A torsional vibration damper includes a torque input member including a radially oriented first side plate and at least one supporting member mounted thereto, and a unitary radially resilient output member elastically coupled to the torque input member. The resilient output member includes at least one elastic blade configured to elastically and radially engage the at least one supporting member. The elastic blade has a raceway is configured to bear the at least one supporting member. The at least one elastic blade and a blade insert non-moveably secured to the main body. The blade insert radially engages the at least one supporting member. The raceway is defined by a radially outer surface of the blade insert.

Disclosed are damper assemblies for engine disconnect devices, methods for making such damper assemblies, and motor vehicles with a disconnect device for coupling/decoupling an engine with a torque converter (TC). A disconnect clutch for selectively connecting an engine with a TC includes a pocket plate that movably mounts to the TC. The pocket plate includes pockets movably seating therein engaging elements that engage input structure of the TC and thereby lock the pocket plate to the TC. A selector plate moves between engaged and disengaged positions such that the engaging elements shift into and out of engagement with the TC input structure, respectively. A flex plate is attached to the engine's output shaft for common rotation therewith. A damper plate is attached to the pocket plate for common rotation therewith. Spring elements mate the damper and flex plates such that the damper plate is movably attached to the flex plate.

A torque converter is provided. The torque converter includes an impeller including a plurality of impeller blades and a radially extending wall radially outside of the impeller blades and a turbine piston axially movable with respect to the impeller. The turbine piston includes a plurality of turbine blades and an outer radial extension radially outside of the turbine blades. The torque converter also includes a clutch assembly axially between the radially extending wall of the impeller and the outer radial extension of the turbine piston. The clutch assembly includes a first clutch plate rotationally fixed to the impeller and a second clutch plate rotationally fixed to the turbine piston. A portion of the clutch assembly extends between the turbine blades or the impeller blades. A method of constructing a torque converter is also provided.

A pendulum damper device includes a rotary member rotatable about a rotational axis. The rotary member includes a plurality of guide groove parts circumferentially aligned. The pendulum damper device also includes a plurality of pendulum units supported by the guide groove parts. The pendulum units swing along the guide groove parts so as to attenuate vibration when the rotary member is rotated. In addition, the pendulum damper device includes a plurality of stoppers mounted to the rotary member. Each of the stoppers is contacted to a part of each of the pendulum units so as to restrict a swing range of the each of the pendulum units.

A hydrokinetic torque coupling device features an impeller, a casing having a first engagement surface, a damper assembly, a turbine-piston including a drive component with a second engagement surface, and a clutch plate having clutch plate engagement surfaces interposed between and axially movable relative to at least one of the first and second clutch plate engagement surfaces. The turbine-piston is axially displaceable relative to the casing to move the second engagement surface axially towards and away from the first engagement surface for positioning the hydrokinetic torque coupling device into and out of a lockup mode in which the first and second engagement surfaces and the clutch plate engagement surfaces frictionally interlock with one another to non-rotatably lock the casing relative to the input part of the damper assembly.

A hydrokinetic torque coupling device includes an impeller, a casing having a first engagement surface, a turbine-piston hydrodynamically drivable by the impeller, and a biasing device. The turbine-piston is hydrodynamically drivable by the impeller and includes a turbine-piston shell having a second engagement surface facing the first engagement surface. The turbine-piston is axially displaceable relative to the impeller between a hydrodynamic transmission mode and a lockup mode. The biasing device is configured to exert an axial load against the turbine-piston to urge the turbine-piston axially away from the lockup mode and towards the hydrodynamic transmission mode. The axial load exerted by the biasing device decreases as the turbine-piston moves axially towards the lockup mode and increases as the turbine-piston moves axially away from the lockup mode.

A torque-coupling device for coupling driving and driven shafts. The torque-coupling device comprises a casing having a locking surface, a torque converter, a locking piston having an engagement surface axially movable to and from the locking surface of the casing and a torsional vibration damper. The torsional vibration damper comprises 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 an elastic leaf configured to elastically engage the supporting member upon rotation of the first retainer plate with respect to the output member. The output hub is configured for directly and non-rotatably engaging a driven shaft. The locking piston is non-rotatably connected to the torque input member of the torsional vibration damper.

A torque fluctuation inhibiting device includes a mass body, a plurality of centrifugal elements, an actuation preventing mechanism and a cam mechanism. The mass body is rotatable with a rotor, and is rotatable relatively to the rotor. Each of the centrifugal elements is disposed to receive a centrifugal force to be generated by rotation of the rotor and the mass body, and is movable in a radial direction. The actuation preventing mechanism restricts at least one of the centrifugal elements from moving outward in the radial direction when the rotor or the mass body is rotated at a predetermined speed or greater. The cam mechanism converts the centrifugal force into a circumferential force with use of actuation of the plurality of centrifugal elements moved in the radial direction by the centrifugal force when a relative displacement is produced between the rotor and the mass body in a rotational direction.

A torque fluctuation inhibiting device includes a mass body, a centrifugal element and a cam mechanism. The mass body is disposed to be rotatable with a rotor and be rotatable relatively to the rotor. The centrifugal element is disposed to receive a centrifugal force to be generated by rotation of the rotor and the mass body. When a relative displacement is produced between the rotor and the mass body in a rotational direction, the cam mechanism converts the centrifugal force that acts on the centrifugal element into a circumferential force directed to reduce the relative displacement. Additionally, when the torque fluctuations inputted to the rotor have a predetermined magnitude or greater, the cam mechanism makes the mass body freely rotate with respect to the rotor.

A torsional vibration damper of a hydrokinetic torque-coupling device. The torsional vibration damper comprises a torque input member including first and second side plates axially spaced from and non-rotatably attached to one another, and a supporting member mounted therebetween, a unitary elastic member disposed between the first and second side plates and pivotable relative to and elastically coupled to the torque input member, and a resilient member disposed between the elastic member and the first side plate. The elastic member includes a core member rotatable relative the torque input member, and an elastic leaf integral with the core member and configured to elastically engage the supporting member. The elastic leaf has a proximal end non-moveably connected to the core member, a free distal end and a curved raceway portion disposed between the proximal and free distal ends of the at least one elastic leaf for bearing the supporting member.