A stator for a torque converter includes a body portion with a first frusto-conical surface, a flange including a second frusto-conical surface, a stator clutch including the first and second frusto-conical surfaces, and at least one clutch plate disposed therebetween. In some example embodiments, the at least one clutch plate comprises a pair of frusto-conical surfaces. In an example embodiment, at least one of the at least one clutch plate frusto-conical surfaces includes a friction material bonded thereto. In an example embodiment, the body portion or the flange includes a first drive tab and the at least one clutch plate includes a second drive tab drivingly engaged with the first drive tab.

A coupling comprises at least two inter-connected torque couplings. Each torque coupling includes a pair of clutch end members, a clutch centre member disposed between the clutch end members, and an actuator coupled to one of the end members. The end members and the centre member each includes a set of concentric V-grooves each disposed on a respective face thereof. The centre member is axially movable between the end members. The actuator is configured to simultaneously couple the end members to the centre member by engaging the V-grooves of both of the respective end members with the V-grooves of the centre member. The centre member of one of the torque couplings comprises one of the opposing surfaces of the one torque coupling, another of the opposing surfaces of the one torque coupling and one of the end members of another of the torque couplings.

A coupling comprises at least two inter-connected torque couplings. Each torque coupling includes a pair of clutch end members, a clutch centre member disposed between the clutch end members, and an actuator coupled to one of the end members. The end members and the centre member each includes a set of concentric V-grooves each disposed on a respective face thereof. The centre member is axially movable between the end members. The actuator is configured to simultaneously couple the end members to the centre member by engaging the V-grooves of both of the respective end members with the V-grooves of the centre member. The centre member of one of the torque couplings comprises one of the opposing surfaces of the one torque coupling, another of the opposing surfaces of the one torque coupling and one of the end members of another of the torque couplings.

A shifting device for a motor vehicle transmission includes several transmission shafts which each are rotatable about a transmission axis, a synchronizer ring which is firmly connected with a transmission shaft, a first disk carrier, a plurality of first disks which are non-rotatably and axially shiftably connected with the first disk carrier, a second disk carrier which is axially shiftable relative to the first disk carrier and in circumferential direction can be coupled with the synchronizer ring both frictionally and positively, a plurality of second disks which are non-rotatably and axially shiftably connected with the second disk carrier and form a multidisk clutch with the first disks, and an actuating body for axially pressurizing the second disk carrier, wherein the actuating body and the second disk carrier are rotatable relative to each other in circumferential direction and substantially are firmly connected with each other in axial direction.

A shifting device for a motor vehicle transmission includes several transmission shafts which each are rotatable about a transmission axis, a synchronizer ring which is firmly connected with a transmission shaft, a first disk carrier, a plurality of first disks which are non-rotatably and axially shiftably connected with the first disk carrier, a second disk carrier which is axially shiftable relative to the first disk carrier and in circumferential direction can be coupled with the synchronizer ring both frictionally and positively, a plurality of second disks which are non-rotatably and axially shiftably connected with the second disk carrier and form a multidisk clutch with the first disks, and an actuating body for axially pressurizing the second disk carrier, wherein the actuating body and the second disk carrier are rotatable relative to each other in circumferential direction and substantially are firmly connected with each other in axial direction.

A camshaft phaser, including: a gear to receive torque; a housing non-rotatably connected to the gear; and a phase adjustment assembly. The phase adjustment assembly includes: first and second frusto-conical shaped surfaces arranged to non-rotatably connect to a camshaft; third and fourth frusto-conical shaped surfaces; and a displacement assembly. The displacement assembly is arranged to: for an advance mode, displace the first frusto-conical surface in the first axial direction to non-rotatably connect the first and third frusto-conical surfaces and so that the second frusto-conical surface is rotatable with respect to the fourth frusto-conical surface in a first circumferential direction; and for a retard mode, displace the second frusto-conical surface in the second axial direction to non-rotatably connect the second and fourth frusto-conical surfaces and so that the first frusto-conical surface is rotatable with respect to the third frusto-conical surface in a second circumferential direction, opposite the first circumferential direction.

A drive assembly for a torque converter is provided. The drive assembly includes an axially movable turbine defining a piston of a lockup clutch; and a damper assembly including a first component including a plurality of first ramps and a second component including a plurality of second ramps, the first ramps configured for interacting with the second ramps to generate an axial force on the turbine during a coast condition of the torque converter, the damper assembly being arranged and configured to limit the axial force to prevent the piston from self-locking during the coast condition. A torque converter and a method of forming a drive assembly for a torque converter are also provided.

A piston system comprises a housing (3) comprising a first recess (6) and a second recess (7). A first piston (1) comprises a first portion embedded in the first recess (6). A second piston (2) comprises a second portion embedded in the second recess (7). An actuator (10) has a first side (20) and a second side (21). The first piston (1) selectively presses against the first side (20) of the actuator, and the second piston (2) selectively presses against the second side (21) of the actuator. The actuator may be a synchronizer of a clutch assembly.

A piston system comprises a housing (3) comprising a first recess (6) and a second recess (7). A first piston (1) comprises a first portion embedded in the first recess (6). A second piston (2) comprises a second portion embedded in the second recess (7). An actuator (10) has a first side (20) and a second side (21). The first piston (1) selectively presses against the first side (20) of the actuator, and the second piston (2) selectively presses against the second side (21) of the actuator. The actuator may be a synchronizer of a clutch assembly.

Shaft locking assemblies for a drive shaft include an assembly hub configured to accommodate the drive shaft, the assembly hub including a stop plate; an assembly hub interior in the assembly hub; a contractible shaft locking sleeve disposed in the assembly hub interior and configured to accommodate the drive shaft, the shaft locking sleeve engaging the stop plate; at least one pusher sleeve engaging the shaft locking sleeve; a fluid pressure space disposed in pressure transmitting relationship to the pusher sleeve; and a fluid pressurizing mechanism disposed in fluid communication with the fluid pressure space. The pusher sleeve is adapted to push against the shaft locking sleeve and the shaft locking sleeve is adapted to contract and push against the stop plate and contract against the drive shaft responsive to introducing a pressurizing fluid into the fluid pressure space. Methods of locking a rotating element on a drive shaft are also disclosed.