Abstract: A damper device includes an input element; an intermediate element; art output element; a first elastic body that transmits a torque between the input element and the intermediate element; and a second elastic body that transmits a torque between the intermediate element and the output element. The damper device also includes a rotary inertia mass damper that includes a first mass body rotating in accordance with relative rotation between the input element and the output element and that is arranged between the input element and the output element to be parallel to a torque transmission path including the first elastic body, the intermediate element and the second elastic body. Finally, the damper devices includes a second mass body; and an elastic body arranged to couple the second mass body with the output element.

Abstract: A damper device includes a damper device body, an output shaft and a dynamic vibration absorber. The damper device body includes an input member and an output member. The input member and the output member are coupled to be rotatable relative to each other. The output shaft outputs a torque transmitted to it from the damper device body. The dynamic vibration absorber is attached to the output shaft.

Abstract: A flywheel apparatus includes a damper, and a mass ring including a first surface facing a first side in an axial direction, a second surface facing a second side and a first circumferential surface facing an inner side in a radial direction. The apparatus includes a drive plate including a first wall portion including a third surface being in contact with the second surface, and a plurality of protruding portions, each of the plurality of protruding portions including an end surface configured to fit to the first circumferential surface. The drive plate is configured such that the mass ring is concentrically attachable to the drive plate by the fitting of the end surfaces and the first circumferential surface to each other.

Abstract: A device for damping torsional oscillations, including: a pendulum-type torsional oscillation damper, a supplementary torsional oscillation damper including an input element, an output element, wherein both are configured to rotate around one axis rotation, and at least one mechanical energy accumulator device disposed between the input and output elements, a torque limiter, including at least one friction coating fixed on a disk, configured to be displaced around the axis. The disk is connected to rotate with the input element of the supplementary torsional oscillation damper and the friction coating is fixed to the disk of the torque limiter by an adhesively bonded surface-to-surface joint.

Abstract: The invention relates to clutch disc comprising a torsional vibration damper which has an inlet part and an outlet part and a spring device operatively arranged in the peripheral direction between the input part and the output part, wherein the spring device is formed from the first and second spring elements connected behind one another and separated by an intermediate flange, and a centrifugal pendulum which has a pendulum mass carrier arranged about an axis of rotation of the clutch disc and pendulum masses accommodated on same on pendulum paths for oscillation and arranged in a distributed manner over the periphery. In order to improve the insulation effect of the torsional vibration damper and the centrifugal pendulum and/or better adjust same to the required application, the pendulum mass carrier is coupled for conjoint rotation with the intermediate flange and centrally accommodated on the output part.

Abstract: An intermediate member includes first and second intermediate members. The first and the second intermediate members are provided with a spring supporting portion that extends along springs and supports the springs from an outer side. An expansion and contraction of the springs enables the intermediate member to be movable in a circumferential direction. Accordingly, sliding distances caused by the expansion and contraction of the first and the second springs become shorter, compared with a configuration where the first and the second spring are supported by the driven member or drive member from the outer side, thereby decreasing an energy loss (hysteresis) caused by the sliding. As a result, a vibration damping performance of the damper device can be improved.

Abstract: A rotary inertia mass damper of a damper device is configured to include a planetary gear that includes a driven member with outer teeth, first and second input plate member as a carrier which rotatably supports a plurality of pinion gears, and a ring gear that meshes with the plurality of pinion gears and works as the mass body. The outer teeth of the driven member are arranged to be disposed outside first and second springs in a radial direction of the damper device. The driven member, the plurality of pinion gears and the ring gear are arranged to at least partially overlap with the first and second springs as viewed in the radial direction. A motion of the ring gear in the axial direction is restricted by the plurality of pinion gears.

Abstract: A torsional vibration damper for damping a vibration component of a rotational movement around an axial direction has a damper mass to carry out an oscillation to damp the vibration component, a damper mass carrier to movably guide the damper mass, and a supporting body in contact with or can enter into contact with the damper mass in at least one operating situation of the torsional vibration damper. The supporting body is connected to the damper mass carrier to drive the supporting body relative to the damper mass carrier during rotation of the torsional vibration damper, and a support structure formed together with the supporting body to radially support the supporting body under a first operating condition and to radially release the supporting body under a second operating condition which differs from the first operating condition.

Abstract: A system according to the present disclosure includes an engine speed module and a damper control module. The engine speed module is configured to determine a speed of an engine. The damper control module is configured to (i) fully engage a damper bypass clutch of a damper assembly to fully bypass a damper of the damper assembly when the engine is starting and the engine speed is less than a first speed, and (ii) partially engage the damper bypass clutch to partially bypass the damper when the engine speed is greater than or equal to the first speed. The engine is connected to a transmission through the damper when the damper bypass clutch is at least partially disengaged. The damper bypass clutch connects the engine and the transmission to one another independent of the damper when the damper bypass clutch is fully engaged.

Abstract: A torsional vibration reducing apparatus is provided. The torsional vibration reducing apparatus includes a rotating body having a rolling chamber, and a rolling body including a support shaft portion, a first flange portion, a second flange portion, a first corner portion, and a second corner portion. The support shaft portion is housed in the rolling chamber. The flange portions are located respectively at either end of the support shaft portion in an axial direction. A position defined by the support shaft portion and the first flange portion is the first corner portion, and a position defined by the support shaft portion and the second flange portion is the second corner portion. In a section of the rolling body that is along a central axis of the support shaft portion, sectional shapes of the first corner portion and the second corner portion differ from each other.

Abstract: Elastomer members for a torsional vibration damper, methods of making the same, and torsional vibration dampers having the elastomer members are disclosed. The elastomer members have a first major surface and an opposing second major surface with opposing side joining the first major surface to the second major surface, have a median sagittal plane extending parallel to the first major surface and the second major surface, and a transverse plane perpendicular to the median sagittal plane. In a cross-sectional geometry in a plane bisecting the median sagittal plane and the transverse plane, a thickness of the elastomer member changes along the median sagittal plane in a direction parallel to the transverse plane with a first thickness at both opposing sides and a second thickness at the transverse plane, where the second thickness is greater than the first thicknesses.

Abstract: A vibration damping having a first torsional vibration damper couplable to a drive member with a first secondary side rotatable with respect to the first primary side against a return action of a first damper element arrangement, a second torsional vibration damper with a second primary side connected to the first secondary side and with a second secondary side rotatable with respect to the second primary side against the return action of a second damper element arrangement and couplable to an output member, and a deflection mass pendulum arrangement having at least one deflection mass. The first damper element arrangement has a plurality of first damper element units acting parallel to one another and/or the second damper element arrangement has a plurality of second damper element units acting parallel to one another.

Abstract: A torque coupler includes an input side and an output side, which are situated rotatably around an axis of rotation, and in addition an intermediate plate for coupling with the input side, an output flange for coupling with the output side, a spring damper for coupling the intermediate plate with the output flange, and a centrifugal force pendulum having a pendulum flange and a pendulum mass. Here the pendulum flange extends between a first area, in which the pendulum flange is attached to the intermediate plate, and a second area, in which the pendulum mass is attached to the pendulum flange. The output flange has a cutout, through which a section of the pendulum flange which connects the two areas runs.

Abstract: A vehicle damper device disposed between a power transmission member coupled to an output shaft of an engine and a power transmission shaft disposed concentrically and rotatably relative to the power transmission member, the vehicle damper device includes: an input-side rotating member to which power of the engine is input via the power transmission member; an output-side rotating member relatively non-rotatably coupled to the power transmission shaft to be concentric and rotatable relative to the input-side rotating member; a mass body disposed rotatably relative to the input-side rotating member; a first elastic member interposed between the input-side rotating member and the mass body; and a second elastic member interposed between the input-side rotating member and the output-side rotating member.

Abstract: A torsion damping device (10) equipped with first torsion damping system that comprise a radial phase washer (38) and two guide washers (20A, 20B) and elastic members (36); the damping device being equipped with second torsion 5 damping system that have two pendulum flyweights (54A, 54B) that are mounted oscillatingly on a support element (56) that is rotationally integral with the phase washer (38); wherein the support element (56) is offset axially with respect to the guide washers (20A, 20B) in such a way that the two pendulum flyweights (54A, 54B) are offset axially on the same side with respect to the two guide washers (20A, 20B).

Abstract: A system for absorbing vibration created by operation of an engine of the present invention includes a first plate driven by an engine shaft and a torque transmitting device for transferring torque from the engine shaft to a transmission input shaft. The system includes a first vibration absorber and a second vibration absorber. The first vibration absorber includes at least one selectively moveable mass. The second vibration absorber includes at least one biasing member and generally opposing ends. The first vibration absorber is configured to absorb vibrations created at a first harmonic of the engine and the second vibration absorber is configured to absorb vibrations created at multiple harmonics of the engine.

Abstract: A damper unit having at least two series-connected damper units arranged offset from each other in a radial direction, each including two damper parts that are coupled to each other by means of spring units and a speed-adaptive absorber which is at least indirectly coupled to the connection between the two dampers, wherein the speed-adaptive absorber is arranged between the spring units of both dampers in a radial direction.

Abstract: A vibration damping device capable of reducing a change in an order frequency of a reciprocating motion of a pendulum resulting from eccentricity of rotational members therein. The vibration damping device comprises a pendulum damping mechanism having a mass to dampen the torsional vibrations by an oscillating motion thereof resulting from the torsional vibrations. An inertial body is arranged in the prime mover side of the rotary shaft, an elastic damping mechanism is connected with a transmission side of the inertial body in a power transmittable manner, a pendulum damping mechanism is connected with the transmission side of the elastic damping mechanism in a power transmittable manner, and a torque limiter mechanism is connected with the transmission side of the pendulum damping mechanism in a power transmittable manner.

Abstract: A torsional damper assembly for transmitting torque between a prime mover of a powertrain and an input of a transmission is provided. The torsional damper assembly includes an input mass, an output mass, a damping element, a bypass clutch, and a bypass clutch release lever. The damping element is interposed between the input mass and the output mass, and it is operable to translate torque between the masses and to dampen oscillation generated by the prime mover. The bypass clutch is configured to couple the input and output masses together for common rotation when engaged. The bypass clutch release lever is pivotally rotatable with respect to the output mass, and it includes a biasing portion and a weighted end. When rotated, the biasing portion is operable to bias the bypass clutch away from the input mass to disengage the bypass clutch.

Abstract: A torsional damper assembly for transmitting torque between a prime mover of a powertrain and an input of a transmission is provided. The torsional damper assembly includes an input mass, an output mass, a damping element, a bypass clutch, and a bypass clutch release lever. The damping element is interposed between the input mass and the output mass, and it is operable to translate torque between the masses and to dampen oscillation generated by the prime mover. The bypass clutch is configured to couple the input and output masses together for common rotation when engaged. The bypass clutch release lever is pivotally rotatable with respect to the output mass, and it includes a biasing portion and a weighted end. When rotated, the biasing portion is operable to bias the bypass clutch away from the input mass to disengage the bypass clutch.

Abstract: A system for absorbing vibration created by operation of an engine of the present invention includes a first plate driven by an engine shaft and a torque transmitting device for transferring torque from the engine shaft to a transmission input shaft. The system includes a first vibration absorber and a second vibration absorber. The first vibration absorber includes at least one selectively moveable mass. The second vibration absorber includes at least one biasing member and generally opposing ends. The first vibration absorber is configured to absorb vibrations created at a first harmonic of the engine and the second vibration absorber is configured to absorb vibrations created at multiple harmonics of the engine.

Abstract: A dual mass flywheel for a drivetrain of a motor vehicle includes a primary flywheel mass, a secondary flywheel mass and a coupling device. The coupling device includes at least two pivot levers associated with the secondary flywheel mass that interact with a control profile formed on the primary flywheel mass. The pivot levers are pretensioned against the control profile in a radial direction by an elastic element. A control segment of the elastic element is disposed radially inside the control profile.

Abstract: A damper unit having at least two series-connected damper units arranged offset from each other in a radial direction, each including two damper parts that are coupled to each other by means of spring units and a speed-adaptive absorber which is at least indirectly coupled to the connection between the two dampers, wherein the speed-adaptive absorber is arranged between the spring units of both dampers in a radial direction.

Abstract: A method controls a friction clutch disposed between an internal combustion engine and a change speed transmission. The friction clutch is controlled in such a way that it transmits an average coupling torque of the internal combustion engine and does not transmit periodically occurring peak values of the coupling torque. In addition, a control unit is programmed to carry out the method.

Abstract: A non-helical, multiple compound element, true torsion system includes a working element to be connected to a load, an adjustable control element and a drive for driving the control element. At least one S-shaped compound torsion element has ends each being connected to a respective one of the working and control elements.

Abstract: A variable damper includes a first plate connected to a first rotating shaft and a second plate connected to a second rotating shaft. A damper spring transmits power between the first and second plates, and a variable friction apparatus regulates a frictional force between the first and second plates. The variable friction apparatus includes a solenoid coil, a solenoid pawl, a pressure plate with a slanted surface, a friction plate between the pressure plate and the second plate, a wedge contacting the pressure plate and movable along the slanted surface in response to the state of the solenoid pawl, and a wedge spring supporting the wedge.