The invention relates to a torque transmitting device (1) including a torque input element (5). coupled to a crankshaft of an engine, and a torque output element (8) intended to be coupled to a transmission input shaft. The torque transmitting device also includes a damper (13, 17) and a clutch (20, 18) mounted between the torque input element (5) and the torque output element (8). The clutch includes a piston (20) axially movable from an engaged position in which the torque input element (5) is rotationally coupled to the torque output element (8) through the damper (13, 17), and a disengaged position. The clutch further includes an assistance mechanism (24) able to exert an axial force tending to return the clutch piston (20) to the engaged position thereof.

The invention relates to a torque transmitting device (1) including a torque input element (5). coupled to a crankshaft of an engine, and a torque output element (8) intended to be coupled to a transmission input shaft. The torque transmitting device also includes a damper (13, 17) and a clutch (20, 18) mounted between the torque input element (5) and the torque output element (8). The clutch includes a piston (20) axially movable from an engaged position in which the torque input element (5) is rotationally coupled to the torque output element (8) through the damper (13, 17), and a disengaged position. The clutch further includes an assistance mechanism (24) able to exert an axial force tending to return the clutch piston (20) to the engaged position thereof.

A starter element for a drivetrain of a motor vehicle having a housing, the housing being mounted on at least one shaft and the housing being coupled by means of an elastic element to a component located in a power stream of the starter element.

A vehicular fluid power transmitting device includes a pump impeller, a turbine runner, a damper device, a set member, and a centering member. The pump impeller has a pump shell to which torque from a drive source is input. The damper device has a damper input member and a damper output member. The damper input member is connected to an output shaft of the drive source. The damper output member is connected to the pump shell. The set member is fixed to the pump shell, and is connected to the damper output member. Also, the centering member is provided protruding toward the pump shell from the output shaft of the drive source, and is fitted together with the damper input member.

A torque converter for a motor vehicle drive train is provided. The torque converter includes a damper including a first cover plate and a drive flange; and a stator assembly. The first cover plate is sealingly rotatable with respect to the stator assembly at a sealed interface and the first cover plate and the drive flange form a fluid flow gap therebetween. Fluid flows through the fluid flow gap during operation of the torque converter. The sealed interface prevents the fluid from flowing therethrough. A method of forming a torque converter is also provided.

A vehicular fluid power transmitting device has a pump impeller, a turbine runner, damper device, an annular set member and a bearing assembly. The pump impeller has a pump shell. The damper device is provided between a drive source and the pump shell in an axial direction of an output shaft, and has a damper input member that is connected to the drive source, and a damper output member that is connected to the pump shell. The damper output member is connected to the annular set member that is fixed to the pump shell. The damper input member is relatively rotatably supported via the bearing assembly by the annular set member.

A torque transmission unit includes a first input side, a second input side, an output side, a hydrodynamic converter and a lock-up clutch. The first input side is configured to receive a first torque, and the second input side is configured to receive a second torque. The torque transmission unit has a freewheel. The freewheel is arranged downstream of the hydrodynamic converter, and the second input side is arranged downstream of the freewheel in a torque flow of the first torque from the first input side to the output side. The freewheel is designed to, in a first freewheel operating state, connect, in a torque-locking manner, the hydrodynamic converter to the output side for the transmission of the first torque from the first input side to the output side when the lock-up clutch is open. The freewheel is designed to, in a second freewheel operating state, decouple the hydrodynamic converter from the output side, to at least partially prevent a transmission of the second torque from the second input side into the hydrodynamic converter.