Abstract: A lubricated rotational connection system provided with a free-wheel having a driving part and a driven part as well as at least one rotational link member arranged in a linking space, the linking space being located radially between a driving linking section and a driven linking section. A lubrication device comprises a fluid circulation device constrained to rotate with a driven pumping section of the driven part. The fluid circulation device is set in rotation with respect to a driving pumping section when the driving speed of rotation of the driving pumping section is lower than the driven speed of rotation of the driven pumping section about the axis of rotation in order to generate a forced circulation of the lubricating fluid within the linking space.

Abstract: A selectable one-way clutch includes: a pocket plate provided with one side surface where a plurality of housing recesses is formed, each housing recess housing a plate-shaped engagement piece; a hollow disk-shaped notch plate disposed to face to the one side surface of the pocket plate, configured to rotate relative to the pocket plate, and including an engagement recess formed on a surface of the notch plate facing to the housing recess and a first communication groove communicating from the engagement recess to an outer peripheral side of the notch plate; a resilient member disposed between a bottom portion of the housing recess and the engagement piece to urge the engagement piece toward the notch plate; and a selector plate provided between the pocket plate and the notch plate to switch between storage of the engagement piece and release of the engagement piece.

Abstract: A clutch transmits rotation drive force of a rotation shaft to a driven shaft and restricts transmission of a rotation force from the driven shaft to the rotation shaft. The clutch includes a grease accommodation portion and a rotation member. Grease is arranged in the grease accommodation portion. The grease accommodation portion opens in an axial direction of the rotation shaft. The rotation member is at least partially inserted into the grease accommodation portion and rotated with the rotation shaft about a center axis of the rotation shaft. The rotation member includes a leakage restriction wall that is located toward a radially outer side of the rotation shaft from the opening of the grease accommodation portion and extended in the axial direction of the rotation shaft. The leakage restriction wall is located toward an outer side of the grease accommodation portion from the opening of the grease accommodation portion.

Abstract: A one way clutch with improved cage retention is disclosed. The assembly includes a housing with an opening having a first ramped portion defined on an inner periphery of the opening and a groove. A cage defines a plurality of rolling element pockets, and includes a first rim with a second ramped portion that corresponds to the first ramped portion. The first ramped portion of the housing is aligned with the second ramped portion of the cage during insertion of the cage into the opening of the housing for axial alignment of the second ramped portion and the groove. The cage is then rotated with respect to the housing such that the second ramped portion overlaps the first ramped portion to retain the cage in the housing.

Abstract: A control device of a vehicle includes an engine, an electric motor, and a first clutch connecting/disconnecting a power transmission path between the engine and the electric motor, and a second clutch configured to achieve a mechanically directly-coupled state of a power transmission path between the engine/the electric motor and drive wheels, the control device of a vehicle increasing a torque of the electric motor and causing the second clutch to slip-engage when the engine is started by controlling the first clutch toward engagement during motor running using only the electric motor as a drive force source for running with the first clutch released and the second clutch engaged, when the torque of the electric motor increased at the start of the engine relative to the torque of the electric motor during the motor running is larger, a slip amount of the second clutch being made larger as compared to when the torque is smaller.

Abstract: A rear-wheel drive for a bicycle or a trailer bike comprises an output sprocket of a chain drive, a rear-wheel shaft, and a driving mechanism being supported outside to the bicycle frame. The rear-wheel shaft is supported only on one side of the driving in a supporting manner relative to the bicycle frame. The driving mechanism on the side facing the bicycle frame is not, as commonly known, supported relative to the rear wheel shaft but relative to the bicycle frame. That creates the required space for arranging a freewheel clutch, that fulfills the strength requirements for transmitting the occurring torques even when using sprockets with only a few teeth. Thus, short distances between the rear wheel and the bottom bracket and single-arm suspensions in the bicycle frame can be implemented together with the implementation of suitable developments of the chain drive for small running wheels.

Abstract: A flow control assembly for an automatic transmission includes a valve for opening and closing communication with a source of pressurized fluid and a rotatable cam secured to a member, contact between the cam and a plunger of the valve causing said communication to open, absence of contact between the cam and the plunger causing said communication to close.

Abstract: In one aspect, the invention is directed to a decoupler assembly for between an endless drive element and a shaft. The endless drive element may be, for example, an accessory drive belt from a vehicular engine. The shaft may be, for example, the input shaft of a belt-driven accessory, such as an alternator or a compressor. The decoupler assembly includes a hub that mounts to the shaft, a pulley that is rotatable with respect to the hub, a dampening spring and a clutch member. A part of the pulley is supported on a pulley support surface on the hub. There is a gap between the pulley and the pulley support surface. The gap has lubricant therein to facilitate sliding between the pulley and the pulley support surface. By eliminating the use of a polymeric bushing between pulley and the hub, there are several advantages that are provided.

Abstract: A pulley assembly for an automobile accessory drive system includes a shaft engaging hub, a nut threaded onto the shaft engaging hub, an annular bushing, and one or more brake shoes positioned around the outside of the annular bushing all housed with a pulley member. The nut is capable of axial translation relative to the annular bushing and the annular bushing is capable of expanding radially outward in response to the axial translation of the nut in a first direction to provide frictional engagement between the inner coupling surface of the pulley member and the outer coupling surface of the brake shoes, which transfers torque from the pulley member to the input shaft. The nut includes a generally frustoconical outer surface, opposite its inner threaded surface, for seating the nut in the annular bushing.

Abstract: A liquid pressure generating apparatus including a pump, and two one-way clutches arranged coaxially with the pump drive shaft in a line in the axial direction on the side of a first axial direction. The pump case includes a projecting portion projecting from the corresponding pump case. Inner races of the respective two one-way clutches are integrated with each other and form a common inner race. Outer races of the respective two one-way clutches are formed independently from each other and are driven respectively by pump driving members different from each other, and directions of restricted relative rotation with respect to the common inner race are identical to each other. The common inner race includes a coupling portion to be coupled to the pump driving shaft on the side of the first axial direction with respect to the projecting portion.

Abstract: A liquid pressure generating apparatus including a pump; and two one-way clutches arranged coaxially with the pump's drive shaft. Inner races of the respective two one-way clutches are integrated with each other to form a common inner race. Outer races of the respective two one-way clutches are formed independently from each other and are driven respectively by pump driving members different from each other. The common inner race includes a coupling portion coupled to the pump drive shaft and extending in the radial direction and a cylindrical body portion extending from the coupling portion in a second axial direction opposite from the first axial direction on the radially outside the pump drive shaft. The body portion includes a depression indented radially outward on an inner peripheral surface thereof. A lubricant supply portion for the depression is provided radially inside the depression.

Abstract: A retainer for a one-way clutch is provided. In some embodiments, the retainer includes an annular portion with an inner circumferential surface, an outer circumferential surface and a first axial surface disposed between the inner circumferential surface and the outer circumferential surface. The first axial surface has a plurality of grooves, a second axial surface is disposed between the inner circumferential surface and the outer circumferential surface, and the second axial surface is configured to engage an outer race of the one-way clutch assembly. The retainer also includes a plurality of inner lobes that project generally radially inwardly from the inner circumferential surface, and are configured to engage an inner race of the one-way clutch assembly.

Abstract: A decoupler with driven and driving members, a clutch, a torsional vibration damper and a lubricant. The clutch is received in a bore in the driven member and includes a carrier, a wrap spring and at least one spring. The wrap spring is formed of spring wire and has a plurality of coils disposed between a first end, which is received in a groove in the carrier, and a second end. The portion of the wrap spring outside the carrier has an outer circumferential spring surface that is abutted against the inner circumferential surface of the bore. The at least one spring is disposed between the carrier and the driving member to transmit rotary power from the driving member to the carrier. The torsional vibration damper is coupled to the driving member for rotation therewith. The lubricant is disposed on the remaining portion of the wrap spring.

Abstract: A pulley assembly for use in an automobile accessory drive system includes a shaft engaging hub, a pulley member, a nut treaded onto the shaft engaging hub, and a brake member interposed between the pulley member and the nut. The shaft engaging hub is engaged with an accessory input shaft for rotation therewith. Frictional engagement between the pulley member, the brake member, and the nut transfers torque from the pulley member to the input shaft. The pulley member includes an inner coupling surface and a peripheral belt-engaging surface. The nut includes an outer coupling surface. The brake member includes a first coupling surface in frictional engagement the outer coupling surface of the nut and a second coupling surface in frictional engagement with the inner coupling surface of the pulley member. When torque is applied to the nut in a first direction the out coupling surface of the nut couples to the inner coupling surface of the brake member such that the hub and the nut rotate with the pulley member.

Abstract: An engageable coupling assembly having reduced spin losses and method of assembling such assembly within an automotive transmission to reduce such losses are provided. The assembly is adapted for use with pressurized fluid. The assembly includes first and second coupling members that are supported with respect to each other for relative rotation about a common rotational axis. The coupling members have a first pair of annular faces that oppose each other and define an annular space therebetween. A first face of the first pair has a set of pockets spaced about the rotational axis. A second face of the first pair has a set of locking formations. The coupling members have a second pair of annular faces that oppose each other. A first face of the second pair defines a first set of fluid grooves fluidly communicating the annular space with an exterior surface of the assembly.

Abstract: PROBLEM TO BE SOLVED: A lubrication structure of a power transmission apparatus is provided with a lubricating liquid transport pipe for cooling a rotating electrical machine used to allow a lubricated member positioned axially outwardly of the rotating electrical machine to be lubricated in the axial direction. SOLUTION: A lubrication structure comprises an oil pipe 44 having discharge nozzles 44a, 44c positioned vertically above coil ends 20a, 20b and discharge nozzles 44d, 44e axially outwardly of the discharge nozzle 44c in juxtaposed relationship with each other at the other axial end portion of the oil pipe 44, and a guide member 22 radially extending between the discharge nozzles 44d, 44e in the axial direction of a motor M and having a radially inner peripheral portion covering bearings 24, 42. The guide member 22 has a guide rib extending axially outwardly of a flange portion 22a to guide the oil discharged from the discharge nozzle 44e in the axial direction.

Abstract: A one-way clutch of roller type including an outer race having a plurality of pockets provided at their inner peripheries with cam surfaces, an inner race coaxially arranged with the outer race, rollers disposed in the pockets and adapted to transmit torque between the outer race and the inner race when engaged by the cam surfaces, a cage having a cylindrical portion with windows for holding the rollers and a flange portion extending outwardly from the cylindrical portion in a radially outward direction and rotatable relative to the outer race, each window having a circumferential window width smaller than a diameter of a corresponding roller, and springs disposed in the pockets and adapted to bias the rollers toward engagement with the cam surfaces, an inclined surface portion inclined in the axial direction being provided on at least a circumferential part of the inner peripheral surface of the outer race.

Abstract: A decoupler with driven and driving members, a clutch, a torsional vibration damper and a lubricant. The clutch is received in a bore in the driven member and includes a carrier, a wrap spring and at least one spring. The wrap spring is formed of spring wire and has a plurality of coils disposed between a first end, which is received in a groove in the carrier, and a second end. The portion of the wrap spring outside the carrier has an outer circumferential spring surface that is abutted against the inner circumferential surface of the bore. The at least one spring is disposed between the carrier and the driving member to transmit rotary power from the driving member to the carrier. The torsional vibration damper is coupled to the driving member for rotation therewith. The lubricant is disposed on the remaining portion of the wrap spring.

Abstract: A hybrid drive device including an electric motor; an automatic transmission; a first oil passage; and a second oil passage branched from the first oil passage and that guides the oil to a friction element that is engaged for establishment of a speed in the automatic transmission. An orifice is provided in the first oil passage downstream of the second oil passage. A switching valve for the friction element is provided in the second oil passage to be switched between communicated and blocked states. A hydraulic servo for the friction element is supplied with a hydraulic pressure to control the friction element between engaged, disengaged, and slip states. The switching valve includes a control oil chamber that communicates with the hydraulic servo, and is switched into the blocked state when the friction element is disengaged and into the communicated state when the friction element is engaged or the slip state.

Abstract: Disengageable pulley device comprising a pulley mounted on a shaft by means of a rolling bearing and of a freewheel, the pulley comprising a rim mounted on the periphery of a one-piece outer race of substantially tubular shape comprising, on an inner surface, at least one raceway for rolling elements and at least one contact seat of cylindrical revolution for lock-up elements of the freewheel, a one-piece inner race forming a torque transmission shaft and including, on an outer surface coming opposite the outer race, at least one raceway for the rolling elements and at least one contact seat of cylindrical revolution for the lock-up elements of the freewheel.

Abstract: A one-way clutch of roller type comprises an outer race having pockets provided at their inner faces with cam surfaces, an inner race spaced inwardly from the outer race in a radial direction and rotatably disposed in concentric with the outer race and having an annular outer peripheral track surface, a plurality of rollers disposed in the pockets and adapted to transmit torque between the outer race and the inner race when engaged by the cam surfaces, and accordion springs disposed in the pockets and adapted to bias the rollers toward engagement directions with respect to the cam surface, and is characterized in that one ends of the accordion springs are secured to axial end faces of the outer race.

Abstract: A pulley assembly for use in an automobile accessory drive system includes a shaft engaging member including a bore for receiving an accessory input shaft for engagement therewith. A pulley member includes a bore receiving an axially extending shaft of the shaft engaging member. The pulley member includes a first coupling surface and a peripheral belt-engaging surface. A shaft extension member transfers torque between the pulley member and the shaft engaging member. The shaft extension member includes a second coupling surface facing the first coupling surface. The first and second coupling surfaces couple together when torque applied to the shaft extension member is in a first direction such that the shaft extension member and the shaft engaging member rotate with the pulley member. The first and second coupling surfaces decouple when torque applied to the shaft extension member is in a second direction opposite the first direction such that the shaft engaging member rotates relative to the pulley member.

Abstract: A one-way clutch is provided with an outer ring having a cylindrical wall on an inner circumference thereof, an inner ring having cam surfaces formed thereon, rolling elements arranged between the outer and inner rings to perform transmission of a torque between the outer and inner rings, and springs biasing the rolling elements, respectively. The inner ring is provided on its outer circumferential wall with recesses such that lube-oil receiving and accumulating parts are formed between the cylindrical wall of the outer ring and the outer circumferential wall of the inner ring.

Abstract: There is provided a lubricating structure of a one-way clutch which can lubricate rollers without degrading durability. A direction in which a lubricating oil passage for supplying oil to rollers of the one-way clutch extends is tilted relative to the rotational axis of an inner race and tilted relative to respective rotational axes of the rollers as viewed from the outer circumferential side of the inner race. Thus, a thin-walled part formed between the lubricating oil passage formed just below the roller and the surface on which the rollers roll can be reduced in size. As a result, when the inner race and the outer race are locked, roller's stress is less prone to be concentrated around the thin-walled part, and the deformation of the thin-walled part can be prevented, and therefore the degradation of the durability of the one-way clutch can be prevented.

Abstract: A component surrounding an axis for directing fluid along a flow path in a transmission for a motor vehicle. The component includes a first wall having a thickness formed with an inner surface facing the axis, and a hole spaced about the axis and extending through the thickness of the wall, and a channel formed in the wall, communicating with the hole and the inner surface, including a base having a length that extends angularly about the axis, and having a depth that increases along the length as distance from the hole decreases.

Abstract: A supercharger drive pulley includes an inner hub and an outer drive pulley. One of the inner hub and the outer drive pulley is drivingly connected to a drive shaft of a supercharger for driving the supercharger and the other of the inner hub and the outer drive pulley is drivingly connected to an engine for being driven by the engine. A one way drive clutch is drivingly engaged between the inner hub and the outer pulley to allow driving torque from the engine to be transmitted to the supercharger in one direction and to allow the supercharger to freewheel in conditions where it overruns the engine.

Abstract: The present invention relates to a retroaction-protected transmission module for a motor for driving a retroaction-endangered load, in particular of a gate, having a transmission (11) having a drive side and an output side and a blocking clutch (1) having a clutch state and a blocking state, the blocking clutch including a driveshaft (12), which has driver parts (2) on one end, between which clamping bodies (3) are movably located, which surround a head (4) of an output shaft (13), the head (4) of the output shaft (13) having coupling faces (5), which are in contact with the clamping bodies (3) in the clutch state and via which, in the clutch state, the clamping bodies (3) carried by the driver parts (2) in the event of a rotation of the driveshaft (12) transmit a torque from the driveshaft (12) to the output shaft (13), and a braking ring (6) having a clamping face (7) being located around the clamping body (3), against which the clamping bodies (3) are pressed by the coupling faces (5) in the blocking state

Abstract: According to the present invention, in a one-way clutch used under an environment where lubricating oil including organic molybdenum exists, at least a part of at least one of a plurality of engaging members constituting the one-way clutch is subjected to surface treatment mainly including an element having no affinity with respect to a molybdenum element.

Abstract: An output shaft air/oil separator system comprises an outer housing, an oil passage, a spline shaft having a cavity formed therein that communicates with the oil passage, an output shaft disposed at least partially within the spline shaft cavity that has a first section spaced apart from an inner surface of the spline shaft to form a gap therebetween in communication with the spline shaft cavity and a second section contacting at least a portion of the spline shaft inner surface, a housing cavity defined by at least a portion of an outer surface of the spline shaft and the outer housing, an annular groove formed in the spline shaft communicating with the spline shaft cavity, and at least one port extending between the spline shaft inner and outer surfaces in communication with the annular groove and the housing cavity.

Abstract: An aircraft engine starter assembly provides for liquid cooling of the clutch assembly and overrunning engine by integrating a pitot pump in the system. The system includes a starter motor, a torque transfer connection, a clutch assembly and the pitot pump. The torque transfer connection is adapted to be coupled to the aircraft engine. The clutch assembly is coupled to one of the starter motor or the torque transfer connection. The pitot pump is coupled to one or both of the torque transfer or the clutch assembly via a first oil line and a second oil line. The pitot pump comprises a pitot tube in fluidic communication with an oil reservoir for the delivery of oil under pressure to lubricate one or both of the torque transfer or the clutch assembly.

Abstract: A one-way clutch includes a cam plate formed with notches, a rocker plate formed with pockets mutually spaced angularly about an axis, each pocket including an open axial end, and a surface that closes each pocket at an end opposite the open axial end of each pocket. A rocker is located in a respective pocket for movement toward and away from engagement with a notch on the cam plate. Springs are supported on the rocker plate, each spring urging a rocker toward engagement with a notch.

Abstract: A roller type one-way clutch includes an outer ring and an inner ring disposed concentrically with each other for rotation relative to each other, the outer ring having an axially extending annular inner peripheral cam surface, the inner ring being disposed in the outer ring and having an annular outer peripheral raceway surface, and a plurality of rollers disposed between the outer ring and the inner ring for transmitting torque between the outer peripheral raceway surface and the inner peripheral cam surface. The rolling surface of each of the rollers has a recess depressed toward the axis thereof over the entire circumference thereof. In an alternative arrangement, an axially extending annular inner peripheral raceway surface is provided on the outer ring and an annular outer peripheral cam surface is provided on the inner ring.

Abstract: An overrunning clutch is provided that facilitates the use of grease lubrication and use of the clutch in high speed and/or high torque applications. In accordance with one aspect of the invention, a seal is disposed between the rollers in the clutch and a bearing that is disposed between the input and output members and the inner raceway, outer cam surfaces, rollers and bearing are lubricated with grease. In accordance with another aspect of the invention, the mass of the rollers and the stiffness of the springs acting on the rollers are selected to provide a high natural frequency for the roller and spring system to enable the clutch to better withstand torsional vibration in high speed and/or high torque applications.

Abstract: An overrunning clutch (24) has first and second clutch members (30, 32) having coupling faces (34) and (36) between which spring biased pivotal struts (40) and locking formations (44) cooperate to prevent relative rotation in only one direction. A snap ring (48) and thrust plate (50) cooperate to axially secure the clutch members (30) and (32) to each other and the thrust plate has a retainer (52) projecting therefrom to prevent rotation. The retainer (52) in certain embodiments is received between ends (58) of the snap ring (48) to prevent thrust plate rotation.

Abstract: A torque converter for a vehicle includes a front cover integrally formed with a boss to which a crank shaft of an engine side is connected, an impeller connected to the front cover to rotate together with the front cover, a turbine disposed facing the impeller, a stator disposed between the impeller and the turbine to convert flow of oil directed from the turbine, a lockup clutch mechanism for directly connecting the engine to the turbine. A blade of the impeller and/or the turbine is provided with inner and outer projections coupled to shell and core of the impeller and/or the turbine. Each of the inner and outer and inner projections includes a base located on a slit formed on the shell/core and an extending section extending from the base, the extending section being bent after penetrating the slit.

Abstract: A one-way clutch is proposed which is low in surface pressures and durable. It includes an inner ring having a cylindrical outer surface, and an outer ring having a cylindrical inner surface defining a wedge-shaped space in cooperation with the cylindrical outer surface of the inner ring. A ring-shaped wedge member is disposed in the wedge-shaped space. The wedge member is formed with a cylindrical outer surface and a cylindrical inner surface having a center of curvature that is radially offset from the center of curvature of the cylindrical outer surface of the wedge member. A resilient member is provided between the inner ring and the wedge member to bias the wedge member in a direction to be wedged into the narrow portion of the wedge-shaped space. When the inner ring is rotated in one direction, the wedge member will be brought into wedging engagement with the cylindrical surfaces of the inner and outer rings. Torque is thus transferred from the inner ring to the outer ring.

Abstract: A one-way clutch includes an outer race, wherein a plurality of windows are formed in one plate-like member, is placed so as to be relatively rotatable with respect to an inner race wherein two plate-like members overlay each other and a ball raceway surface is formed by curved portions formed in outer peripheries of the plate-like members. Balls are accommodated in the windows. The face of each of the windows on the side of the outer periphery of the outer race is formed as a cam surface wherein the distance with respect to the ball raceway surface is reduced in a circumferential direction. Urging means for urging the balls in the direction is disposed. The maximum width of the one-way clutch is equal to the ball diameter and the thicknesses of the two plate-like members constituting the inner race, so that a one-way clutch of a reduced width is obtained.

Abstract: A rotation transmission device includes an input member, an outer ring mounted around the input member, a two-way clutch and an electromagnetic clutch for selectively engaging and disengaging the two-way clutch, both clutches being mounted between the input member and the outer ring. The electromagnetic clutch includes an armature coupled to a retainer of the two-way clutch so as to be non-rotatable and axially movable relative to the retainer. By energizing its electromagnet, the armature is pulled toward the electromagnet until it is pressed against a rotor fixed to the outer ring. The input member is formed with an oil supply passage. Oil is supplied through the oil supply passage and an oil passage defined between the outer periphery of the input member and the inner periphery of the rotor into a space between the two clutches. The oil passage has a restricted, narrow portion to limit the amount of oil supplied into the above space.

Abstract: An aircraft engine starter assembly has a starter motor, a notch containing plate rotationally coupled to the starter motor or the aircraft engine, a strut pocket containing plate rotationally coupled to the other of the starter motor or the aircraft engine, arranged facing the notch containing plate and spaced apart therefrom by an inter-plate space, wherein the strut pocket containing plate has a spring loaded strut mounted in at least one pocket thereof, aligned to engage a notch as the two plates rotate with respect to each other about a common centerline, so that the strut engages the notch to start the engine and releases from the notch when the engine is running. A lube oil pump is provided to force oil into the inter-plate space and bearings are provided coupled to the two plates to react the expansion forces created by the pressurized lube oil.

Abstract: A oneway clutch supporting structure comprises a oneway clutch which comprises a stationary race element and a rotational race element to be fitted in a rotational member, the race elements respectively having peripheral surfaces separated from each other in the radial direction to face each other, a plurality of bearings for coaxially retaining the race elements and disposed inside an annular space between the stationary race element and the rotational race element with separated from each other at a predetermined angle, torque transmission members disposed between the peripheral surfaces of the stationary race element and the rotational race element, and a stationary member for supporting the stationary race element. A clearance between the stationary member and the stationary race element is smaller than a clearance between the rotational member and the rotational race element.

Abstract: A two-way clutch comprises an inner race element provided with one of a cam surface and a cylindrical surface, an outer race element provided with the other of the cam surface and the cylindrical surface, torque transmission members interposed between the cam surface and the cylindrical surface for performing torque transmission therebetween, springs for biasing the torque transmission members in a direction substantially along the cam surfaces, and a cage for retaining the torque transmission members and the biasing means, the cage being supported to be rotatable relative with the cam surfaces. The cage is elastically retained by elastic retaining means at a position where the torque transmission members are in the respective neutral conditions with respect to the cam surface. The springs are provided only on one side of the torque transmission members.

Abstract: The over-running clutch pulley of a preferred embodiment of the invention includes a sheave member (20), a hub member (22) located substantially concentrically within the sheave member, a clutch member (24), a clutch lubricant (26) located near the clutch member, a bearing member (28) located between the sheave member and the hub member, and a bearing lubricant (30) located near the bearing member, which cooperate to rotationally engage an input device (12) and an output device (14). The sheave member preferably includes a sheave input section (32) adapted to engage the input device, and a sheave clutch section (34) defining a sheave clutch surface (36). Similarly, the hub member preferably includes a hub output section (38) adapted to engage the output device, and a hub clutch section (40) defining a hub clutch surface (42). The clutch lubricant (26) and the bearing lubricant (30) preferably include a base material selected from the group comprising ether, esther, and mineral oil.

Abstract: A pump mechanism is constituted by a groove which is inclined with respect to a diametrical direction on a side surface of an inner wheel, and a side surface of an inner diameter side extending portion which opposes to the side surface, and a lubricating oil is supplied to an inner wheel raceway surface and a sprag by the pump mechanism.

Abstract: A oneway clutch supporting structure comprises a oneway clutch which comprises a stationary race element and a rotational race element to be fitted in a rotational member, the race elements respectively having peripheral surfaces separated from each other in the radial direction to face each other, a plurality of bearings for coaxially retaining said both elements and disposed inside an annular space between the stationary race element and the rotational race element with separated from each other at a predetermined angle, torque transmission members disposed between the peripheral surfaces of the stationary race element and the rotational race element, and a stationary member for supporting the stationary race element. A clearance between the stationary member and the stationary race element is smaller than a clearance between the rotational member and the rotational race element.

Abstract: A hydrodynamic torque converter is provided with a converter housing to hold at least one pump wheel, one turbine wheel, and one stator to form a hydrodynamic circuit and with at least one axial bearing arrangement for supporting the stator. At least one support element has a bearing side which rests against the axial bearing arrangement, and a stator side which rests against a component of the stator and is designed with at least one flow passage for viscous medium, which forms a connection between at least one flow conduit and the hydrodynamic circuit. The flow passage has a flow bed and, contiguous with that, at least one boundary wall, which leads from the flow bed to the axial level of the corresponding support element side.

Abstract: A one-way clutch includes: an inner race; an outer race; a plurality of engaging members disposed between the inner and the outer races; a pair of retainers for retaining the engaging members; springs for urging the engaging members in one direction; and a pair of end bearings which are respectively disposed on both sides between the inner race and the outer race, each of the end bearings being formed into a U-shaped cross section by a first hollow cylindrical portion fitted to an outer peripheral surface of the inner race, a second hollow cylindrical portion fitted to an inner peripheral surface of the outer race, and an annular portion connecting the first and the second hollow cylindrical portions. The one-way clutch is characterized in that recessed portions (11) are formed at least in the inner peripheral surface (8a) of the first hollow cylindrical portion (8) of each of the end bearings (7).

Abstract: A two-way clutch comprises an inner race element provided with one of a cam surface and a cylindrical surface, an outer race element provided with the other of the cam surface and the cylindrical surface, torque transmission members interposed between the cam surface and the cylindrical surface for performing torque transmission therebetween, springs for biasing the torque transmission members in a direction substantially along the cam surfaces, and a cage for retaining the torque transmission members and the biasing means, the cage being supported to be rotatable relative with the cam surfaces. The cage is elastically retained by elastic retaining means at a position where the torque transmission members are in the respective neutral conditions with respect to the cam surface. The springs are provided only on one side of the torque transmission members.

Abstract: An end bearing, a one-way clutch device and a method of manufacturing the end bearing, capable of preventing abrasion or scorching of the end bearing while improving the productivity. The annular end bearing which is interposed between an inner race and an outer race of the one-way clutch device and is in a slidable contact with the inner race or the outer race when it is operated, wherein a recess having the depth of 5 to 30 &mgr;m is formed on a slidable contact surface with inner race or the outer race. The method comprises a blanking step of blanking an annular blank from a metal plate, a recess forming step of forming a recess in a predetermined portion of said blank, and a drawing step of forming a flange on said blank by drawing, wherein the above recess forming step is executed before or after the blanking step, or at the same time with the blanking step.

Abstract: The present invention provides a ratchet one-way clutch comprising an inner race, outer race disposed for a relative rotation respect to the inner race and in concentric with the latter, recessed portions formed in one of an outer periphery of the inner race and an inner periphery of the outer race along a circumferential direction, pawl members formed on the other of the outer periphery of the inner race and the inner periphery of the outer race and adapted to be fitted into the recessed portions, springs for biasing the pawl members toward the recessed portions, and pockets for containing the pawl members and the springs, and wherein a discharge path is formed in the outer race, or a stator using such a ratchet one-way clutch.

Abstract: An assembly of a one-way clutch and a bearing in which a thrust load due to a stator is absorbed and a dynamic pressure is generated is configured to prevent an abrupt temperature rise even when the pressure becomes high so that wear of sliding faces is prevented. The assembly of the one-way clutch and bearing is attached a stator of a torque converter. Dynamic pressure grooves and an escape groove serving as the bearings are formed in at least one of opposing faces of a flange portion formed on the stator and a pump member, or opposing faces of a bearing support which is placed on the side opposite to the flange portion of the stator, and a turbine member.