Abstract: A crank-type drive device for a loom including a crank hub non-rotatably attached to a drive shaft, a holder non-rotatably attached to the crank hub, an eccentric shaft supported by the holder, and a connecting member rotatably supported by the holder via the eccentric shaft and a bearing and connected to a drive target member of a loom. The crank hub includes a plate-shaped attaching part which an attached surface of the holder is attached thereto and has an attaching surface in contact with the attached surface, and a fixing mechanism for fixing the crank hub to the drive shaft, the drive shaft being inserted and fitted in the fixing mechanism. The crank hub is configured so that the fixing mechanism is positioned on the attaching surface-side of the attaching part in a plate thickness direction.

Abstract: Piston assemblies and clutch assemblies including the piston assemblies are disclosed. The clutch assembly may include at least one rotatable clutch plate, a reaction plate arranged to rotate with and apply a force to the at least one rotatable clutch plate, and a piston including a first segment having a radially extending portion. At least one bearing rolling element may be arranged between the reaction plate and the radially extending portion of the piston to permit relative rotational motion therebetween. A bearing cage may be retained by the reaction plate. The first segment of the piston may further include a retaining portion configured to retain the reaction plate. The retaining portion may include an axially extending portion having a radial bump, wherein the radial bump configured to retain the reaction plate. The radial bump may be disposed on a distal end of the retaining portion.

Abstract: The disclosed transmission shift fork has improved contact areas that engage a gear that is shifted into and out of engagement with the drive train. As a result of the improved contact areas the gear and the shift fork have a more stable alignment that reduces wear during shifting and avoids uneven wear of the parts. The shift fork has an elongated pin that is positioned inside of a biasing spring. The pin has a length that is greater than the length of a compressed biasing spring, which contributes to increased stability and reduced wear from linear movement.

Abstract: A method of forming a stator for a torque converter is provided. The method includes casting a stator casting to include a body and blades on an outer circumferential surface of the body. The body includes excess material at an axial surface thereof. The method also includes machining the excess material to balance the stator casting. A torque converter is also provided. The torque converter includes a turbine, an impeller and a stator axially between the turbine and the impeller. The stator includes a stator casting including a body and blades on an outer circumferential surface of the body. The body includes a material segment at an axial surface thereof.

Abstract: A one-way clutch, including: an inner race including a first outer circumference with a first plurality of ramps and at least one wedge plate including: a first inner circumference with a second plurality of ramps; a second outer circumference; and a first plurality of slots: passing through material forming the at least one wedge plate in an axial direction; including respective first ends open to the second outer circumference; and including respective second ends radially outward of the first inner circumference and enclosed by the at least one wedge plate. The one-way clutch includes an outer race including a second inner circumference. The outer race is able to rotate with respect to the inner race in a first circumferential direction. Rotation of the outer race in a second circumferential direction, opposite the first circumferential direction, causes the rotation of the outer race to lock to rotation of the inner race.

Abstract: A clutch for a motor vehicle, preferably for engaging and disengaging a drive train for all-wheel drive vehicles, comprises a first shaft, a second shaft arranged coaxially to the first shaft, a clutch sleeve which is moveable in the axial direction relative to the first shaft and the second shaft for causing a form-fit coupling or decoupling of the first shaft and the second shaft, and a coil which can be powered, wherein a plurality of engagement bodies are connected rotationally fixedly to the first shaft, wherein the coil which can be powered is arranged coaxially to the axial direction, wherein by powering the coil, the clutch sleeve can be moved in the axial direction, wherein by moving the clutch sleeve in the axial direction, the engagement bodies can be pressed over part of their height into receivers, and wherein the receivers are connected rotationally fixedly to the second shaft.

Abstract: A transmission clutch assembly includes at least one rotatable clutch plate or friction plate, a reaction plate, a non-rotatable piston, at least one bearing roller, and a cage. The reaction plate is arranged to rotate with and apply a force to the at least one rotatable clutch plate or friction plate. The non-rotatable piston is arranged for sealing engagement with a transmission housing. The at least one bearing roller arranged between and contactable with the reaction plate and the piston to permit relative rotational motion therebetween. The cage is for positioning the at least one roller and is retained by the reaction plate or the piston.

Abstract: A transfer case is provided with a primary shaft which is selectively engagable with a secondary shaft via a clutch mechanism. The clutch mechanism is inclusive of a friction pack. A hub of the clutch mechanism is connected on the primary shaft and the clutch housing is torsionally fixed with a primary sprocket rotatively mounted on the primary shaft. A reservoir system is provided for delivering splashed oil axially along the primary shaft overlapping the friction pack. The reservoir system has a collective fluid receptacle that is connected via a stationary passage with a lubrication passage radially inward of the friction pack of the hub.

Abstract: A lubricating structure of a transmission is capable of supplying a lubricating oil with respect to a clutch promptly and stably. The lubricating structure of the transmission includes a first oil passage 53 which extends in a second input shaft 18 from one end side thereof to a first position, and the lubricating oil is supplied from the one end side, a second oil passage 54 which connects to the first oil passage 53 at the first position and extends in the second input shaft 18 to a second position, a first lubrication hole 55 which distributes the lubricating oil to the second clutch 20 at the first position, and a second lubrication hole 56 which distributes the lubricating oil to a transmission mechanism 40 at the second position.

Abstract: A clutch actuator unit is provided that includes a housing having a mounting space and a penetration aperture for receiving an operating rod. A slide pad and slider are disposed along an inner side surface of the mounting space, and are configured to move back and forth within the housing. An operating rod that is connected to the slider through the penetration aperture is moved back and forth, along with the slider and slide pad, through the aperture via a drive portion. A stopper is also integrally formed along the front surface of the slide pad to limit the movement of the slider accordingly. In doing so, the disclosed actuator is able to dynamically locate certain stroke positions and provide an improved shifting operation.

Abstract: A launch and disconnect clutch for the electric motor of a P2 hybrid powertrain is compact and provides improved operation. The clutch is mounted between the engine and transmission in the space formerly occupied by the torque converter. The clutch assembly is configured so that actuation, compensation and cooling are provided by only two oil channels. The clutch utilizes single-sided reaction plates which achieve high clutch gain thereby providing high torque capacity under electric operation and improved launch shudder characteristics.

Abstract: A lubricating oil passage 113 includes an upstream oil passage 113a defined coaxially in a rotational shaft 71 for supplying lubricating oil to lubricated parts and a downstream oil passage 113b connected to the upstream oil passage 113a for supplying lubricating oil to canceler chambers 97, 107. The downstream oil passage 113b may be smaller in diameter than the upstream oil passage 113a and having at least a portion extending parallel to the axis of the rotational shaft 71. Control oil passages 111, 112 which have axes parallel to the axis of the rotational shaft 71 are defined in the rotational shaft 71 such that at least a portion of the control oil passages 111, 112 is disposed in a range wherein the downstream oil passage 113b is provided in a direction along the axis of the rotational shaft 71.

Abstract: The present invention provides an arrangement of a vehicle with a clutch release bearing and a lubrication path through a bell housing of a transmission.

Abstract: A locking plate for use in an air turbine starter has a lock plate body including an oil slinger extending away from a base. The base is positioned on an outer peripheral surface of a clutch frame. The slinger extends away from the base for a distance, and a ratio of the distance to a thickness of the base is ten and thirty. A clutch and air turbine starter, and a method of assembly are also disclosed.

Abstract: A release bearing assembly for an automotive clutch connecting an engine with a transmission is provided. The release bearing assembly can have a front slinger with a main body with a generally radial planar portion that at least partially covers an annular spacing between the bearing inner and outer races of the release bearing assembly. A rear slinger is provided which contacts an outer race of the bearing and forms an annular groove portion adjacent the annular spacing between the inner and outer races.

Abstract: In a dry clutch, the space between dry-clutch plates and a bearing, which bearing is interposed between a first piston and a second piston, is blocked off. Also provided is a structure for supplying the bearing with lubricating oil, and thus it is possible to provide the dry clutch, without causing upsizing the bearing.

Abstract: A pressure plate is movable in an axial direction to cause multiple driving friction plates and driven friction plates to come in pressure contact with each other. The pressure plate is biased by a clutch spring in a direction to bring the driving friction plates and the driven friction plates in pressure contact with each other. When acceleration torque is changed, an assist mechanism increases the pressure-contact force of the pressure plate. A pressure plate and a clutch inner are connected together and are capable of being separated from each other in an axial direction. When an assist mechanism increases a pressure-contact force of the pressure plate, the pressure plate is moved in a direction to bring driving and driven friction plates into pressure contact with each other, while the clutch inner is moved relative to the pressure plate in the same direction so as to be detached from the pressure plate.

Abstract: A compact universal fluid-actuated clutch employs a pair of tapered roller bearings between a cover plate and output shaft, the roller bearings serving to not only rotationally maintain the output shaft, but receive and transfer clutch reactionary forces therethrough. Lubrication to the tapered roller bearings serves to lubricate not only a thrust bearing through which the actuation forces are transferred, but also to lubricate the clutch, as well, in the embodiment of a wet clutch. Also provided is an output shaft brake assembly, which is also lubricated through the tapered roller bearings, and which is of a small compact nature, consisting of a piston rotatably secured to the end cover, and a rotor operatively attached to the output shaft. The invention substantially eliminates the need for rotary unions and rifle boring of the output shaft, and allows for adaptation of the shaft to direct or belt drive equipment connections.

Abstract: A multi-plate clutch system includes: a pressure plate which is biased by a clutch spring in a direction in which driving friction plates and driven friction plates are brought into pressure contact with each other; and at least one of assist device configured to increase a pressure contact force when torque is changed for acceleration and the slipper device configured to decrease the pressure contact force when the torque is changed for deceleration. A ring member whose inner peripheral surface is put in sliding contact with an outer peripheral surface of one cam plate out of paired cam plates, which are included in at least one of the assist device and the slipper device, is fixed to a clutch inner, and oil discharging passages for guiding oil to a sliding contact portion between the one cam plate and the ring member are provided in outer peripheral edge portions of concave cams formed in the one cam plate.

Abstract: A device for sealing a double clutch transmission of a motor vehicle, with a transmission housing, in which are arranged a clutch chamber with clutch oil and a double clutch, a transmission chamber with transmission oil and a double clutch transmission wheel set and two co-axial drive shafts disposed, one inside the other. One drive shaft is an interior central shaft which extends inside the transmission chamber from the end of the second hollow drive shaft. The two drive shafts each have a sealing element to seal the clutch chamber from the transmission chamber. A mounting component is situated inside and fixed to the transmission housing to support two adjacent sealing elements. A first sealing element forms a seal radially on the hollow drive shaft and a second sealing element forms a seal radially on the central drive shaft to provide a reliable seal and offer a simple ventilation and leakage detection.

Abstract: A drive force transmitting apparatus comprises a dry clutch, a hydraulic cylinder, a piston arm, an elastic partitioning member, a first seal member and a leakage lubricating fluid recovery path. The elastic partitioning member prevents lubricating fluid that has leaked from a sliding portion of a piston of the hydraulic cylinder from flowing into the dry clutch. The first seal member is disposed between opposing surfaces of a cylinder housing and a clutch cover at a position downstream from the elastic partitioning member in a leakage flow direction of lubricating fluid that has leaked. The leakage lubricating fluid recovery path is at least partially formed by a gap between the cylinder housing and the clutch cover, such that lubricating fluid leaking past the piston is conveyed to an inside of the transmission while maintaining a sealed state established by the elastic partitioning member and the first seal member.

Abstract: An automatic transmission includes a starting apparatus having a housing that rotates based on torque of a driving source, and a clutch mechanism portion positioned in the housing; an oil pump that is positioned on a side opposite to the driving source with respect to the starting apparatus in a rotational axis direction of the housing, and is driven by transmission of rotation of the housing; an oil pump housing in which the oil pump is accommodated; and a speed change mechanism that is positioned on a side opposite to the starting apparatus with respect to the oil pump housing in the rotational axis direction, and has an input shaft, which extends through the oil pump and the oil pump housing and is connected to the clutch mechanism portion.

Abstract: A rotation transmission device has a housing having an end wall with a shaft hole. An input shaft is inserted through the shaft hole, and an inner ring is mounted around the end of the input shaft inside the housing. A two-way clutch is provided between the inner ring and an outer ring disposed around the inner ring, and an electromagnetic clutch is provided adjacently, controlling engagement and disengagement of the two-way clutch. A first bearing mounted between radially facing surfaces of the housing and the outer ring is an open bearing, provided with a labyrinth on its end near the side of the open end of the housing. A second, single-sealed bearing is provided between facing surfaces of the inner ring and the outer ring, supporting these rings rotatably relative to each other. Lubricating grease with the same quality is used for the second bearing and the two-way clutch.

Abstract: A multiplate clutch includes at least one driving friction plate configured to be rotated by a driving portion, at least one driven friction plate provided to face the at least one driving friction plate and configured to rotate the driven portion, a pressure applying unit configured to apply a pressing force to the at least one driving friction plate and the at least one driven friction plate to transmit the driving force from the driving portion to the driven portion via the at least one driving friction plate and the at least one driven friction plate, a first cam unit including first concave-convex cams and configured to increase the pressing force in accordance with an increase of the driving force, and a second cam unit configured to function as a back torque limiter mechanism and including second concave-convex cams which are different from the first concave-convex cams.

Abstract: A drive arrangement comprising a drive shaft, a clutch arrangement operable, upon axial movement of the drive shaft occurring, to interrupt drive to the drive shaft, an axially movable interrupt shaft, a gear arrangement whereby the interrupt shaft is driven for rotation by the drive shaft at a speed slower than the rotary speed of the drive shaft, a disconnect device operable to cause axial movement of the interrupt shaft, and a transmission device for transmitting axial movement of the interrupt shaft to the drive shaft.

Abstract: A starting device includes a housing; an output side member; a clutch mechanism; a working oil passage that supplies working oil to a hydraulic chamber of the clutch mechanism from an oil pressure source side; and a lubricating oil passage including a supply oil passage that supplies lubricating oil to the housing from the oil pressure source side and a return oil passage for returning the lubricating oil to the oil pressure source side from the housing, wherein the working oil passage and the lubricating oil passage are formed to overlap at least partially in an axial direction.

Abstract: A release bearing assembly has a roller bearing, an enclosure and a slinger. The enclosure has first and second flange portions. The slinger has a body portion sized for radial disposition within an inner diameter of the first flange portion. A lip portion extends from the body portion and defines a channel between itself and the enclosure.

Abstract: An engine with a centrifugal clutch which can efficiently cool and lubricate the centrifugal clutch. The engine supports a pair of journal portions of a crankshaft by a bearing such as a ball bearing, a roller bearing, or the like, as well as a bearing metal. There is provided first oil supplying means formed in the crankshaft. The first oil supplying means has an oil passage for the first oil supplying means which is communicated with a main oil passage through an oil hole formed in the bearing metal and extends through a fitting portion of a crankpin to reach the centrifugal clutch.

Abstract: The present invention provides an arrangement of a vehicle with a clutch release bearing and a lubrication path through a bell housing of a transmission.

Abstract: A lubricating oil feeding device includes a carrier and a carrier cover that are attached to both ends of the pinion shaft of the planetary gear and that are arranged in an axial direction of an input shaft of the automatic transmission; an oil sump groove that opens in a peripheral direction and the axial direction of the input shaft, the oil sump groove is structured by a wall portion of the carrier cover formed radiating from a center of the input shaft, a base portion of the carrier cover that extends in an axial direction of the pinion shaft, and an end portion on an inner peripheral surface of a clutch hub that is connected with the base portion; and an oil passage that feeds lubricating oil from the oil sump groove to the pinion shaft, and provides the lubricating oil for the planetary gear.

Abstract: A hydrodynamic clutch includes a hydrodynamic circuit formed by at least a pump wheel and a turbine wheel in a clutch housing with a drive-side housing wall extending to the axis of rotation, and a bridging clutch with a piston capable of shifting axially relative to the drive-side housing wall. The turbine wheel is connected to a hub, which is connected for rotation in common to a takeoff, and is axially supported between the hydrodynamic circuit and a flow guide element, which is supported between the hub and the drive-side housing wall, and has first and second flow passages which are axially offset from each other. The flow guide element has a drive-side end with an axial bearing area which can be moved into axial contact with an axial bearing, which is either an axial contact surface on the drive-side housing wall or is assigned to the drive-side housing wall.

Abstract: A centrifugal clutch for a vehicle includes a clutch housing having friction plates, a clutch boss having clutch plates, a pressure plate, and roller weights that press the pressure plate in a direction such that the friction plates and the clutch plates are brought into frictional contact with each other when the roller weights receive a centrifugal force. The vehicle power unit includes a main shaft which has an oil supply passage formed therein. The clutch includes a first oil supply path that supplies oil via the oil supply passage to the friction and clutch plates. The clutch includes a second oil supply path that supplies oil via the oil supply passage to the roller weights. The first and second oil supply paths are formed individually to allow independent adjustment of oil supply to each path.

Abstract: A synchronizing mechanism includes a synchronizer hub, a coupling sleeve, a clutch gear and a synchronizer ling. The synchronizer hub is fixedly coupled to a rotational shaft. The coupling sleeve is coupled to an outer circumference of the synchronizer hub with a spline engagement to slide with respect to the rotational shaft in an axial direction upon an operation of a shift fork. The clutch gear is rotatably supported on the rotational shaft. The synchronizer ring is configured and arranged to produce a synchronized load between the coupling sleeve and the clutch gear. The coupling sleeve includes a guide section configured and arranged to guide at least a portion of lubricating oil supplied from a shift fork engagement part of the coupling sleeve toward at least one of the clutch gear and the synchronizer ring.

Abstract: The invention relates to a transmission module (10) for an engine-transmission unit, said module comprising an input shaft (11) for connecting to a heat engine, an output shaft (12) for connecting to a gearbox, and a clutch (30) connecting said two shafts. The inventive module also comprises: an independent casing (16) comprising a first half-shell (17) and a second half-shell (18), said two half-shells forming a sealed receiving element (22) containing the clutch (30) which is naturally in the engaged position; a mechanical element (35) for maintaining the clutch (30) in said engaged position by means of a piston in the form of a disk; a hydraulic control circuit (40, 41) for acting directly on the piston against the mechanical element, in the disengaged position of said clutch (30); and a hydraulic circuit (50, 52, 53, 55, 56) for lubricating and cooling the clutch. The invention can be applied to an engine-transmission unit for motor vehicles.

Abstract: A clutch release bearing assembly is provided that includes a housing that encloses a bearing, release sleeve and bushing. The housing defines a reservoir for grease that is supplied to the bearing and bushing. Slots are provided in the release sleeve through which grease is provided to the bushing and the input shaft through holes formed in the bushing. An end cap seal prevents contaminants from entering the clutch release bearing assembly on one end and a multi-lip seal is provided between the housing and release sleeve on the other end of the housing.

Abstract: A clutch for effectively prevents a clutch outer from tilting at the time when torque is varied. The clutch includes damper springs for transmitting, to a clutch outer, torque inputted to a driven gear, and a thrust washer for regulating positional change of a position of the clutch outer with respect to the driven gear in a direction of the shaft axis. The thrust washer is disposed between the driven gear and the clutch outer in an axial direction. The thrust washer is disposed only outward of the damper springs in a radial direction.

Abstract: A clutch-release device for a friction clutch installed in a housing in a vehicle includes a guide tube and a clutch-release bearing, which is free to shift position in the axial direction on the tube by means of a bearing carrier. One bearing ring of the clutch-release bearing is connected to the clutch-release element of the friction clutch to transmit the actuating force for actuating the friction clutch. The other bearing ring is mounted nonrotatably on the bearing carrier. For lubrication, the clutch-release bearing is provided with a relubrication unit provided with a freely controllable actuation unit for the as-needed lubrication of the clutch-release bearing.

Abstract: The present invention provides a multiplexed control system, employing a single solenoid valve, to selectively control the damper lock-out clutch and motor/generator cooling of an electronically variable hybrid transmission. The present invention also contemplates a method of selectively controlling damper lock-out clutch engagement and motor/generator cooling for an electrically variable hybrid transmission control.

Abstract: A transmission has an oil drain passage for connecting an oil reservoir with a mission case in a pump casing. The automatic transmission has also a retainer serving as a shielding member to shield between a discharge opening of the oil drain passage from at least part of a multistage transmission mechanism. This ensures that breather oil blow, which is caused by the spattering and stirring of operating oil by the high-speed drum member, is shielded from at least part of the transmission mechanism.

Abstract: A clutch assembly for a mobile vehicle clutch includes a sleeve axially disposed on a shaft and engaged to actuate clutch springs or levers for opening of a clutch. The sleeve is attached to a clutch release bearing that is moved axially along the input shaft by a clutch fork. Engagement pads of the release fork engage rollers disposed on the clutch release bearing. The rollers on the clutch release bearing substantially eliminate transmission of non-axial force to the clutch release bearing and sleeve. The clutch release bearing includes an internal cavity in communication with a lubrication fitting. The rollers include hollow shafts in communication with the internal cavity of the clutch release bearing such that the lubricant injected into the internal cavity lubricates the rollers.

Abstract: A bearing release assembly includes a release bearing housing actuated by a release fork to move axially along a rotating shaft. The release bearing housing moves a release sleeve axially along the rotating shaft to disengage clutch levers in response to pivotal movement of a release fork. The release sleeve includes an oil-impregnated powdered metal insert in sliding contact with the rotating shaft. The oil-impregnated powdered metal insert is self-lubricating to eliminate the need for periodic maintenance and lubrication of the release sleeve simplifying operation and maintenance of a clutch assembly.

Abstract: A clutch assembly for a mobile vehicle clutch includes a sleeve axially disposed on a shaft and engaged to actuate clutch springs or levers for disengaging a clutch. The sleeve is attached to a clutch release bearing that is moved axially along the input shaft by a clutch fork. A contact surface of the release fork engages a contact surface disposed on lugs of the clutch release bearing. At least one of the contact surfaces includes a self-lubricating material to reduce friction between the release for and the clutch release bearing during actuation of the clutch assembly.

Abstract: Apparatus for transmission of torque in the power train of a motor vehicle has coaxial rotary first and second torque transmitting devices, each of which can constitute a simple or a composite flywheel, and a torsional vibration damper operating between the two devices. The damper is installed in an annular chamber which is sealed at its periphery and is flanked by two sidewalls of the first torque transmitting device. The damper includes a washer-like partition which is affixed to the second torque transmitting device and has arms extending radially outwardly into the chamber. The radially inner part of the annular chamber is sealed by annular seals having annular carriers borne by the sidewalls at opposite sides of the partition, and deformable annular lips secured to the carriers and bearing upon the respective sides of the partition. The carriers and the lips consist of different materials and the seals serve to prevent penetration of impurities into and/or the escape of lubricant from the chamber.

Abstract: A clutch assembly for a mobile vehicle clutch includes a sleeve axially disposed on a shaft and engaged to actuate clutch springs or levers for opening of a clutch. The sleeve is attached to a clutch release bearing that is moved axially along the input shaft by a clutch fork. Engagement pads of the release fork engage rollers disposed on the clutch release bearing. The rollers on the clutch release bearing substantially eliminate transmission of non-axial force to the clutch release bearing and sleeve. The clutch release bearing includes an internal cavity in communication with a lubrication fitting. The rollers include hollow shafts in communication with the internal cavity of the clutch release bearing such that the lubricant injected into the internal cavity lubricates the rollers.

Abstract: In a transmitting system for a small-sized vehicle in which a crankshaft of an engine and an input shaft of a multi-stage transmission are connected to each other through a fluid transmitting device, the fluid transmitting device and a shifting clutch are mounted on the crankshaft. One of the fluid transmitting device and the shifting clutch is connected to the crankshaft, while the other is connected to the input shaft of the multi-stage transmission through a primary reducing device. Provided in the crankshaft are an upstream supply oil passage connected to an oil pump, a downstream supply oil passage connected to portions to be lubricated of the engine, a flow-in bore which permits the upstream supply oil passage to communicate with the inside of the fluid transmitting device, and a flow-out bore which permits the inside of the fluid transmitting device to communicate with the downstream supply oil passage.