Abstract: A cylindrical bi-directional wedge clutch, including: an axis of rotation; a carrier ring; a wedge plate including at least a portion disposed radially inwardly of the carrier ring; and a tapered hub disposed radially inwardly of the carrier ring, displaceable, for first and second locked modes in which the hub and the carrier ring are non-rotatably connected, in a first axial direction to contact the wedge plate and expand the wedge plate radially outwardly, and displaceable, for a free-wheel mode in which the tapered hub and the carrier ring are rotatable with respect to each other, in a second axial direction, opposite the first axial direction. For the first locked mode, the tapered hub and carrier rotate in a first circumferential direction. For the second locked mode, the tapered hub and carrier ring rotate in a second circumferential direction, opposite the first circumferential direction.

Abstract: A drive device for a motor vehicle includes a first drive unit having a driveshaft, a multi-speed transmission having an input shaft, and a vibration damper. A clutch includes a first clutch member which is coupled to the input shaft of the multi-speed transmission, and a second clutch member which is coupled to the first drive unit via the vibration damper to thereby operably connect the first drive unit with the multi-speed transmission via the vibration damper and the clutch. A second drive unit includes a driveshaft which is arranged in axis-parallel or coaxial relationship to the first drive unit. The second drive unit is coupled to the first clutch member of the clutch.

Abstract: Vehicle input shafts are disclosed. The vehicle input shafts include a bearing boss, a spline portion, a cylindrical shaft body portion and a drive end. The spline portion includes spline teeth and spline grooves that do not exit directly onto the shaft body. Instead, the spline grooves include blend out fillets that interrupt the spline grooves by providing additional material near the shaft body. The bearing boss includes an increased diameter at a central point along its axial length and decreased diameters at its first and second boss ends.

Abstract: A clutch includes an inner race and an outer race. The outer race has first and second portions that cooperate to define a split annulus with a gap defined between the first and second portions. A wedge element is radially disposed between the inner and outer races and is configured to lock the inner and outer races in response to the first and second portion being closed together.

Abstract: Methods and systems are provided for a park lock system for an automatic transmission. In one example, a park lock system may include a slideable element coupled to a park rod, a lock slot formed by the slideable element, a cam coupled to an end of a shaft, the shaft positioned within a solenoid and moveable by energization of the solenoid, and a pivotable pawl adapted to couple with the lock slot. In one example, the pivotable pawl is coupled to the lock slot by energization of the solenoid, and a position of the slideable element is locked.

Abstract: A starter freewheel is provided. The starter freewheel has a first race, a second race, a wedging gap formed between the first and second races, at least one wedging element arranged in the wedging gap, and at least one further component. The further component is in rotary drive connection with one of the races. The component is formed by at least two sheet-metal parts connected to one another in sandwich-fashion. A freewheel arrangement having a starter freewheel of this kind is also provided.

Abstract: A power-transmitting device (10) and a method of assembling a power-transmitting device (10) secures and releases driving continuity between driving and driven parts (22, 62) through at least one clutch assembly (26, 66). The power-transmitting device (10) includes an apply plate (36) axially moveable with respect to the clutch assembly (26, 66) for engaging and disengaging the clutch assembly (26, 66). A return spring (34) acting on the apply plate (36) and an apply spring (32) having a higher compression force than the return spring (34) can be located between the apply plate (36) and the clutch assembly (26, 66). A ball (38) can be engageable with a portion of the apply plate (36) for locking the apply plate (36) in engagement with the clutch assembly (26, 66) during a steady state condition and a piston (40) can drive the ball (38) into engagement with the apply plate (36) in response to application of fluid under pressure.

Abstract: In a locking type reverse input blocking clutch, smooth finished surfaces having no directionality are formed, by barrel polishing, on surfaces brought into contact with rollers while rotation is being transmitted from the input side to the output side, i.e. an inner peripheral cylindrical surface of an outer ring and a surface of a lid portion opposed to the rollers. With this arrangement, it is possible to reduce the sliding resistance between the rollers and the outer ring and between the rollers and the lid portion, without the need to reduce the forces of springs for pushing the rollers into narrow portions of wedge-shaped spaces. This in turn makes it possible to reduce the torque necessary to transmit rotation from the input side to the output side, while maintaining high locking performance.

Abstract: A transaxle includes a transaxle casing, a bi-directional overrunning clutch in the transaxle casing, a friction mechanism, and a clutch-off biasing mechanism. The bi-directional overrunning clutch includes coaxial input and output members journalled by the transaxle casing, and includes a cage disposed between the input member and the output member. Rollers carried by the cage are rotatable to follow rotation of the output member. The cage is rotatable relative to the input member according to the rotation of the rollers following the output member until the rollers contact the input member to engage the bi-directional overrunning clutch. The friction mechanism applies a friction resistance to the cage to rotate the cage relative to the input member. The clutch-off biasing mechanism biases the cage to the initial position. The friction mechanism and the clutch-off biasing mechanism are distributed in the transaxle casing at first and second end portions of the cage.

Abstract: A lock-up device includes a clutch part, an input plate, an outer peripheral side damper part, an output plate, an inner peripheral side damper part, and an intermediate member. The outer peripheral side damper part includes at least two outer peripheral side springs. The outer peripheral side springs are disposed in a circumferential alignment, act in series, and take circular-arc shapes when in a free state. The inner peripheral side damper part includes at least two inner peripheral side springs. The inner peripheral side springs are disposed in a circumferential alignment on an inner peripheral side of the outer peripheral side damper part, and act in series. The intermediate member is rotatable relatively to the input plate and the output plate, and makes the outer peripheral side damper part and the inner peripheral side damper part act in series.

Abstract: A clutch for a lift fan comprises at least one output shaft lug key positioned in a keyway of at least two output clutch plates and extending axially from one to the other of the two output clutch plates. The output shaft lug key couples the rotation of the output clutch plates to the rotation an output shaft and allows axial movement of the two output clutch plates relative the output shaft lug key. The width of an inner surface of the output shaft lug key varies along the axial length as a function of the proximity to a home axial position of each of the output clutch plates when in the disengaged position.

Abstract: An oil circuit includes an oil pan in which oil is stored, an oil supply line extending from the oil pan, a cooling oil supply line branched from the oil supply line and connected to the dual clutch of the dual clutch transmission, a lubricating oil supply line branched from the oil supply line and connected to the gearbox of the dual clutch transmission, a distribution valve disposed in the oil supply line and configured to distribute the oil to the cooling oil supply line and the lubricating oil supply line, and an oil pump configured to pump the oil from the oil pan, and a control device configured to control an operation of the oil pump and to control an opening degree of the distribution valve.

Abstract: The invention relates to a drive device for a hybrid-drive motor vehicle, having an internal combustion engine (12), a variable-speed transmission (14), and an electric machine (32) connected downstream of the variable-speed transmission (14). According to the invention the electric machine (32) is arranged in the motor vehicle as an independent structural unit (16) and is connected by at least one connecting shaft (20, 46) to one of the shafts (38, 40) of the variable-speed transmission (14).

Abstract: An assembly having a clutch collar, a clutch collar, and a method of manufacturing a clutch collar. The clutch collar may have clutch collar teeth that are continuously curved in a direction that extends away from an axis. A dovetail profile may be provided with the clutch collar teeth.

Abstract: A centrifugal clutch is disclosed. The clutch may include an inner rotating element whose outer periphery includes a plurality of ramps and at least one centrifugal weight device surrounding the inner rotating element, which includes a plurality of peripherally distributed centrifugal weights and whose inner periphery includes a plurality of counter ramps for forming a positive frictional engagement with the ramps of the inner rotating element. It may further include an outer rotating element surrounding the at least one centrifugal weight device, wherein the centrifugal weights can be pressed outwards through a friction lining against an inner periphery of the outer rotating element in opposition to the action of a spring arrangement. The centrifugal weight device may be generally formed by an annular plate structure including at least one plate element, wherein the plate structure includes a plurality of peripherally distributed peripheral sections that form the centrifugal weights.

Abstract: A clutch disk (10) for a motor vehicle includes at least two axially opposed friction linings (18), a lining spring (16) and a drive carrier disk (14) with a spring window (24), wherein the lining spring (16) has at least one fastening portion (16a), a supporting portion (16b) and a plurality of spring segments (16c) arranged adjacent to one another in circumferential direction, and the spring segments (16c) are arranged radially outside at the supporting portion (16b) of the lining spring (16), and the fastening portion (16a) is arranged radially inside at the supporting portion (16b).

Abstract: A torque converter includes a front cover, an output shaft member, a piston, a clutch, an impeller, and a turbine. The piston is supported by the output shaft member. The piston slides on the output shaft member in an axial direction. The piston extends in a radial direction. The clutch is disposed between the front cover and the piston. The impeller includes an impeller shell and an impeller blade. The impeller shell is fixed to the front cover. The impeller blade is attached to the impeller shell. The turbine includes a turbine shell, a turbine blade and a connecting portion. The turbine shell is disposed in opposition to the impeller. The turbine blade is attached to the turbine shell. The connecting portion connects the piston and the turbine shell so as to make the piston and the turbine shell unitarily rotatable.

Abstract: A bicycle hub assembly comprises a hub axle, a hub shell, a sprocket support body, a first ratchet member, a second ratchet member, and a sliding member. The hub shell includes at least one first tooth. The sprocket support body includes a first helical spline. The first ratchet member comprises at least one first ratchet tooth and a second helical spline engaged with the first helical spline. The second ratchet member comprises at least one second ratchet tooth and at least one second tooth. The at least one second ratchet tooth is engageable with the at least one first ratchet tooth. The at least one second tooth is engaged with the at least one first tooth. The sliding member is provided between the sprocket support body and the second ratchet member in an axial direction parallel to a rotational axis. The sliding member includes a non-metallic material.

Abstract: An expandable piston assembly for a clutch pack includes an apply piston, a stator, a rotor, and at least one side cover fixed to the stator. The stator is fixed to the apply piston and includes a first arcuate segment and a first radial protrusion extending from the first arcuate segment and including a distal end. The rotor is axially aligned with and rotatable relative to the stator. The rotor includes a second arcuate segment extending proximate the first radial protrusion distal end and a second radial protrusion extending from the second arcuate segment and including a distal end proximate the first arcuate segment. In some example embodiments, the first and second arcuate segments, the first and second radial protrusions, and the at least one side cover collectively form a portion of a first chamber for receiving a pressurized hydraulic fluid to rotate the rotor relative to the stator.

Abstract: Disclosed is a hydrokinetic torque converter (TC) with a TC housing. An impeller is disposed within the TC housing and connects to an engine output shaft. A turbine is disposed within the TC housing and connects to a transmission input shaft via a TC output shaft. A torque converter clutch (TCC), which is disposed within the TC housing and coupled to the TC output shaft, selectively locks the impeller to the TC output shaft. A damper, which is disposed within the TC housing and coupled to the TCC, dampens vibrations transmitted by the TCC. A disconnect device, which is disposed within the TC housing and coupled to the damper assembly and TC output shaft, connects the turbine to the TC output shaft or damper when positive torque is being transferred, and disconnects the turbine and TC output shaft or damper when negative torque is being transferred.