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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Borg-Warner Automotive, Inc. Patents
Assignee:
Borg-Warner Automotive, Inc.
Address:
Troy, MI
No. of patents:
324
Patents:


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Patent Number Title Of Patent Date Issued
6544138 Electro-hydraulic module for automatic transmission control April 8, 2003
A control module for a vehicle transmission. The control module includes an electronic transmission control unit attached to a cooling plate. Control solenoids are attached to the cooling plate. The cooling plate is operably secured over a "worm trail" manifold in a transmission for cont
6516835 Electromechanically controlled refueling valve February 11, 2003
An electronic onboard refueling vapor recovery (ORVR) system including an electrically operated ORVR valve that selectively opens and closes a fuel vapor path between a fuel tank and a collection canister. An electronic control circuit generates control signals to selectively open and cl
6406390 Continuously variable belt drive system June 18, 2002
A belt-type continuously variable transfer system (15) includes a driving pulley assembly (20), a driven pulley assembly (22) and a V-shaped belt (24) engaged to transfer rotary power therebetween. The driven pulley assembly (22) can include a ratio adjustment mechanism (46) that adjusts
6106425 Single assembly phased chain August 22, 2000
A chain and sprocket system includes a plurality of chain assemblies and phased or offset sprockets. The individual chain assemblies are interconnected by a retention bracket to form a single composite chain assembly.
6068237 Proportional variable bleed solenoid valve with single adjustment pressure calibration May 30, 2000
A proportional variable bleed solenoid valve that includes magnetic force adjustments to provide magnetic calibration. The control valve includes a housing defining a chamber, where an electromagnetic coil is wound on a bobbin and is coaxially mounted within the housing. A movable armatu
6062362 Ratchet one-way clutch with stator May 16, 2000
A ratchet-type one-way clutch mechanism. The mechanism has an inner race member with a plurality of notches, an outer stator member with a plurality of pockets, a plurality of pawl members positioned in the pockets for engagement with the notches, and spring biasing members for biasi
6062361 Acceleration sensitive double overrunning clutch May 16, 2000
An acceleration sensitive double overrunning clutch is directionally preset by a change in speed, i.e., acceleration, rather than relative rotation. The clutch is especially adapted for use in power transmission devices such as motor vehicle transfer cases. The clutch includes a pluralit
6062330 On demand vehicle drive system May 16, 2000
An on demand venicle drive system monitors vehicle performance and operating conditions and controls torque delivery to the vehicle wheels. The system includes a plurality of speed and position sensors, a transfer case having primary and secondary output shafts driving primary and se
6058963 Vehicle refueling valve May 9, 2000
A refueling valve for a motor vehicle includes a body connected to the upper wall of a fuel tank in vertical depending relationship. The body has a cover with a vapor exit passage adapted to be connected to a fuel vapor storage canister and a portion depending from the cover that has a v
6056908 Integrated transmission control system May 2, 2000
A method for forming an integrated solenoid circuit system for a motor vehicle transmission. The method includes the steps of providing a solenoid sensor for sensing vehicle transmission states, and a manifold for powering the solenoid sensor, fabricating an electronic circuit to sel
6056098 Viscous fluid coupling and improved valve assembly therefor May 2, 2000
A fluid coupling device is disclosed of the type having an output coupling assembly (13) and an input coupling member (11). Control of the flow of viscous fluid between a reservoir chamber (35) and an operating chamber (33) is by rotation of a valve arm (43), to cover or uncover a fill
6053831 Hydraulic tensioner with passage of variable cross-section between the piston and bore April 25, 2000
A hydraulic chain tensioner has a fluid leakage passageway along the outside of the piston surface that has a variable cross-section. The tensioner has a tapered or stepped geometry in either the bore of the tensioner or in the piston or both the bore and the piston. Due to the uniqu
6033334 Transfer case having speed proportional clutch March 7, 2000
A transfer case having a mechanically parallel overrunning clutch and centrifugal, speed proportional clutch provides improved handling characteristics especially in off-throttle driving conditions. The transfer case includes a one-way or overrunning clutch which provides drive from
6029703 Pressure solenoid control valve with flux shunt February 29, 2000
A solenoid control valve (10) that includes an electromagnetic coil (30) positioned within a housing (16) and a spool valve (72) positioned within a central bore (70) of a valve body (20). An armature (40) is axially positioned within the coil (30) and an armature spring (52) biases the
6026853 Fuel tank filler neck check valve February 22, 2000
The present invention provides a check valve including a seal door which is normally spring biased towards a closed position but which is responsive to a flow of fuel for displacing to an open position to allow fuel to pass in a first direction and for thereafter preventing passage of li
6001750 Fibrous lining material comprising a primary layer having less fibrillated aramid fibers, carbon December 14, 1999
The present invention relates to a fibrous base material comprising a primary layer of less fibrillated aramid fibers, carbon particles, carbon fibers, phenolic novoloid fibers, and at least one filler material, optionally cotton fibers, and a secondary layer of carbon particles on at
6000510 Functionally enhanced hydrokinetic device having clutch assembly operable at low engine speeds December 14, 1999
A torque converter for translating kinetic energy between a prime mover and a transmission including a torque input member and an impeller assembly operatively coupled for rotation with the torque input member. A turbine assembly is fluidly connected in driven relationship with the impel
6000488 Motor vehicle transfer case December 14, 1999
An on demand vehicle drive system monitors vehicle performance and operating conditions and controls torque delivery to the vehicle wheels. The system includes a plurality of speed and position sensors, a transfer case having primary and secondary output shafts driving primary and se
5993345 Compression fixed ratio chain November 30, 1999
A power transmission system for transmitting power between a plurality of toothed sprockets mounted on rotating members. The system includes a chain comprising a plurality of transverse elements arranged in an endless loop and maintained in a stack by a plurality of endless carriers rece
5993342 Hydraulic tensioner with force limiting tensioner spring November 30, 1999
A hydraulic tensioner having a pre-loaded spring at the upper end of the piston to reduce the peak operating loads in a timing chain system. The spring member is located between the primary piston and an upper secondary piston.
5993341 Hydraulic tensioner with a position actuated check valve assembly November 30, 1999
A hydraulic tensioner includes a check valve having a disc and stem, a slip mechanism, an anchoring piece, a stripper, and a disc seat. The check valve assembly is actuated from the position of a tensioner piston, so there is a high response.
5992592 Bi-directional overrunning clutch assembly for transfer cases and the like November 30, 1999
An active multi-mode overrunning clutch assembly includes concentric inner and outer members and a plurality of opposed pairs of clutch pawls operably disposed between the members. The clutch pawls are biased radially outwardly and include recessed portions and raised lands which coo
5992441 Fuel vapor vent valve November 30, 1999
A fuel vapor vent valve for a motor vehicle is connected to an upper wall of a fuel tank in vertically depending relationship. The valve has a cover with a vapor exit passage connected to a fuel vapor storage canister and a body depending from the cover. One embodiment has a vapor exit p
5992370 Short runner valve shaft biasing assembly November 30, 1999
A three plenum air distribution manifold for intake air to internal combustion engine with long, narrow runners leading from first and second spaced side plenums for delivery of air and recirculating exhaust gases into corresponding combustion chambers of the engine. One end of the s
5989139 Hydraulic tensioner with external rack November 23, 1999
A hydraulic tensioner having a rack and ratchet system that provides a no-return function, limits maximum piston travel outward from the housing, and retains the piston in place for shipping. The rack and ratchet system includes a ratchet clip with flexible tabs and a plurality of groove
5984821 Transfer case with four-wheel underdrive operating mode November 16, 1999
A transfer case for a four-wheel drive vehicle includes a center differential which provides a direct output in two-wheel drive and a slightly reduced speed output in four-wheel drive. In two-wheel drive, the outputs of the center differential are locked together by a clutch collar a
5980415 Adaptive transfer case with EM clutch and dog clutch for 4WD lock up November 9, 1999
An adaptive torque control and distribution system for a motor vehicle having a transfer case, primary driveline and drive wheels and secondary driveline and drive wheels for operation in extreme off road conditions such as sand. The transfer case includes a modulating clutch and a locku
5980406 Sprocket assembly for a phased chain system November 9, 1999
A chain and sprocket system includes a plurality of chains and sprockets. The system includes a central shaft, two chains, and two identical sprockets. Although the two sprockets have identical size, shape, and features, they can be assembled onto the central shaft in different orien
5975116 Valve having multi-piece valve housing November 2, 1999
A vent valve for a gasoline tank has a multi-piece valve housing that is inserted into the tank through a tank wall opening. The housing includes a valve member and a cap member that has a flange that is ultrasonically welded to the gasoline tank and a coupling skirt that has minimal
5971122 Ratchet one-way clutch assembly unit with wide biasing springs October 26, 1999
A ratchet one-way clutch assembly with wide biasing springs. The assembly has an inner race with a plurality of notches, an outer race with a plurality of pockets, and a plurality of pawl members positioned in the pockets for engagement with the notches. Spring members which extend the
5967921 Hydraulic chain tensioner with molded plastic body October 19, 1999
A hydraulic tensioner is designed for low cost and ease of manufacturing. A housing has a bore and a sleeve member received within the bore. A piston is slidably received within the sleeve member, forming a high pressure fluid chamber with the sleeve member. The housing can be constructe
5967920 Hydraulic tensioner with a bore cup October 19, 1999
A hydraulic tensioner is designed for low cost and ease of manufacturing. A piston housing has a bore and a bore cup member received within the bore. A piston is slidably received within the bore cup member, forming a high pressure fluid chamber with the bore cup member. The piston housi
5966999 Dual clutch differential configuration October 19, 1999
A modulating clutch for disposition and use in a motor vehicle drive train includes a disc pack clutch assembly and clutch actuator. The clutch actuator includes an assembly for generating compressive force which is applied to the clutch pack assembly and a preload member which partially
5966581 Method of forming by cold worked powdered metal forged parts October 12, 1999
A method for manufacturing metal by a cold worked powdered metal forging process is disclosed. A certain amount of a powdered metal is measured out and then compacted into a briquette or other compact. The briquette is then sintered to form a preform. After sintering, the preform is then
5960819 Valve having multi-part valve housing October 5, 1999
A vent valve for a gasoline tank has a multi-piece valve housing that is inserted into the tank through a tank wall opening. The multi-piece housing includes a valve member of acetal resin and a cap member of high density polyethylene (HDPE) that has a flange that is ultrasonically w
5958507 Carbon deposit friction lining material September 28, 1999
The present invention relates to a friction material comprising a fibrous base material primary layer of less fibrillated aramid fibers, synthetic graphite and at least one filler material, and a secondary layer of a mixture of carbon particles and at least one retention aid coated on at
5957161 Long stroke balanced solenoid September 28, 1999
A solenoid operated control valve (10) including a housing (16) that defines an internal chamber (34) therein, where an electromagnetic coil (44) is coaxially mounted within the internal chamber (34). A tubular shaped movable armature (60) is positioned within the internal chamber (3
5954608 Drive speed control system utilizing inflatable bladders September 21, 1999
A drive speed control system having an input shaft and an output shaft in communication with a planetary gear mechanism. The planetary gear mechanism is in communication with a first rotatable drum member and a second rotatable drum member which is positioned radially inward relative
5954174 Ratchet one-way clutch assembly September 21, 1999
A ratchet one-way clutch assembly is disclosed. The assembly has an inner race with a plurality of notches, an outer race with a plurality of pockets, and a plurality of pawl members positioned in the pockets for engagement with the notches. The pawl members have a pivot ridge which
5954150 Motor vehicle drive line clutch September 21, 1999
An on demand vehicle drive system monitors vehicle performance and operating conditions and controls torque delivery to the vehicle wheels. The system includes a plurality of speed and position sensors, a transfer case having primary and secondary output shafts driving primary and se
5951423 Mechanical friction tensioner September 14, 1999
A mechanical friction tensioner for power transmission chains, such as engine timing chains. The tensioner provides the advantages of a conventional hydraulic tensioner, but eliminates the hydraulic pressure system by use of spring loaded wedge-shaped blocks and friction damping. The
5947245 Combined stator and ratchet clutch assembly September 7, 1999
A ratchet one-way clutch assembly is disclosed. The assembly has an inner member, such as a race or shaft member, with a plurality of notches, an outer member, such as a race, stator or reactor member, with a plurality of pockets, and a plurality of pawl members positioned in the pockets
5943911 Electromechanical friction clutch control for a manual transmission August 31, 1999
A friction clutch assembly in an automotive vehicle transmission is located between an engine-driven input shaft and a torque input shaft for a multiple ratio transmission. A clutch spring normally applies a clutch engaging force to the clutch assembly, thus establishing a torque flow
5938554 Roller chain link plate profile August 17, 1999
A link plate for a roller chain has material added to the location on the link plate face where fatigue failure is most likely to occur in order to increase the fatigue strength of the link plate. This location is within a sector defined by a line extending radially from the aperture cen
5934435 Disc assembly August 10, 1999
A disc assembly for use in, for example, an automatic transmission is disclosed. The disc assembly includes a pair of spaced core members (15-16, 25-26, 36-37, 56-57). A friction facing (17-18, 27-28, 42-43, 62, 77-78) is positioned on the outer side of at least one of said core memb
5915513 Clutch with magneto-rheological operator for transfer cases and the like June 29, 1999
A multiple disc clutch pack includes a pilot magneto-rheological operator which controls operation of an associated ball ramp operator which, in turn, compresses a clutch pack to selectively transfer torque between and input member and an output member. The pilot operator includes an
5901826 Clutch pressure plate with backing plate May 11, 1999
A friction clutch having a friction plate and a pressure plate located within the friction clutch housing. The friction clutch has a backing plate that is positioned between the friction plate and the pressure plate with the backing plate being made from a harder material, such as steel,
5897737 Method for making a core plate having multiple friction material segments April 27, 1999
A method for making a core plate (42) having multiple friction material segments (54) on the surface where the method includes the use of a die (24). Friction material (34) is first trimmed to conform to die (24) and is then fed into die (24). Die (24) then cuts friction material (34) to
5885179 Hydraulic tensioner with grooved reservoir cover March 23, 1999
A hydraulic tensioner that uses a dimpled or grooved section in the cover plate to provide lubrication without the loss of oil pressure. The dimple directs a jet or spray of oil onto the chain as it runs by the tensioner. The cover plate also includes a depression, which extends down int
5884738 Clutch assembly having reaction force circuit March 23, 1999
A clutch assembly for disposition in a motor vehicle drive line includes an internal reaction force circuit. The clutch assembly includes a multiple disc friction clutch disposed adjacent an operator assembly which selectively applies force to the friction clutch to selectively transfer
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