The invention relates to a torque transmission device (1) for the drive train of a motor vehicle, comprising an input element (2) and a cover element (16) which is connected to the input element (2) for conjoint rotation, and comprising an output element (3), wherein: the output element (3) and the input element (2) are rotatable in relation to one another via an energy accumulator device (4) and about a common axis of rotation A; a torque-limiting device (10) is located between the input element (2) and the output element (3); the torque-limiting device (10) is designed to transmit a torque between the input element (2) and the output element (3) up to a limit torque value and, when the limit torque value is exceeded, to transmit a torque at least in part or to transmit no torque at all; the torque-limiting device (10) is connected to the energy accumulator device (4) via a frictional and/or form-fitting connection (8), is connected to the input element (2) via a first frictional connection (9), and is connected to the cover element (16) via a second frictional connection (14); the torque-limiting device (10) comprises a preload element (5) for providing the frictional connections (9; 14); the preload element (5) is preloaded between the input element (2) and the cover element (16); a radially inner region of the preload element (5) is provided with at least two contact elements (17a, 17b, 17c, 17d, 17e, 17f); the contact elements (17a, 17b, 17c, 17d, 17e, 17f) are provided on a radius (r) and protrude axially out of the preload element (5) in the direction of the input element (2); the contact elements (17a, 17b, 17c, 17d, 17e, 17f) are at an angular distance (α) from one another; and the contact elements (17a, 17b, 17c, 17d, 17e, 17f) form the first frictional connection with the input element (2).

A damper device includes a first rotor, a second rotor, an elastic coupling part having first and second elastic members, and a hysteresis generating mechanism. The hysteresis generating mechanism includes a friction member, and generates a hysteresis torque. The friction member does not make frictional contact with the first and second rotors in a first torsion angular range where the torsion is caused between the first and second rotors by a first torsion angle from a neutral condition, makes frictional contact with the first or second rotor in a second torsion angular range exceeding the first torsion angle so as to generate the hysteresis torque, and does not make frictional contact with the first and second rotors in a predetermined torsion angular range within the second torsion angular range. In the neutral condition, the friction member is set in a neutral position by actuation of the elastic coupling part.

A rotational coupling includes input and output hubs disposed about a rotational axis and an attachment ring disposed about the axis on one side of the input hub opposite the output hub. A flexible, multi-coil body such as a cable is disposed radially outwardly of the input and output hubs and couples the hubs together for rotation upon rotation of the input hub in one rotational direction. The body has ends coupled to the output hub and attachment ring. A torque limiter includes a torque transmission plate configured to rotate with the input hub and an armature plate fixed against rotation. The torque transmission plate and armature plate are configured to move axially together along the axis of rotation. An electromagnet disposed on one side of the torque limiter opposite the input hub attracts the plates in a second axial direction away from the attachment ring when energized.

An industrial work vehicle including a frame and a first shaft rotatably connected to the frame via first and second bearings. The work vehicle further includes a second shaft rotatably positioned in line with the first shaft and connected to the first shaft via a coupling. The second shaft is further connected to the frame via a third bearing. The coupling includes a first connection and a second connection. The first connection connects the first shaft to the second shaft via a fourth bearing adapted to support a radial load and to accommodate an axial rotation and an angular misalignment of one shaft with respect to the other shaft. The second connection connects the first shaft to the second shaft via flange elements which are interconnected via an intermediary element adapted to transmit a torque and to accommodate a misalignment of one shaft with respect to the other shaft.

A pressure plate for a friction coupling such as a clutch or brake system is disclosed in the present application. The pressure plate includes one or more pockets with a phase change material disposed therein. The phase change material operates to absorb and release heat when the friction coupling cycles between activation and deactivation so as to minimize a maximum temperature of the pressure plate.

The engine starter includes a pinion-mobile component which is linked to an output shaft by a helical spline and can be slid in a shaft direction, in a state where the pinion-mobile component includes; an overrunning clutch which is idled when the pinion gear, which is engaged to the ring gear, is driven by the engine via the ring gear so as to be rotated at a rotational speed which is higher than a rotational speed of the output shaft; and a breaking mechanism in which the overrunning clutch breaks a transmission of a torque, which is generated in accordance with a rotation of the motor and is transmitted to the ring gear, when a value of the torque is a predetermined condition value with respect to a direction where the torque is transmitted to the ring gear.

A damper device includes a first member, a second member, an elastic member and a supporting member. The first member has two wall members separated from each other. The supporting member includes projections (preventing portion) that make contact with one of two wall portions (wall members) so as to prevent the supporting member and an elastic member from being inclined (falling, rotationally moving) in the axial direction.

A torque limiter fixed to a flywheel including an annular portion and an accommodation portion is disclosed. The torque limiter includes a first plate, a second plate axially opposed to the first plate, a friction disc disposed between the first and second plates, a pressing member, and a third plate. A torque is inputted to the first plate. The pressing member presses the second plate onto the friction disc. The third plate supports the pressing member with the second plate therebetween while the pressing member is compressed. The third plate includes a support portion supporting the pressing member and a tubular portion provided in an outer peripheral part of the support portion. The tubular portion covers an outer peripheral surface of the friction disc. The tubular portion axially extends and is opposed to an inner peripheral surface of the annular portion of the flywheel, and includes first openings circumferentially aligned.

A drive assembly for a motor vehicle drive train is provided. The drive assembly includes a first subassembly configured for connecting to an engine crank. The first subassembly includes a slip clutch plate. The drive assembly also includes a second subassembly connected to the first subassembly via a radially outer portion of the slip clutch plate. The second subassembly includes a damper assembly. A method of forming a drive assembly for a motor vehicle drive train is also provided.

A return stop device with a freewheel having an internal ring, an external ring, and retaining elements arranged in an annular gap therebetween. A flange is provided at the attachment side and a housing part, between which the external ring is clamped, and a clamping device by which the external ring is pressed with its face between the flange and the housing part against a friction area, in order to generate a friction-fitting connection between the flange and the external ring. A release device is provided to at least partially overcome the contact pressure, in order to reduce or remove the friction-fitting connection. The release device includes an actuating organ, which acts upon a first gliding element, displaceable in an operating direction, to act upon a second gliding element, arranged displaceable perpendicular to the operating direction, that acts via a second wedge against the contact pressure upon the housing part.