric used that at particularly critical locations inside the case or the line is arranged.
From the DE 19859854 a filter is known in particular for the intake air of internal combustion engines, wherein the filter housing has at least one stiffener. This stiffening serves to change the natural vibration of the component. The stiffener may be attached to a location of the housing which would have the greatest amplitude of vibration upon vibration excitation. In this way, the vibration of the housing can be prevented. However, this stiffening anchors or webs are required, which extend into the housing interior and require an abutment on a rigid structure.
Of the Invention is based on the object, an intake system of an internal combustion engine to provide, which has an air filter housing, the body sound optimized is and has a simple and inexpensive construction. These The object is solved by the features of independent claim 1.
Of the Advantage of the invention is that no braces or Tie rod needed which are in the housing interior protrude. It is sufficient, the one to be damped housing area with a vibration-damping Equip element. This element is inventively indirectly via a Pressure plate positioned or fixed.
The Air filter housing consists of a plastic material, in particular a thermoplastic Plastic, as well as the pressure plate. This can be this pressure plate relatively easy with the case connect, for example, the connection of the two parts via vibration welding. In order to an external structure of the air filter housing in terms of optical properties is not changed, It is advantageous to the welded joint to perform in the places where no impairment the optical properties occurs or is expected.
According to one Embodiment of the invention is the vibration damping Element, a metal plate adapted to the contour of the housing area is or can be adapted by deformation. Suitable for optimal vibration damping in particular ...... (inventor: register material composition) .... According to training, the Pressure plate have air guide ribs or air ducts. In addition to the function as a fixing element, the pressure plate then also has the property a certain airflow to generate or the air flow to influence.
According to one Another embodiment of the invention, the air filter housing is in two parts designed, it consists of a lower part and a top. In one or in both parts antivibration Elements can be arranged, the connection of the two housing parts conveniently takes place through a welded joint. Advantageously, the pressure plate extends into the Range of welded joint and can be welded in one operation with the two housing parts or be fastened or braced.
The The invention also relates to a method of manufacturing an intake system an internal combustion engine, wherein first the housing parts in injection molding be made of plastic. Subsequently, in at least one housing part inserted a damping plate and a pressure plate on the damping plate is attached. The pressure plate is in the welding of the two housing parts over each other their welded connection fixed. Since the pressure plate itself also a thermoplastic Plastic part is and usually has smaller dimensions than one of the two housing parts, it is possible, a housing part and the pressure plate in a common injection mold to manufacture. It is particularly advantageous if unoccupied spaces of the injection molding, not for a housing part be needed as a cavity for the Pressure plate can be used.
Further Details of the invention will be apparent in the drawing with reference to schematic embodiments described. Show it
1 an intake system of an internal combustion engine in a sectional view.
2 in a detailed view, the arrangement of a vibration-damping element.
3 a plan view of a pressure plate.
4 a side view of in 3 shown pressure plate.
This in 1 shown intake system consists of a raw air line, which is shown here only partially, a clean air line 11 , which is also shown only as a short neck, and an air filter housing 12 , In this air filter housing is an air filter element 13 , The incoming air via the unfiltered air line moves according to the arrows shown in phantom 14 upwards, flows through the air filter element 13 , is cleaned there and leaves according to the arrows 15 and 16 over the clean air line 11 the air filter housing.
The housing itself consists of a housing lower part 17 , on which a dust discharge valve 18 is arranged, and a first housing upper part 19 , The connection between the upper part of the housing 19 and housing base 17 takes place in the region of the air filter element 13 by a corresponding shaping of the connection area with the interposition of a seal 20 , Usually, the fixation of the upper housing part takes place 19 with brackets or with screws on the housing base 17 ,
The upper housing part itself can be multi-shelled, this means that it does not consist of a single element, but of a first, openable element that is used to replace the air filter element 13 is required, as well as one or more elements that are not openable, such. B. air guide parts, connecting chambers or resonance chambers. These are also parts of the housing wall.
Usually, such air guide chambers are also made in several parts, ie they have a lower part, which with the lower housing part 17 is made in one piece and they have tops that are welded to the base. Such a shell is in 2 shown. To recognize in this figure in a plan view of the upper housing part 19 , a symmetrical to the upper housing part 19 arranged further upper housing part 21 , as well as one between the two upper housing parts 19 and 21 arranged cover 22 , which closes air ducts. This cover is on the circumferential edge 23 with the lower housing part underneath 17 welded, the welding takes place for example in the vibration welding process. The cover is U-shaped, wherein the two vertical legs are made relatively narrow, the connecting leg, however, has a large surface area.
To avoid resonance vibrations in the region of this surface, it is expedient to stabilize them. At the same time is the cover 22 in this area, however, also a design element which has a specially shaped and shaped surface. Therefore, it is not possible by internal ribs or reinforcements, which lead to visible contours on the surface, especially in thermoplastic material to install. That's why the cover 22 provided on the inside with a metal sheet of a metallic tool, this sheet must of course be fixed. The sheet provides stiffening without affecting the visual appearance of the surface. An immediate attachment of the sheet to this inner wall is not possible, so this is fixed with a pressure plate.
In 3 is in a sectional view according to section AA of 2 this structure is shown. The cover 22 is - as already mentioned - via a welded joint with the lower housing part 17 connected. On the inside of the cover is a damping plate 24 , The thickness of the sheet is 1-2 mm. The sheet metal comes with a pressure plate 25 pressed, this pressure plate has in the region of the damping plate 24 its contour on. The pressure plate is fastened in the area of the welded connection between the cover 22 and housing base 17 in the area 26 and 27 , When mounting the components, first the damping plate 24 on the cover 22 then the pressure plate 25 on the damping plate 24 and then the lower housing part 17 with the cover 22 welded.
By integrating the pressure plate 25 in the welding area 26 . 27 at the same time also a welding of the same, so no additional cher operation is required and the pressure plate reliably the damping plate 24 fixed.
4 shows the pressure plate 25 as an item in the top view.
5 shows this pressure plate in a side view. It can be seen that the welding area is designed in such a way that, on the one hand, it engages in the welding profile of the cover 22 can be integrated or hung there. On the other hand, this area also has welded webs, which are welded to both the cover and the housing base.
4 shows the contour of the damping plate 24 Of course, there is the possibility to provide this with different contours. The contour is expediently adapted to the vibration behavior of the cover plate in order to achieve optimum damping.
As in 5 shown, indicates the pressure plate 25 an air duct 28 it stands in the middle of the air stream as a sword. 2 shows this sword in a dashed line arrangement. The air duct 28 has the task to direct the coming of the two air filter elements air streams and lead to the front area, where they have an in 3 illustrated opening 29 the internal combustion engine are supplied.
Intake system of an internal combustion engine with at least a raw air duct, at least one air filter, which in a Air filter housing consisting of plastic, at least one clean air line, being on at least one housing wall of the air filter housing on, vibrations of the housing wall steaming Element is provided and wherein this element indirectly via a Pressure plate is fixed.
An intake system according to claim 1, wherein the vibrations absorbing Element is a metal plate, which is the contour of the housing area to which it is arranged, adapted or adapted.
Intake system of an internal combustion engine according to claim 2, wherein the pressure plate comprises air guide ribs and / or air ducts.
Intake system of an internal combustion engine after a the previous claims, the housing, at which the vibration damping element is located, or is arranged, at least in two parts and the two parts via welded joints are connectable to each other and wherein the pressure plate is in this weld extends and with the two housing parts welded is.
Intake system of an internal combustion engine wherein the housing more Sandwich structures for improving the acoustic properties having.
Method of manufacturing an intake system of a Internal combustion engine according to claim 1, wherein at least two housing parts in injection molding made of plastic, in the first housing part a damping plate is inserted and then a pressure plate on the damping plate is attached and wherein the pressure plate in the welding of the two housing parts over the welded joint is fixed.
A method of manufacturing according to claim 6, characterized characterized in that the pressure plate and a housing part in a common injection mold is manufactured.
DE200410049791 2004-10-12 2004-10-12 Induction system for internal combustion engine has housing wall vibration damping element on at least one wall of air filter housing Withdrawn DE102004049791A1 (en)
DE200410049791 DE102004049791A1 (en) 2004-10-12 2004-10-12 Induction system for internal combustion engine has housing wall vibration damping element on at least one wall of air filter housing
EP20050107789 EP1647702B1 (en) 2004-10-12 2005-08-25 Intake system for internal combustion engine
DE200550003821 DE502005003821D1 (en) 2004-10-12 2005-08-25 Intake system of an internal combustion engine
AT05107789T AT393310T (en) 2004-10-12 2005-08-25 Intake system of an internal combustion engine
DE102004049791A1 true DE102004049791A1 (en) 2006-04-13
ID=35595490
DE200410049791 Withdrawn DE102004049791A1 (en) 2004-10-12 2004-10-12 Induction system for internal combustion engine has housing wall vibration damping element on at least one wall of air filter housing
DE200550003821 Active DE502005003821D1 (en) 2004-10-12 2005-08-25 Intake system of an internal combustion engine
EP (1) EP1647702B1 (en)
AT (1) AT393310T (en)
DE (2) DE102004049791A1 (en)
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2004-10-12 DE DE200410049791 patent/DE102004049791A1/en not_active Withdrawn
2005-08-25 AT AT05107789T patent/AT393310T/en not_active IP Right Cessation
2005-08-25 DE DE200550003821 patent/DE502005003821D1/en active Active
2005-08-25 EP EP20050107789 patent/EP1647702B1/en not_active Expired - Fee Related
CN104727994B (en) * 2013-12-24 2017-04-12 川崎重工业株式会社 Vehicular air cleaner
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DE502005003821D1 (en) 2008-06-05
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EP1647702A1 (en) 2006-04-19
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