Class / Patent application number | Description | Number of patent applications / Date published |
475160000 | For differential planetary gearing | 64 |
20080220924 | Vehicle planetary gear device - A vehicle planetary gear device includes a ring gear, a sun gear, and a carrier, and pinions housed in the carrier. A penetration hole formed in a hollow cylindrical portion of the carrier has two inner wall surfaces that face an outer peripheral surface of a pinion. One of the inner wall surfaces has a curvature radius larger than the radius of the pinion, and has a curvature center that is apart from the radius center of the pinion gear. The pinion is disposed with respect to the carrier with a predetermined space formed between the one of the inner wall surfaces and the outer peripheral surface of the pinion, and thereby slides along a radial direction of the carrier. | 09-11-2008 |
20080261742 | LIMITED SLIP DIFFERENTIAL AND MANUFACTURING METHOD FOR LIMITED SLIP DIFFERENTIAL - A plurality of microscopic grooves are created on the surface of the teeth of planetary gears, and thus, irregular unevenness is created. This irregular unevenness includes a plurality of first microscopic grooves which function as lubricant grooves and a plurality of second microscopic grooves which are shallower than the first microscopic grooves. | 10-23-2008 |
20080268997 | Lubrication path in a planetary gear unit for a transmission - A planetary gear unit includes a sun gear supported for rotation about an axis and including gear teeth, and a pinion supported for rotation, including pinion teeth engaged with the sun gear teeth and formed with a first passage located between consecutive teeth of the pinion and directed radially toward the engagement of the sun gear and the pinion. | 10-30-2008 |
20090023531 | METHOD AND APPARATUS FOR LUBRICATING A DIFFERENTIAL IN AN AXLE ASSEMBLY - A method for lubricating an axle assembly can include: coupling a pair of bearing to opposite ends of a differential housing; placing the differential housing into a carrier housing assembly such that the bearings support the differential housing on the carrier housing assembly for rotation about a first axis; collecting a lubricant proximate a side of one of the bearings opposite the differential housing; and rotating the differential housing about the first axis to cause the one of the bearings to move a portion of the collected lubricant through the differential housing. A related axle assembly is also provided. | 01-22-2009 |
20090131210 | DIFFERENTIAL GEAR UNIT FOR MOTOR VEHICLES COMPRISING AN ACTIVE CONTROL MECHANISM FOR THE DRIVING FORCE DISTRIBUTION - A differential gear unit for motor vehicles comprises a housing and, therein, a differential gear mechanism, two coaxial gear mechanisms and two controllable friction clutches, the coaxial gear mechanisms transmitting an additional torque to one or other axle shaft according to the degree of engagement of the friction clutches. In order for it also to be possible for very high forces to be absorbed in long-term operation with very low installation space and wear, the coaxial gear mechanisms have in each case one internal gear which is connected fixedly in terms of rotation to one side of the associated friction clutch, and one sun gear which is connected fixedly in terms of rotation to the respective output element, and the second element of each coaxial gear mechanism is a sun gear, and a third element is configured as an annular gear which has an external toothing system which meshes with the first element and an internal toothing system which meshes with the second element. | 05-21-2009 |
20090143183 | DIFFERENTIAL GEAR SET IN WHICH LUBRICATION STRUCTURE IS IMPROVED - A differential gear set includes a pinion gear that at least a groove having a inner planar surface, at least a gear is formed in an exterior circumference thereof and at least a pinion shaft in which an end portion is inserted into the groove such that an end surface faces the inner surface of the groove and a planar portion is formed by cutting off in one side of an exterior circumference thereof corresponding to the interior circumference of the groove. | 06-04-2009 |
20090176614 | Differential assembly with oil deflector shield - An axle assembly that includes a housing assembly, a lubricant and a differential assembly. The housing assembly defines a differential cavity with a lubricant sump into which the liquid lubricant is received. The differential assembly is mounted in the differential cavity for rotation about a rotational axis and includes a differential case, a ring gear, a gear set and an oil shield. The differential case has a body, which defines a gear cavity into which the gear set is received, and a flange that is coupled to the body and includes a flange face. The ring gear is coupled to the flange. The oil shield is coupled for rotation to the differential case and covers a least a radially outward portion of the circumferentially discontinuous features so that they do not directly contact the liquid lubricant in the lubricant sump when the differential assembly rotates about the rotational axis. | 07-09-2009 |
20090186737 | Power transmission apparatus - A power transmission apparatus is capable of easily passing lubricant toward a seal arranged between a higher shat and an opening of a case of the apparatus. The apparatus includes the higher shaft, i.e., a hollow connecting shaft that faces the outside of the transfer case through the opening of the transfer case. The oil seal is arranged between the hollow shaft and the opening of the transfer case. The hollow shaft meshes, through helical spur gears, with an intermediate transferring shaft that is positioned lower than the hollow shaft. A lubricant guide is arranged to receive lubricant splashed up by the ring gear and helical spur gear of the intermediate shaft and guide the received lubricant toward the oil seal and a ball bearin | 07-23-2009 |
20100009800 | DEVICE FOR OPTIMIZING THE FEED FUNCTION OF THE RING GEAR OF A DIFFERENTIAL WITH REGARD TO THE MAXIMUM FLOW RATE - A device for optimizing the oil delivery function of the ring gear of a differential to maximize the volume of oil flow. The device includes an annular disk ( | 01-14-2010 |
20100029430 | TRANSMISSION FOR VEHICLE - An automatic transmission includes: a differential mechanism which includes a ring gear; a case which forms a differential chamber that houses the differential mechanism; and an oil pan which is fitted to the case, and which stores oil. The differential chamber includes a first space in which the oil supplied from the oil pan is gathered, and a second space which is formed on the opposite side of the first space with respect to the ring gear in the direction in which the rotational axis of the ring gear extends, and which is communicated with a space inside the oil pan. An oil passage, through which the oil is introduced from the first space to the second space, is formed in the case. The oil passage is formed in a bottom portion of the differential chamber. | 02-04-2010 |
20100041505 | AUXILIARY LUBRICATION PUMP FOR CARRIERS - A carrier assembly includes an auxiliary lubrication pump that lubricates gear components positioned within an internal cavity of a carrier housing. A differential gear assembly is positioned within the internal cavity to rotate about an axis. The auxiliary lubrication pump includes a first gear that is driven by the differential gear assembly about the axis and a second gear that is driven by the first gear. The first and second gears of the auxiliary lubrication pump cooperate to direct and control lubrication with the carrier housing. | 02-18-2010 |
20100048341 | AXLE ASSEMBLY HAVING MECHANISM FOR CIRCULATING LUBRICATING FLUID TO WHEEL ENDS - An axle assembly with an axle shaft, an annular disc and a pair of change members. The axle shaft includes an unthreaded body portion having a first diameter. The annular disc is mounted on the body portion and has a central aperture through which the unthreaded body portion is received. The central aperture has a second diameter that is larger than the first diameter. Rotation of the axle shaft causes the annular disc to translate on the unthreaded body portion between the change members and wherein a direction in which the annular disc translates is changed through contact between the annular disc and the change members. | 02-25-2010 |
20100105513 | DIFFERENTIAL LUBRICATION FEED SYSTEM IN A DRIVE AXLE ASSEMBLY - A method for lubricating an axle assembly can include: coupling a pair of tapered roller bearing to opposite ends of a differential housing; placing the differential housing into a carrier housing assembly such that the tapered roller bearings support the differential housing on the carrier housing assembly for rotation about a first axis; collecting a lubricant proximate a side of one of the tapered roller bearings opposite the differential housing; and rotating the differential housing about the first axis to cause the one of the tapered roller bearings to move a portion of the collected lubricant through the differential housing. A related axle assembly is also provided. | 04-29-2010 |
20100144480 | Drive axle assembly with gear mesh lubrication systems for lubricating gear mesh and/or differential bearings - An axle assembly having an axle assembly with first and second sumps for holding a lubricant. A rotating ring gear associated with a differential can rotate through the lubricant in the first sump to cause a portion of the lubricant to cling to the ring gear. A portion of the lubricant that has clung to the ring gear can be removed from the ring gear and transferred to the second sump. The lubricant in the second sump can be drained to lubricate teeth of a pinion that is in meshing engagement with the ring gear and/or to lubricate bearings that support the pinion. A related method is also provided. | 06-10-2010 |
20100304914 | LIMITED SLIP DIFFERENTIAL WITH POSITIVE LUBE FLOW TO CLUTCH PLATES - A differential with a differential case, a differential gear set and a clutch pack. Apertures are formed axially through the differential case and the clutch pack to facilitate the introduction of lubricant through the differential case and into the clutch pack. An axle assembly and a method of operating an axle assembly are also provided. | 12-02-2010 |
20110039651 | Lubricating Device for a Variable Speed Transmission - The invention relates to a lubricating device for a variable speed transmission with an integrated interaxle differential for motor vehicles, on the shaft of the transmission there being at least one synchronizer clutch for shifting one or two lower (slower) gear ratios and the interaxle differential, and the synchronizer clutch and the interaxle differential being supplied with lubricating oil by way of a central longitudinal channel in the shaft and by way of radial channels and/or radial gaps branching off from it. For improved adaptation of the lubricating oil supply in defined driving states of the motor vehicle, there are means which are integrated into the longitudinal channel and which change the lubricating oil supply to the synchronizer clutch and the interaxle differential as a function of the driving speed. | 02-17-2011 |
20110111911 | METHOD AND APPARATUS FOR LUBRICATING A DIFFERENTIAL IN AN AXLE ASSEMBLY - A power transmitting assembly having a differential case and a differential gearset that is received in an interior chamber in the differential case. The differential case defines a tubular bearing mount and a plurality of oil galleries. The tubular bearing mount terminates at a radially extending shoulder. Each oil gallery intersects the radially extending shoulder at a first end and extends through the differential case to communicate with the interior chamber. At least one location along the length of each oil gallery has a lateral cross-section that is smaller than a lateral cross-section of that oil gallery's first end. | 05-12-2011 |
20110212805 | METHOD AND APPARATUS FOR LUBRICATING A DIFFERENTIAL IN AN AXLE ASSEMBLY - A power transmitting assembly having a differential case and a differential gearset that is received in an interior chamber in the differential case. The power transmitting assembly is configured to provide improved lubrication into an interior of the differential case. | 09-01-2011 |
20110245009 | POWER TRANSMISSION DEVICE - A vehicle power transmission device including an accumulation portion which accumulates lubricating oil, a pressure pump driven to pump the lubricating oil accumulated in the accumulation portion to the transmission as hydraulic oil, a scooping gear which scoops up the lubricating oil accumulated in the accumulation portion while rotating, a reception and guide portion receiving the lubricating oil scooped up by the scooping gear and guiding it to a predetermined lubrication target, and a leaked hydraulic oil guide portion guiding leaked hydraulic oil, leaked when the hydraulic oil is pumped from the pressure pump, to the reception and guide portion. | 10-06-2011 |
20110245010 | VEHICLE TRANSMISSION - A vehicle transmission including a rotatable input shaft connected to a driving source; a countershaft parallel to the input shaft; a differential unit below the countershaft, to which rotation is input from the countershaft, and coupled to right and left wheels; a case member containing the input shaft, countershaft, and the differential unit; a differential chamber disposed in the case member, contains the differential unit, and is separated from an oil storage chamber; and a differential separation member separating the differential chamber from the storage chamber, and formed along the differential unit ring gear, which meshes with an output gear of the countershaft. The differential separation member has an opening so the output gear can mesh with the ring gear, a communication portion, formed in an upper part of the differential separation member, and located on an upstream side of the opening in a rotation direction of the ring gear during forward traveling, discharges oil from the differential chamber, and a wall member on a side of an output gear meshing portion and the ring gear with respect to the communication portion, and contacts the differential separation member outer surface. | 10-06-2011 |
20110263372 | LUBRICATION STRUCTURE OF DIFFERENTIAL GEAR UNIT - In a lubrication structure of a differential gear unit, a case has a guide rib that extends over a certain area with respect to a rotation path of a head of a bolt when a ring gear rotates, and that protrudes out from the case toward the head of the bolt. Also, a through-hole that extends in a vertical direction is formed in an upper portion of a hollow supporting portion, and the guide rib has an oil reservoir that curves toward an upper end opening of the through-hole. | 10-27-2011 |
20110281680 | Final Drive Comprising A Lubrication System - A final drive comprising a lubrication system is provided. The final drive comprises a differential housing and a reaction plate, wherein the reaction plate is mounted to the differential plate. The final drive also comprises a shaft and a friction disc. The shaft is rotatably disposed with differential housing, and the friction disc, which has a lubrication hole, is mounted about the shaft. The lubrication system comprises a differential supply passage positioned in the differential housing, and it also comprises a plate passage positioned in the reaction plate. The plate passage is in fluid communication with the differential supply passage, and the plate passage is in intermittent fluid communication with the lubrication hole. | 11-17-2011 |
20120010037 | Final Drive Having A Lubrication System - A final drive comprising a lubrication system is provided. The final drive comprises an axle housing and a differential housing. The differential housing is in alignment with the axle housing, and they share a longitudinal axis. The final drive further comprises a lubricant ring having a lubricant ring inner diameter. The lubricant ring travels about an inner surface of the axle housing. Further, the final drive has a longitudinal axis region, defined as the region formed by the lubricant ring inner diameter. The lubrication system comprises a lubrication inlet in fluid communication with a lubricant outlet. The lubrication inlet is disposed in the axle housing to capture a portion of the lubricant ring. The lubricant outlet is disposed in the differential housing to distribute the portion of the lubricant ring generally to the longitudinal axis region. | 01-12-2012 |
20120100951 | OVERDRIVE UNIT - An overdrive unit for a vehicle is operatively connectable to a transverse mounted front wheel drive vehicle gearbox, which has been arranged to provide a single output shaft. The overdrive unit includes a planetary gear set and a differential are mounted together in an overdrive unit housing such that the output shaft of the vehicle gearbox is operatively connectable to the planetary gear set. The planetary gear set is further operatively connectable to drive shafts of the vehicle via the differential. A clutch unit is provided for selectively engaging gearing of the planetary gear set. | 04-26-2012 |
20120142476 | TRANSMISSION SYSTEM - A transmission system includes a housing having a sump. A crown wheel and pinion are positioned within the housing. The transmission system further includes a reservoir having an inlet system and an outlet system. Rotation of the crown wheel causes the oil to be transferred from the sump to the reservoir via the inlet system, and the outlet system allows oil to pass from the reservoir to the sump. | 06-07-2012 |
20120172167 | AXLE ASSEMBLY - An axle assembly for a vehicle including a first gear, and a second gear joined to a shaft extending along a longitudinal axis. The second gear engages the first gear. A bearing is disposed over the shaft distal the second gear. A housing is disposed about at least a portion of the shaft. The housing includes a first lubricant pathway spaced apart from a second lubricant pathway, wherein the first lubricant pathway routes lubricant towards the bearing and the second lubricant pathway routes lubricant away from the bearing. The first and second lubricant pathways are not in a position coplanar with a plane of rotation of the first gear. | 07-05-2012 |
20120178576 | AXLE SYSTEM - An axle system is provided that included an axle assembly having an axle member, a gear coupled with the axle member, and a housing encasing a lubrication fluid and at least a portion of the axle member and the gear therein. A device may selectively heat and/or cool the lubrication fluid at one or more regions of the axle system. | 07-12-2012 |
20120270693 | LUBRICANT OIL, FRICTION MEMBER, AND GEAR-TYPE DIFFERENTIAL WITH DIFFERENTIAL LIMITING FUNCTION - A lubricating oil used in a friction-type drive power transmission apparatus which includes: at least one of two additives; a first additive selected from at least one of an aliphatic amine having a saturated or unsaturated hydrocarbon group with a carbon number of 12 to 20 (Chemical Formula 1) and an aliphatic amine ethylene oxide adduct having a saturated or unsaturated hydrocarbon group with a carbon number of 12 to 20 (Chemical Formula 2). | 10-25-2012 |
20120295751 | DIFFERENTIAL APPARATUS - Differential apparatus capable of guiding and supplying a sufficient amount of lubricant oil to the lubrication elements accommodated in the differential apparatus ( | 11-22-2012 |
20120316024 | Drive Axle Housing System for Reducing Oil Churning - A drive axle housing system may minimize churning of splash and spray oil within a drive axle housing. The drive axle housing system includes apparatus for incorporation into the axle, the apparatus including an oil churning reduction member that may be affixed to the interior walls of the axle housing. The oil churning reduction member includes interior surfaces adapted to closely align with interior moving gear components of the axle to minimize efficiency losses due to oil movement. The system may also incorporate an annular element, affixed to the axle housing and closely aligned with the backside of a ring gear component of the differential axle. The combined use of the member and the element may substantially reduce torque losses attributable to excessive churning of oil. | 12-13-2012 |
20120329599 | RING GEAR FASTENING STRUCTURE - Disclosed is a ring gear fastening structure in which a ring gear is fastened to the flange of a differential case configuring a differential sub-assembly. The inner circumferential surface of the ring gear is press-fitted into the outer circumferential surface of the flange, and the ring gear is swaged by means of a swage part which is disposed on at least one end of the flange in the axial direction. The inner circumferential surface of the ring gear is formed with a circumferential groove which extends in the circumferential direction of said inner circumferential surface. The circumferential groove is disposed facing the outer circumferential surface of the flange. | 12-27-2012 |
20130217532 | DIFFERENTIAL LUBRICATION FEED SYSTEM IN A DRIVE AXLE ASSEMBLY - A method for lubricating an axle assembly can include: coupling a pair of tapered roller bearing to opposite ends of a differential housing; placing the differential housing into a carrier housing assembly such that the tapered roller bearings support the differential housing on the carrier housing assembly for rotation about a first axis; collecting a lubricant proximate a side of one of the tapered roller bearings opposite the differential housing; and rotating the differential housing about the first axis to cause the one of the tapered roller bearings to move a portion of the collected lubricant through the differential housing. A related axle assembly is also provided. | 08-22-2013 |
20130274054 | LUBRICATION SYSTEM FOR A DIFFERENTIAL OF A DRIVEN AXLE AND AUTOMOTIVE VEHICLE COMPRISING SUCH A LUBRICATION SYSTEM - This lubrication system for a differential of a driven axle on an automotive vehicle includes a sump in which is located a crown wheel driven by a pinion, the crown wheel being fast in rotation with a carrier, and a main lubricant tank having an inlet port and at least one outlet port. Rotation of the crown wheel causes lubricant to be transferred from the sump to the main tank via the inlet port, and the outlet port allows the lubricant to pass from the main tank to the sump. The lubrication system includes an auxiliary lubricant tank located in the sump, adapted to be tilled in with lubricant by rotation of the crown wheel, and an arrangement to convey lubricant from auxiliary tank to a lubricant needing portion of the differential. | 10-17-2013 |
20130281251 | DIFFERENTIAL ASSEMBLY WITH FEATURES FOR IMPROVED LUBRICATION - A power transmitting component includes a housing having an interior cavity with a sump, a lubricant disposed in the sump, and a component mounted in the housing assembly for rotation about a first axis. The component rotates through the lubricant in the sump to generate a stream of lubricant that is slung from the component as it rotates at a speed in excess of a predetermined speed. The housing includes a deflector that extends into the interior cavity and has a first face having an impingement portion and a first edge adjacent the impingement portion. The impingement portion extends into the stream and deflects a portion of the stream towards the first edge. The first edge disperses the portion of the stream toward selected areas in the interior cavity. | 10-24-2013 |
20130288843 | MACHINE SYSTEM HAVING A LUBRICATION SYSTEM - The present invention relates to a machine system comprising a machine having at least a first section and a second section, the first section having a first velocity and the second section having a second velocity, the second velocity being different from the first velocity, and a lubrication system comprising at least one tank having one lubricant, the lubrication system being connected to the first and second sections. Furthermore, the invention relates to a wind turbine comprising the machine system. | 10-31-2013 |
20130296095 | Axle Assembly Having a Lubricant Reservoir Module - An axle assembly having a housing, a reservoir module, and an axle. The reservoir module may be configured to receive a lubricant and may be disposed in an arm portion of the housing. The axle may be disposed in the arm portion such that the axle extends through and is spaced apart from a tube portion of the reservoir module. | 11-07-2013 |
20130303323 | POWER TRANSMITTING COMPONENT - A power transmitting component with a housing, a shaft and a seal. The housing has a wall member, a shaft bore, and a shield wall. The shaft bore is formed through the wall member. The shield wall is coupled to and extends outwardly from the wall member. The shield wall is formed about the shaft bore and defines a drain spout. The shaft is received through the shaft bore. The seal is received in the shaft bore and sealingly engages the housing and the shaft. The drain spout is configured to drain liquid from a space that is radially inward of the shield wall when the power transmitting component is disposed in a predetermined orientation. | 11-14-2013 |
20130316866 | POWER TRANSMISSION DEVICE - In a power transmission device, a breather chamber having an opening on its one end side and extending coaxially with the countershaft is formed in a countershaft that transmits power from an output shaft of an automatic transmission to a differential mechanism. An inner end of a vent pipe placed so as to extend through a transmission case and that includes the inner end and an outer end each having an opening is inserted in the opening of the breather chamber. A plug, which closes a gap between an inner peripheral surface of the breather chamber and an outer peripheral surface of the inner end of the vent pipe so as to allow air to flow between the inside of the transmission case and the breather chamber and so as to restrict entrance of hydraulic oil into the breather chamber, is placed in the opening of the breather chamber. | 11-28-2013 |
20140155214 | LUBRICATING OIL SUPPLY APPARATUS - A lubricating oil supply apparatus arranged in a transaxle case includes a differential ring gear, a catch tank that stores lubricating oil picked up by the differential ring gear, a first flow path arranged higher than a highest position of an outer diameter of the differential ring gear, a gear with a higher center position than the differential ring gear, and a second flow path that guides the lubricating oil picked up by the gear to the catch tank. The first flow path guides the lubricating oil picked up by the differential ring gear to the catch tank. The gear is in mesh with the differential ring gear, and picks up the lubricating oil picked up by the differential ring gear. The second flow path is arranged lower than a highest position of an outer diameter of the gear. | 06-05-2014 |
20140187374 | LIQUID-LUBRICATED BEARING AND VEHICLE PINION SHAFT SUPPORT DEVICE - An outer lubricating liquid inflow passage that provides communication between an outside of a liquid-lubricated bearing and a rolling element arrangement chamber is formed between an outer ring and a cage, on the lubricating liquid inflow side. The outer lubricating liquid inflow passage has an annular axially extending outer passage portion that extends in the axial direction, and an annular radially extending outer passage portion. The radially extending outer passage portion communicates with a rolling element-side axial end portion of the axially extending outer passage portion. The radially extending outer passage portion extends from the axially extending outer passage portion to the rolling element arrangement chamber inward in the radial direction of the outer ring. A labyrinth is formed by the axially extending outer passage portion and the radially extending outer passage portion. | 07-03-2014 |
20140213405 | POWER TRANSMISSION DEVICE - A power transmission device having a shift device in a case; and a pump sucking and discharges oil, including: a gear receiving power from the shift device; a gear shaft with a breather chamber having at least one end side in an axial direction being opened, and attached to the gear; a bearing supporting the gear shaft rotatably relative to the case on the breather chamber one end side; a vent pipe communicating with the breather chamber opening and outside of the case; a passage in the case with an outlet port opening to the case inside, and allowing pump leakage oil to flow from the outlet port; a member receiving flowing from the outlet port of the passage; a passage guiding the leakage oil from the receiving member to the bearing; and a portion suppressing entry of oil thrown up with rotation of the gear into the receiving member. | 07-31-2014 |
20140221145 | IN SITU GEARBOX GREASING SYSTEM - A method and apparatus for lubricating a gear of a differential gear system is disclosed. A member or shaft rotates within a housing of the differential gear system. The shaft includes a chamber for receiving a lubricant from the exterior of the housing. A gear rotates relative to the shaft, and a hole in the shaft disperses the lubricant from the chamber to a selected gear location of the gear to lubricate the gear. | 08-07-2014 |
20140235395 | Drive Device For The Road Wheels Of A Vehicle - A drive device for the road wheels of a vehicle, with a stationary housing partially filled with a lubricating liquid, and a rotatably drivable driveshaft inserted into the housing interior and with a differential unit having a crown wheel with a differential housing. The crown wheel is rotatably drivable by the driving gear wheel, by means of which crown wheel a plurality of differential gear wheels of the differential unit are rotatably drivable, driven gear wheels being rotatably drivable in turn by these differential gear wheels. The driven gear wheels being drivingly connected in each instance to driven shafts for driving the road wheels of the vehicle. The differential unit is enclosed in the housing interior by a shielding housing, wherein the stationary housing interior is connected to the shielding housing interior via one or more apertures. | 08-21-2014 |
20140243137 | AXLE ASSEMBLY AND METHOD OF LUBRICATION CONTROL - An axle assembly and a method of control. The axle assembly may include a lubrication pump that may be operated to distribute lubricant in the axle assembly based on ambient air temperature and lubricant temperature or when a spinout condition is present. | 08-28-2014 |
20140335990 | AXLE ASSEMBLY - An axle assembly including a housing having a first axle tube and a second axle tube, a crown wheel mounted in the housing, a pinion in meshing engagement with the crown wheel, a first reservoir for retaining fluid in contact with the crown wheel for lubricating the crown wheel, a second reservoir for retaining fluid remote from the crown wheel, a first system for transferring fluid in the first reservoir to the second reservoir, a second system for transferring fluid in the second reservoir to the first reservoir, a sensor for generating a signal representative of an axle assembly characteristic, the axle assembly further including a control system for receiving said signal and operating said first system and or said second system to transfer fluid to or from the first reservoir in response to said signal. | 11-13-2014 |
20150031490 | DIFFERENTIAL HAVING STEEL HYDRAULIC TRANSFER BUSHING - A differential gear mechanism constructed in accordance to one example of the present disclosure can include a differential casing defining first and second output shaft openings. The differential casing can have a case housing portion that defines fluid porting therein. The case housing portion including a hub extending therefrom. The hub can have an inner hub portion and an outer hub portion. The outer hub portion can be stepped down from the inner hub portion. The hub can include a stepped annular face at a transition between the inner and the outer hub portions. A hydraulic transfer bushing can be received by the outer hub of the case housing portion. The hydraulic transfer bushing can define fluid porting therein. The hydraulic transfer bushing can be disposed on the outer hub at a location where the fluid communication porting is fluidly connected to the fluid porting of the case housing portion. | 01-29-2015 |
20150057123 | OPTIMIZED OUTER CLUTCH HOUSING FOR REDUCED SPIN LOSS, IMPROVED OIL FLOW AND IMPROVED CLUTCH DURABILITY - A torque transfer device can include a housing and a clutch. The housing can define a clutch cavity and a pocket. The pocket can be formed at an axial end of the clutch cavity and have a generally arcuate shape that extends circumferentially about the clutch cavity above a static lubrication level. The clutch can include an outer carrier, an inner carrier, a plurality of first and second interleaved friction plates. One of an outer and an inner plate carrier of the clutch can be coupled to an input member for common rotation. The other of the carriers can be coupled to a differential case for common rotation. Rotation of the outer carrier relative to the housing through a fluid in the clutch cavity can sling a portion of the fluid toward an inner surface of the housing to cause the portion of the fluid to collect in the pocket. | 02-26-2015 |
20150057124 | POWER TRANSMITTING COMPONENT WITH TORQUE TRANSFER DEVICE CONFIGURED WITH FLUID EVACUATION AND LUBRICATION SYSTEM - A power transmitting component can include a differential, a first sump, a clutch assembly, a reservoir, a pump, and a fluid circuit. The pump can operate in a first mode to pump fluid from a reservoir to the piston chamber to move the piston to a second position. The pump can operate in a second mode to pump fluid from the piston chamber to the reservoir to move the piston to a first position. The fluid circuit can fluidly couple the reservoir to the first sump when the piston is in the first position and the pump is operated in the second mode. The pump can be configured to pump fluid from the first sump through the fluid circuit when the fluid circuit fluidly couples the first sump and the reservoir. | 02-26-2015 |
20150057125 | POWER TRANSMITTING COMPONENT WITH TORQUE TRANSFER DEVICE CONFIGURED WITH DRAG REDUCTION SYSTEM - The present teachings provide for a power transmitting component including a housing, a clutch, a vent, and a dam. The vent can fluidly couple a first and second cavity. The dam can include a door member. Rotation of the outer carrier through a fluid in the second cavity can sling a portion of the fluid toward the vent to cause the portion of the fluid to be transferred from the second cavity, through the vent, and to the first cavity. When the piston is in a first position, the door member can be in a closed position to limit fluid flow from the first cavity to the second cavity. When the piston is in a second position, the door member can be in an open position to allow fluid to flow from the first cavity to the second cavity. | 02-26-2015 |
20150065286 | Driven Axle for a Motor Vehicle - Drivable axle ( | 03-05-2015 |
20150087460 | POWER DISTRIBUTION UNIT WITH A FORCED LUBRICATION FLOW ASSEMBLY - A lubricant pump assembly for use with a power distribution unit for a vehicle, comprising a pump, a first rotating component, a second rotating component, and a lubricant. The pump has an inlet and an outlet. The inlet and the outlet are in fluid communication with a housing of the power distribution unit. The first rotating component is disposed in the housing of the power distribution unit. The second rotating component is disposed in the housing of the power distribution unit adjacent the first rotating component. The lubricant is disposed within the housing of the power distribution unit. The pump transfers a portion of the lubricant from the inlet to the outlet. The outlet is disposed adjacent the first rotating component and the second rotating component to dispose a portion of the lubricant therebetween. | 03-26-2015 |
20150087461 | Banjo Type Rear Axle Assembly with Drop Out Third Member - The present invention is directed to a Banjo type axle assembly with a drop out third member carrier for the pinion shaft assembly, ring gear assembly, the rotatable differential house assembly and the differential bearing clamp assembly. Said drop out third member carrier and the rear axle housing are constructed sufficiently to house a 10.5 inch diameter ring gear. In one preferred embodiment the drive pinion assembly and the ring gear assembly exhibit a mild hypoid gear set orientation. In one preferred embodiment said drop out third member carrier has substantially uniform dimensions in thickness and has a symmetrical bolt pattern between a pinion shaft side and a non-pinion shaft side with a total of twelve bolts to affix said drop out third member to carrier to said rear axle housing. An oiling shelf has extra material to house pinion bolts as part of the pinion shaft assembly. | 03-26-2015 |
20150141192 | CLUTCHED POWER TRANSMITTING DEVICE WITH FILTER ELEMENT - A power transmitting device can include a clutch, filter and housing defining first and second sumps spaced apart by a first wall. First and second members can meshingly engage and rotate through the first sump. The clutch plates can rotate through the second sump. A third member can be drivingly coupled to the second member and clutch plates. An outer surface of the third member and the first wall can define an annular cavity that fluidly couples the sumps. The filter can be received in the annular cavity about the third member and can include a second wall, outer portion, inner portion, and a filter element. The second wall can define an aperture. The outer portion can seal with the first wall. The inner portion can seal with the outer surface. The filter element can span the aperture to permit fluid communication between the sumps and inhibit passage of solids. | 05-21-2015 |
20150300482 | VEHICLE DIFFERENTIAL GEAR - A vehicle differential gear includes first and second pinion gears rotatably supported by a differential case; first and second side gears meshing with the first and second pinion gears and each coupled to corresponding one of a pair of output shafts; and a center washer, a first end washer and a second end washer each having a sliding surface that slides with an axial end face of at least one side gear of the first or second side gears, the sliding surface being lubricated by a lubricating oil; wherein a surface treatment for enhancing a solid lubricating property is performed on the washers. | 10-22-2015 |
20150354693 | DRIVE UNIT FOR VEHICLES - A drive unit for vehicles that prevents a blow out of lubrication oil from a breather during splash lubrication is provided. A partition plate is disposed along a flat face of a ring gear to divide an inner space of the chamber into a first reservoir in which the ring gear is disposed, and a second reservoir to which the lubrication oil partially flows thereinto to return to an oil pan. The partition plate comprises a main body disposed between the flat face of the ring gear and an inner face of the chamber opposed thereto, and a bent portion formed on an upper end of the main body to guide the lubrication oil scattered upwardly by a rotation of the ring gear in a direction away from the breather. | 12-10-2015 |
20160033028 | STRUCTURE FOR LUBRICATING TRANSMISSION - An oil feeding member ( | 02-04-2016 |
20160033029 | AXLE ASSEMBLY - An axle assembly that is configured with reduced weight and an internal configuration that is configured to reduce losses through, for example, higher efficiency gearing, low viscosity lubricant and reduced lubricant levels as compared with current production automotive axle assemblies that are configured with a similar overall gear ratio and capacity. | 02-04-2016 |
20160069448 | Automatic Transmission Device - 1. An automatic transmission device comprises a hardened, solid steel round bar for placing inside the differential housing, six evenly spaced grooves, the device configured so that six evenly space grooves provide constant lubrication to the rotating spider gears. | 03-10-2016 |
20160116052 | DIFFERENTIAL DEVICE - A differential device distributively transmitting rotational force of an input member rotatable together with a pinion support portion to paired output shafts includes: paired side gears respectively having an outer peripheral portion including a toothing portion meshing with a pinion and connected to the output shafts and a cover portion covering an outside of at least one side gear and rotating integrally with the input member, even under severe driving conditions, preventing seizure in the portions and degradation of lubricant oil is suppressed. At least one cover portion includes an oil retaining portion covering a back surface of the one side gear in a first predetermined area including an area overlapping the pinion and a lightening portion exposing the back surface in a second predetermined area without overlapping the pinion, as seen in a side view from axially outside of the output shafts. | 04-28-2016 |
20160138702 | DIFFERENTIAL DEVICE - In a differential device, even in a case where tooth portions of side gears are placed farther from output shafts, or in a case of high-speed rotation of a pinion, lubricant oil can be sufficiently supplied from the output shaft sides to meshing portions of the pinion and the side gears and sliding portions of the pinion. Accordingly, seizure in the meshing portions and the sliding portions is prevented effectively. At least one of the side gears includes a lubricant oil passage in a shaft portion and a lubricant oil groove in an inner side surface facing the other side gear, the lubricant oil passage guiding the lubricant oil from an outer end portion to an inner end portion in an axial direction of the shaft portion, and the lubricant oil groove being configured to supply the lubricant oil from the lubricant oil passage to the tooth portion side. | 05-19-2016 |
20160169370 | DIFFERENTIAL DEVICE | 06-16-2016 |
20160178048 | DRIVELINE THERMAL AND LUBRICANT FLOW MANAGEMENT | 06-23-2016 |
20160377164 | DIFFERENTIAL AND DIFFERENTIAL LUBRICATING FLUID MANAGEMENT SYSTEM - A differential is provided. The differential includes a housing that has a sump, an input shaft, a ring gear, a carrier that is affixed to the ring gear, and a diverter. The sump is configured to collect lubricating fluid. The ring gear is configured to transfer lubricating fluid out of the sump. The diverter is configured to direct the lubricating fluid to the input shaft and carrier. | 12-29-2016 |
20160377168 | DIFFERENTIAL CLUTCH CARRIER LUBRICATION & COOLING SYSTEM - An axle assembly for a vehicle including a differential carrier having a first portion and a second portion. The first portion including a first engagement surface coupled with a second engagement surface of the second portion. The differential carrier defines a differential area and a clutch area substantially separated by a partition. The differential carrier first engagement surface defines a lubricant channel fluidly connecting the differential area with the clutch area, and at least partially located above the clutch area, and bending such that the lubricant channel is at least partially located in an outer wall of the differential carrier. The axle assembly further includes a bearing retainer disposed through the outer wall of the differential carrier. The bearing retainer includes an aperture therethrough, fluidly connecting the lubricant channel with a clutch assembly. | 12-29-2016 |