Source: http://www.docstoc.com/documents/legal/patents/lubrication/most-recent
Timestamp: 2015-05-29 18:25:32
Document Index: 340252919

Matched Legal Cases: ['Application No. 2005', 'Application No.54734', 'Application No. 100909', 'Application No. 2007', 'Application No. 2007', 'Application No. 20031008', 'Application No. 2006', 'Application No. 2006']

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Compressor Lubricant System Including Acid Filtration - Patent 8146712
BACKGROUND The present invention relates to a system for extending the useful life of compressor lubricants. More particularly, the present invention relates to an acid-filtered lubricant system for a compressor. Most compressors are either contact cooled or oil-free. Contact cooled compressors are generally defined as compressors that inject a lubricant into the compression chamber to lubricate, remove the heat of compression, and seal the clearancesbetween moving components such as compressor rotors, or the like. Oil-free compressors are generally defined as compressors that separate the air and oil systems, if required, to prevent contamination of the compressed air. In both cases, the air andlubricant must be cooled to remove the heat of compression and heat from friction. In conventional air compressor systems which utilize a contact cooled compressor, air is compressed in a compression chamber or airend (by a set of rotary screws, for example). A lubricant, such as oil, is injected into the compression chamberand mixes with the compressed air. The lubricant is generally injected into the compression chamber for a number of reasons including cooling the air compressor system, lubricating bearings, balancing axial forces and sealing the moving parts. Aftercompression, the lubricant must be removed from the stream of compressed air before the compressed air may be used downstream for pneumatic tools and/or other equipment or applications. While many variations on the separation process have been explored, many compressor units today use a two step separation process. The heavily saturated air/lubricant mix discharged from the airend enters a separator tank and is mechanicallyseparated by means of a centrifugal impingement process on the inside wall of the separator tank and through gravity. Alternatively, a system of baffles may be used to turn the flow one or more times in order to force the lubricant to separate byimpingement on the baffles and/or wall
Lubrication #Tags:
Compressor lubricant system including acid filtration
Thomas E. Vincent
Paul A. Lombardozzi
Application number 11 301-923
BACKGROUND The present invention relates to reservoirs, and more particularly, to fluid reservoirs for use in gas turbine engines. In many gas turbine engines, a fluid reservoir is used to store lubricating oil for engine components. A supply pump attached to a supply passage takes fluid from the fluid reservoir to the engine components, and a scavenge pump attached to ascavenge passage returns the fluid from the engine components to the fluid reservoir. Typically, the scavenge pump returns a quantity of air along with the fluid. When the engine is shut down, the supply pump and scavenge pump also slow down and eventually stop. During the slow down, lubricated, moving components of the enginealso slow down, and the fluid on those components tends to fall to scavenge pick-up locations more quickly. This effect allows the scavenge pump to return more fluid to the fluid reservoir than the supply pump removes from the fluid reservoir during theslow down. Additionally, when a lubrication system is pressurized, the system typically depressurizes during the shut down. This causes compressed air in the scavenge passage to expand, forcing additional fluid to enter the fluid reservoir during andimmediately after shut down. After shut down, any fluid remaining in the scavenge passage eventually settles at the lowest point and the remaining air rises. The scavenge passage tends to hold a relatively large quantity of air leading into the fluid reservoir when it isshut down. When the engine is started up again, the supply pump pumps fluid out of the fluid reservoir. Because the scavenge passage is filled mostly with air at that time, the scavenge pump, essentially, pumps air into the fluid reservoir to replacethe space previously occupied by fluid. When this happens, the fluid level in the fluid reservoir drops, sometimes substantially. This drop in the fluid level is sometimes called "gulp." Fluid reservoirs are typically designed to be large enough tohold enough flui
Paul A. Dickie
Larry W. Spires
Application number 12 233-300
Piston Arrangement - Patent 8136634
The invention relates to a piston arrangement, with which, for example, a metering valve, a flow-rate sensor, or a hydraulic motor can be implemented. For such applications, it is frequently necessary, in the first place, to provide a metering piston, which is suitable for conducting a defined quantity of fluid, and a reversing piston, which creates the back-and-forth movement of the meteringpiston. In particular, for the use of such a piston arrangement for lubricating devices, which are operated partially at very low temperatures, e.g., at -40.degree. C., a piston arrangement should not only be as simple and compact in construction aspossible, but also have long-term operating reliability.SUMMARY OF THE INVENTION In general, a piston arrangement of this invention is provided for metering valves, flow-rate sensors, or hydraulic motors. The piston arrangement comprises a housing, at least one recess in the housing, and a first piston sealed and movable inthe at least one recess of the housing. A recess is provided in the first piston, and a flow passage extends through the first piston. A second piston is movable in the recess of the first piston. A sealing surface is provided on the second piston,and a valve seat is provided on the first piston against which the sealing surface on the second piston can be pressed in such a way that the second piston can be moved in the first piston between a position which opens the flow passage through the firstpiston and a position which shuts off the flow passage through the first piston. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a top view of three metering valves according to the invention, which are arranged on a common manifold; FIG. 2 is a metering valve according to FIG. 1 with manifold in side view; FIG. 3 is a section through a metering valve and the manifold along line A-A in FIG. 1; FIG. 4 is a section through a metering valve and the manifold along line B-B in FIG. 1; FIG. 5 is a flow-rate sensor according to
Paluncic
Zdravko Paluncic
Application number 12 091-842
Multiple Duty Portable Pneumatic Lubrication Device - Patent 8118137
S Not Applicable.STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT Not Applicable.THE NAMES OF THE PARTIES TO A JOINT RESEARCH OR DEVELOPMENT Not Applicable.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to lubrication devices or grease guns and particularly to a multiple duty portable pneumatic lubrication device or grease gun which comprises a portable housing having a carrying handle, which housing closes fortransporting and opens for use to access a retractable hose having a hand held grease gun comprising a quick change coupler for installing a desired grease fitting on the outer end and a power and grease actuator lever spaced apart from the greasefitting by a length of hose, the hand held grease gun hose reeled out of the housing for use and automatically rewound into the housing for transportation or storage, a mechanical pump or compressor with an electric motor for pumping the grease, apressure regulator, two or more replaceable or refillable grease cartridges or tubes which are dispensed using a common grease funnel connected to the grease hose wound about a retractable grease hose reel. 2. Description of Related Art Including Information Disclosed Under 37 CFR 1.97 and 1.98 Hand-held battery operated grease guns are useful in many situations, especially for those who are not working in a shop, such as traveling vehicle maintenance personnel, farmers, or vehicle owners who wish to lubricate their own vehicles. Theportable grease guns available in the market are supplied with a single replaceable and disposable cartridge. A spring biased plunger discharges the grease from the cartridge into an area where a manually operated mechanism will force the grease througha discharge nozzle. U.S. Pat. No. 3,987,869, issued Oct. 26, 1976 to Bowers, provides a lubrication system including a base with shoulder straps. A motor pressurizes grease received from cylinders having spring urged pistons. The pressuriz
Multiple duty portable pneumatic lubrication device
Application number 12 234-638
Electric Motor Driven Lubrication Pump Control System And Method That Accomodates Turbomachine Windmill Operation - Patent 8113317
The present invention relates to turbomachine lubrication and, more particularly, to a system and method for controlling an electric motor driven lubrication supply pump during windmill operation of a turbomachine.BACKGROUND Most aircraft generate electrical power via the main engines, which also provide the propulsion thrust. Many aircraft also include an additional turbine engine, known as an auxiliary power unit, which may be used as a backup or supplementalelectrical power source, when the aircraft is in flight or on the ground. Some aircraft additionally include a ram air turbine to accommodate the unlikely, yet postulated, complete loss of other power generating sources. Although ram air turbines aremost typically found in military aircraft, where such a postulated event may be more likely, many non-military aircraft also include ram air turbines. A ram air turbine is typically disposed within the aircraft fuselage in a stowed position, and is moved to a deployed position, external of the aircraft fuselage, when needed to supply electrical, hydraulic, and/or pneumatic power. A ram airturbine may include a propeller, or other suitable device, coupled to a generator, a mechanical shaft, and/or other device. When the ram air turbine is moved to the deployed position, ram air flow past the propeller causes the propeller to rotate, whichin turn drives the generator, mechanical shaft, and/or other device to supply electrical, hydraulic, and/or pneumatic power. In some aircraft configurations, one or more turbomachine inlets are in fluid communication with the ram air turbine flow path. Thus, when the ram air turbine is deployed, some ram air flow is supplied to the turbomachine inlet(s). Dependingon the flow rate of the ram air to the turbomachine inlet(s), the turbomachine(s) may be driven by the ram air flow in a "windmilling" operational condition. Moreover, in some aircraft configurations, a non-operating turbomachine may receive air flowfrom sources ot
Jim E. Delaloye
Application number 11 774-083
Fluid Reaction Surfaces (I.E. Impellers)
Lubricating Structure For Static Hydraulic Continuously Variable Transmission - Patent 8109366
S This nonprovisional application claims priority under 35 U.S.C. .sctn.119(a) on Patent Application No. 2005-037265, filed in Japan on Feb. 15, 2005, the entirety of which is incorporated herein by reference.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lubricating structure for a static hydraulic continuously variable transmission. More particularly, the present invention relates to a structure of an oil path for ejecting lubricant oil from a shaft of thetransmission to a rotary sliding part such as a slant plate within the static hydraulic continuously variable transmission. 2. Description of Background Art In the background art static hydraulic continuously variable transmission, there were provided a plurality of diametrical lubricant oil ejection holes directed from the central oil path of the shaft of the transmission axially formed at thecenter of the shaft of the transmission toward the outer circumference of the shaft of the transmission in order to eject lubricant oil from the shaft of the transmission to a rotary sliding part such as a slant plate (see Japanese Application No.54734/2002 (FIG. 2), and Japanese Application No. 100909/1997 (reference numeral 77 in FIG. 2), for example). The lubricant oil ejection hole is a hole having a relatively small diameter. As described above, the arrangement of a plurality of holes ofsmall diameter at a thick-wall part of the shaft of the transmission caused its productivity to be reduced. Therefore, a fine diameter hole could not be attained and more than the required oil was supplied. In addition, even if a hole of fine diametercould be machined, the number of holes that feed oil to an appropriate location needed to be increased. This was not preferable due to the necessity of increasing a volume of the oil pump.SUMMARY OF THE INVENTION The present invention provides a structure of a lubricant oil ejection oil path having a high degree of freedom of the lubricant
Lubricating structure for static hydraulic continuously variable transmission
Toshimasa Mitsubori
Application number 11 352-351
Portable Self-contained Fluid System - Patent 8109364
1. Technical Field The present invention relates to a portable, self-contained, fluid system. 2. Description of Related Art Fluid changing systems are known in the art consisting of a pump and a bucket using a tube to pull oil from an engine. These systems are bulky, top heavy, easy to spill, difficult to empty.SUMMARY OF THE INVENTION The present invention provides a new and unique portable, self-contained, fluid system. The portable, self-contained, fluid changing system may be used as a fluid changing device for changing one or more types of fluids such as oil or anothersuitable fluid in a container of a boat, recreational vehicle (RV), automobile or other suitable military, agricultural or industrial device. Alternatively, portable, self-contained, fluid system may also be used for providing fluid such as water orother suitable fluid for cleaning or showering. In one embodiment, the portable, self-contained, fluid changing system includes a reservoir having an inlet port for receiving and holding fluid that is being removed from the container of the boat, recreational vehicle (RV), automobile or othersuitable military, agricultural or industrial device; in combination with an electric pump affixed to the reservoir, having a pump inlet for receiving and coupling a pump discharge hose thereto that transfers the fluid from the container to the pump, andalso having a connecting device for coupling a pump outlet to the input port of the reservoir for transferring the fluid from the pump to the reservoir. The electric pump may take the form of a suitable positive displacement pump, such as a self-priming, dry run pump, a diaphragm pump, a flexible impeller pump (FIP), a rotary vain pump, a rotary gear pump, etc. having an on/off switch to makethe pumping process easy. The electric pump may be powered by a suitable power source, such as a 12-24 volt car battery or the like, and may include a switch for turning the pump on/off. The pump may also have leads with
Portable self-contained fluid system
Derrick Thanh Tran
Application number 11 292-316
Engine Supercharger Lubricating Apparatus - Patent 8109365
S This application claims priority to Japanese Patent Application No. 2007-124316, filed on May 9, 2007. The entire disclosure of Japanese Patent Application No. 2007-124316 is hereby incorporated herein by reference.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention generally relates to an engine supercharger lubricating apparatus for lubricating a supercharger. 2. Background Information Some internal combustion engines are provided with a supercharger, e.g., a turbocharger, having a rotary shaft. In the case of a turbocharger, for example, the rotary shaft connects a compressor and a turbine together. A lubricating apparatusis provided which has a suction device for drawing in lubricating oil to lubricate the rotary shaft and discharge the lubricating oil into an oil pan of the engine. One example of such a lubricating apparatus is disclosed in Japanese Laid-Open PatentPublication No. 8-158876. The lubricating apparatus disclosed in this publication is provided with an oil passage for returning the lubricating oil to the oil pan after the lubricating oil has been supplied to the rotary shaft of the turbocharger. In view of the above, it will be apparent to those skilled in the art from this disclosure that there exists a need for an improved engine supercharger lubricating apparatus. This invention addresses this need in the art as well as other needs,which will become apparent to those skilled in the art from this disclosure.SUMMARY OF THE INVENTION It has been discovered that with the lubricating apparatus presented in Japanese Laid-Open Patent Publication No. 8-158876, it is difficult to lubricate the supercharger in a satisfactory manner by controlling the operating state of a vacuumpump. Thus, when the amount of lubricating oil drawn by the vacuum pump is small, excess lubricating oil accumulates in the supercharger. Thus, there is a possibility that lubricating oil will leak into the compressor and the turbine. Conversely,
Engine supercharger lubricating apparatus
Arata Taguchi
Hidetsugu Komatsu
Application number 12 061-039
Oil Module For An Internal Combustion Engine - Patent 8104581
This invention relates to an oil module for an internal combustion engine, comprising a carrier element that can be flanged onto an engine block of the internal combustion engine and carries at least one oil filter and an oil cooler. Said oilmodule is provided with channels for guiding oil and water, one of said channels being an oil cooler bypass channel connecting an oil inlet of the oil cooler to an oil outlet of the oil cooler. An oil module of the above mentioned type is known from EP 0 816 645 B1. For this known oil module, it is provided that a bypass channel extending exclusively within the carrier element is integrated in said carrier element for a throttledbypass to the oil guidance through the oil cooler. This bypass ensures that, in case of cold and thus viscous oil, a relatively large part of the oil will flow--bypassing the oil cooler--to the lubricating points of the internal combustion engine toensure adequate lubrication even when the lubricating oil is still cold. With an increasing temperature of the lubricating oil, an increasingly larger portion of the oil flows through the oil cooler, thus reducing the temperature of the oil to preventthermal damage of the oil of the internal combustion engine due to excessively high oil temperatures. Particularly in the automotive industry, there is a general endeavor to be able to produce different designs of an internal combustion engine in a modular manner. The maximum possible identical components are thus to be used for differentdesigns of the internal combustion engine. The internal combustion engines will then differ e.g. by one design having a turbocharger and another design having no turbocharger. In their different versions, the internal combustion engines usually differin performance with the consequence that there will be different requirements regarding the oil module and the oil cooler provided therein depending on the design of the internal combustion engine. These different requirement
Oil module for an internal combustion engine
Gendermann
Application number 10 573-119
This is the U.S. National Stage ofInternational Application No. PCT/FI2004/000393, filed on Jun. 28, 2004, which relies for priority upon Finnish Application No. 20031008, filed Jul. 3, 2003, the contents of both of which are incorporated herein by reference in their entireties.BACKGROUND OF THE INVENTION The invention relates to an arrangement in connection with a central lubrication system according to the preamble of claim 1, the arrangement comprising a lubricant vessel, a pump unit, a control unit, pipe systems, a pressure monitor unit, atleast one feeder provided with at least one piston which moves due to the influence of the pressure of a lubricant present in the pipe system/object to be lubricated, and a movement monitor unit for each feeder in order to monitor the operation of thesystem, the lubricant being arranged to be pumped from the lubricant vessel along the pipe systems to the feeders and further to the objects to be lubricated, and a junction part located in the movement monitor unit outside a pressurized space. Typically, conventional central lubrication systems known in the art include a lubricant vessel, a pump unit, an electric control unit, pipe systems, lubricant feeders and movement monitor units. The movement monitor units are conventionallyused for monitoring movement of the piston of a feeder, and for controlling the operation of the system. In order to detect movement of the piston, the movement monitor unit comprises a switch. In the prior art, the switch is a magnetic switch toswitch and release at a predetermined strength of a magnetic field, the field strengths of a switching point and a releasing point being different in magnitude, i.e. the switch involves hysteresis. Bodies of feeders are manufactured both from amagnetable (galvanized) and non-magnetable (acid-proof) material so that the body affects a change in the magnetic field caused by the piston, and thus the aforementioned operating points. In order to work well, su
Arrangement in connection with central lubrication system
Application number 10 563-135
Oil Flow Passage Arrangement Of Automatic Transmission - Patent 8100229
1. Field of the Invention The present invention relates in general to an automotive transmission and more particularly to an oil flow passage arrangement that feeds a given part of the transmission with a lubricating oil or a hydraulic fluid. 2. Description of the Related Art In order to clarify the present invention, known oil flow passage arrangements of an automatic transmission will be described briefly in the following, which are disclosed in Japanese Laid-open Patent Applications (Tokkaihei) 10-205609 and8-303560. The oil flow passage arrangements disclosed in the published applications are of a type that comprises generally an oil flow passage that is defined in a casing of the transmission and an oil flow passage that is defined in a separate pipemember that is connected to the oil flow passage of the casing. In the oil flow passage arrangement of the published application 10-205609, the separate pipe member has a leading end that is located near a moving part (viz., a transmission belt ofbelt-type continuously variable transmission) and equipped with a nozzle (or orifice). Under operation of the transmission, a pressurized lubricating oil is ejected from the nozzle to the moving part to lubricate the same. In the oil flow passagearrangement of the other published application 8-303560, the separate pipe member has one end portion that is actually received in the oil flow passage defined in the transmission casing. The end portion of the pipe member is formed with an orificethrough which a pressurized lubricating oil is led into the oil flow passage of the casing and ejected to moving parts (viz., bearings) through respective branch passages.SUMMARY OF THE INVENTION In the above-mentioned oil flow passage arrangements, the pipe member that defines therein another oil flow passage serves also as an orifice member. Thus, there is no need of preparing a separate orifice member (such as an orifice plug or thelike) that is to be connected to the pipe membe
Oil flow passage arrangement of automatic transmission
Tsutomu Saitou
Application number 11 086-405
Gearbox Lubrication Supply System For A Tip Engine - Patent 8083030
Gearbox lubrication supply system for a tip engine
Lawrence E. Portlock
Application number 11 718-521
Remotely Activated Masthead Sheave Lubricator Apparatus And Method - Patent 8083031
BRIEF DESCRIPTION The subject of this invention relates to sailing vessels. Specifically, the disclosed invention presents an apparatus and method for use that may be used to lubricate the sheaves present at the head of a mast of a sailing vessel without theneed for a crewmember to ascend the mast, thereby eliminating the risk and expense associated with such activity.BACKGROUND OF THE INVENTION Sailing vessels have existed for centuries. While modern sailing vessels have taken advantage of the progress made in materials and methods science, the fundamental operation of a sailing vessel remains the same. That is, depending on windconditions and direction, a sail or sails must be raised, lowered, or trimmed to optimize the performance of the craft. Modernly, as in historical times, sails are raised and lowered via a system of pulleys or sheaves. For clarity, a pulley is a stand alone device comprised of a housing and a sheave. The sheave is the grooved wheel that a line, or halyardpasses across during sail raising/lowering operations. These sheaves are subjected to weather and wear and, as a result, must be lubricated from time to time. Contemporary sailing vessels use a combination of pulleys and sheaves that have been integrated into the structure of the vessel. For example, at the head of a mast on a modern sailing vessel there will be one or more sheaves permanentlyaffixed to the inside of the mast. Halyards are run from the deck through the interior of the mast to the sheave, and then hence to the working load, for example, a sail. To protect the working sheaves at the head of the mast from weather, a mastheadhousing of one form or another is used. This housing serves several purposes, including acting as a mount for instrumentation. For purposes of the present invention, it is only noted here that such a housing does exist. Since the sheave or sheaves at the masthead are mounted inside the mast cavity and are covered by a housing, and since they are
Remotely activated masthead sheave lubricator apparatus and method
Jonathan E. Ganz
Application number 12 653-255
Transmission - Patent 8079445
CROSS-REFERENCE TO RELATEDAPPLICATIONS This application claims priority to Japanese Patent Application No. 2006-021558, filed on Jan. 30, 2006. The entire disclosure of Japanese Patent Application No. 2006-021558 is hereby incorporated herein by reference.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmission. More specifically, the present invention relates to a transmission in which a clutch gear is disposed in such a way as to be embedded in a side surface of a variable speed gear that rotatesfreely on a rotating shaft. 2. Background Information Various types of transmissions are presently known. One example of a conventional variable speed transmission is disclosed in Japanese Unexamined Patent Application Publication No. 3035997. In this type of conventional transmission, a variablespeed transmission is provided with a rotating shaft having a variable speed gear mounted on the rotating shaft to be selectively coupled either in a fixed state or a freely rotatable state. In particular, a coupling sleeve is provided on the rotatingshaft with the coupling sleeve being moved in an axial direction into meshing engagement with a clutch gear that is embedded in a variable speed gear so that the variable speed gear rotates with the rotating shaft. When the coupling sleeve is disengagedfrom the clutch gear, the variable speed gear rotates freely on the rotating shaft. With this type of conventional transmission, the overall axial length of the transmission is shortened as a result of the clutch gear being embedded in the side surfaceof the variable speed gear. In view of the above, it will be apparent to those skilled in the art from this disclosure that there exists a need for an improved transmission. This invention addresses this need in the art as well as other needs, which will become apparentto those skilled in the art from this disclosure.SUMMARY OF THE INVENTION Incidentally, it has been determined that wi
Yasuhiro Sawaki
Application number 11 623-567
Method And Apparatus For Maintaining Oil Pressure - Patent 8061484
The present invention relates to maintaining oil pressure, and, more particularly, to maintaining oil pressure via an oil pump.BACKGROUND OF THE INVENTION A large percentage of motor vehicles employ wet-sump engine lubrication systems where a fluid pump is positioned to draw oil from an engine oil sump in order to provide circulation of pressurized oil throughout the engine. To that end, thefluid pump generally employs an oil pick-up tube that is submerged in the sump oil, intended to provide continuous supply of oil to the engine. Vehicles employing wet-sump engine lubrication are sometimes used in racing. During a racing event, a vehicle may be called upon to perform various aggressive maneuvers, such as cornering, acceleration and braking, that may generate highg-forces. High g-forces encountered in racing, at times, may be sufficient to transfer engine oil from its usual distribution at the bottom of the sump to being concentrated in corners or near walls of the sump. Such transfer of sump oil may uncoverthe oil pick-up tube, which may lead the oil pump to ingest air and interrupt supply of oil to the pump. Ingestion of air by the pump pick-up tube may, in turn, lead to a significant drop in oil pressure provided to the engine.SUMMARY OF THE INVENTION In view of the foregoing, an oil pump system is provided having a mechanism configured to receive oil, pressurize the oil, and output the pressurized oil. The oil pump system also includes an oil pump body configured to house the pumpmechanism. A vent is defined by the oil pump body to purge air from the pump mechanism. Also, a device is arranged relative to the vent, and configured to close the vent when the pump body is subjected to g-forces up to a first predetermined thresholdmagnitude. The device is additionally configured to open the vent when the pump body is subjected to g-forces exceeding the first predetermined threshold magnitude, wherein air otherwise received by the pump mechanism with the oi
Method and apparatus for maintaining oil pressure
Application number 12 416-992