A torque-coupling device for coupling driving and driven shafts. The torque-coupling device includes a casing having a locking surface, a torque converter, and a locking piston having an engagement surface axially moveable to and from the locking surface of the casing. The locking piston includes a vibration damper including a torque input member and a unitary radially elastic output member elastically coupled to the torque input member. The torque input member includes a radially oriented first retainer plate and at least one supporting member mounted thereto. The output member includes an output hub and at least one elastic blade configured to elastically engage the supporting member upon rotation of the first retainer plate with respect to the output member. The torque input member of the vibration damper non-rotatably engages the turbine wheel and is axially moveable relative to both the impeller wheel and turbine wheel.

A torque transmitting device comprising a torque input element intended to be coupled to a crankshaft of an engine, a torque output element intended to be coupled to a transmission input shaft, damping means mounted between the torque input element and the torque output element, with the torque output element being able to pivot relative to the torque input element about an axis, against a resisting torque exerted by the damping means, with the damping means comprising at least one elastic leaf able to be elastically and radially held to rest on a support member, with the elastic leaf being adapted to bend upon rotation of the torque input element relative to the torque output element, with the device further comprising clutch means mounted between the torque input element and the torque output element, wherein the supporting member is carried by the torque input element.

A torsional vibration damper includes a planetary rotary unit and an elastic body that couples two rotary elements of three rotary elements so that the two rotary elements can rotate relatively to each other. The torsional vibration damper includes a shaft supporting member by which a rotation center axis of at least any one rotary element of the two rotary elements and a rotation center axis of the rotary element other than the planetary rotary unit and the two rotary elements are held on the same axis. The shaft supporting member has a holding section that is disposed in a position between fellow planetary rotary elements and not making contact with the planetary rotary elements and that fits with and thereby suppresses movement of the rotary element other than the planetary rotary unit and the two rotary elements in the axial direction.

The invention relates to a torque transmitting device comprising a torque input element (17a, 17b) and a torque output element (8) able to pivot about a shaft (X) with respect to one another, at least one elastic leaf (22), rotationally coupled to the torque output element (8) or to the torque input element (17a, 17b) respectively, the elastic leaf (22) being able to be elastically and radially supported by a supporting member (18) carried by the torque input element (17a, 17b) or the torque output element (8) respectively, the elastic leaf (22) being able to bend upon rotation of the torque input element (17a, 17b) with respect to the torque output element (8).

A torsional damper for a torque transmission device, comprising: a rotationally movable first element (102) and second element (103); and an elastically deformable blade (117a, 117b) integral with one of the first and second elements; an abutment element (121) carried by the other of the first and second elements and configured to interact with the blade in such a way that for an angular deflection between the first and second elements with respect to an inactive angular position, the abutment element applies a flexural load onto the blade, producing jointly a reaction force capable of returning the first and second elements to the inactive angular position, blade has an inner arm (132) and an outer arm (134) connected by a bend (133), the inner arm being situated radially between the outer arm and a rotation axis.

A torque transfer mechanism includes an input member to receive from a propulsion source, an input torque about an axis of rotation and an output member coupled to the input member to transfer the input torque to a downstream driveline component. The torque transfer mechanism also includes at least one clockspring to restrict relative rotation between the input member and the output member. The torque transfer further includes a mass plate coupled to the output member and configured to rotate about the axis of rotation. The torque transfer mechanism further includes a plurality of pendulum masses movably coupled to the mass plate wherein the clockspring is arranged to attenuate a first range of input torque vibration and a the plurality of pendulum masses are arranged to attenuate a second range of input torque vibration.

The invention relates to a hydrokinetic torque coupling device for a motor vehicle, comprising a torque input element (11) intended to be coupled to a crankshaft (1), an impeller wheel (3) rotationally coupled to the torque input element (11) and able to hydrokinetically drive a turbine wheel (4), a torque output element (8) intended to be coupled to a transmission input shaft (2), clutch means (10) movable between an engaged position wherein the torque input element (11) and the torque output element (8) are rotationally coupled through damping means (23, 27), and a disengaged position wherein the torque input element (11) and the torque output element (8) are rotationally coupled through the impeller wheel (3), the turbine wheel and the damping means (23, 27).

The dual mass flywheel comprises a spring assembly (4; 104; 112; 128; 129), if necessary, with two stages of which one can include a spiral spring. Furthermore, the dual mass flywheel comprises a friction damping system (111) that applies torque independently of the rotational speed of the flywheel.

A torque transmitting device comprising a torque input element intended to be coupled to a crankshaft of an engine, a torque output element intended to be coupled to a transmission input shaft, damping means mounted between the torque input element and the torque output element, with the torque output element being able to pivot relative to the torque input element about an axis, against a resisting torque exerted by the damping means, with the damping means comprising at least one elastic leaf able to be elastically and radially held to rest on a support member, with the elastic leaf being adapted to bend upon rotation of the torque input element relative to the torque output element, with the device further comprising clutch means mounted between the torque input element and the torque output element, wherein the supporting member is carried by the torque input element.

The disclosure describes a hydrokinetic torque coupling device for a motor vehicle. The coupling device includes a torque input element (11) intended to be coupled to a crankshaft (1), an impeller wheel (3) rotationally coupled to the torque input element (11) and able to hydrokinetically drive a turbine wheel (4). The turbine wheel, in turn, drives a torque output element (8) intended to be coupled to a transmission input shaft (2). The device further includes a clutch (10) able to rotationally couple and uncouple the torque input element (11) and the torque output element (8) between engaged and disengaged positions. When the clutch is in an engaged position, torque passes from the torque input element (11) to the torque output element (8) through an included damper system (18, 22).