A drive train including an internal combustion engine with a crankshaft, and having a spur gear arrangement with at least one transmission input shaft that is coupled to the crankshaft by a friction clutch. A clutch plate within a housing of the friction clutch is connected in a rotationally locked manner to the at least one transmission input shaft and includes a centrifugal force pendulum. To accommodate the centrifugal force pendulum in the drive train in a space saving manner, the centrifugal force pendulum is situated on the at least one transmission input shaft at an axial distance from the clutch plate.

A torsional vibration reducing device includes a rotating body, and a connection member. The rotating body has a plurality of guide holes. The rotating body includes a plurality of rolling bodies that are accommodated in the plurality of guide holes, respectively. The connection member connects the plurality of rolling bodies such that the plurality of rolling bodies moves integrally in the rotating direction of the rotating body. The connection member is supported so as to be reciprocally swingable in the rotating direction. A first moment that results from a weight of any one of the plurality of rolling bodies and rotates the connection member in a first rotating direction, a second moment that results from a weight of the other of the plurality of rolling bodies and rotates the connection member in a second rotating direction being applied to the connection member.

A mechanism for limiting vibration amplitudes in a pumping system includes a plurality of pendulum absorbers coupled with a carrier and each having a pivoting range. The pendulum absorbers each further include a first and a second contact surface that contacts an outer peripheral surface of the carrier at limit stop positions, and each having a shape that is conforming with a shape of the outer peripheral surface. The pumping system may be used for pumping liquid nitrogen.

A converter unit having a damping system and having a torque transfer unit for connecting an input shaft separably to an output shaft, wherein the torque transfer unit has a co-rotating housing and the damping system can be installed centered and detachably on the housing is provided. With the converter unit proposed here standard components can be used, which are compact and easily installable.

A vibration damping device including a supporting member rotating with a rotation element around a rotation center of the rotation element; a restoring force generation member coupled to the supporting member to transfer torque to and from the supporting member and configured to swing with rotation of the supporting member; and an inertia mass body coupled to the supporting member via the restoring force generation member and swinging around the rotation center with the restoring force generation member with rotation of the supporting member, in which the restoring force generation member swings around a swing center so that a relative position with respect to the inertia mass body does not change, and a distance between a center of gravity of the restoring force generation member and the swing center changes with a change in a swing angle of the restoring force generation member with respect to the inertia mass body.

The invention relates to a force transmission device for power transmission between an input and an output, comprising at least an input and an output, and a vibration damping device disposed in a cavity that can be filled at least partially with an operating medium, in particular oil, the vibration damping device coupled with a rotational speed adaptive absorber, wherein the rotational speed adaptive absorber is tuned as a function of an oil influence to an effective order q.sub.eff, which is greater by an order shift value q.sub.F than an order q of an exciting vibration of a drive system.

A torque transmission device for a motor vehicle, having: a torque input element intended to be coupled to a driving shaft; a torque output element intended to be coupled to an input shaft of a gearbox, the torque output element and the torque input element being capable of pivoting with respect to one another around an axis X; and first and second elastic damping stages installed in series between the torque input element and torque output element, in which the first damping stage has an elastic member installed between the torque input element and a guidance device so as to act against the rotation of the guidance device with respect to the torque input element, the second damping stage having at least one elastic member installed between the guidance device and the torque output element so as to act against the rotation of the torque output element with respect to the guidance device, the guidance device having first stop means and second stop means.

A pendulum damping device including a support that rotates about an axis, at least one pendulum body and at least one rolling member guiding the movement of the pendulum body relative to the support, the rolling member engaging with at least one rolling track rigidly connected to the support and with at least one rolling track rigidly connected to the pendulum body. The rolling member includes a first part defining a first axial end, a second part defining a second axial end, and a resilient element arranged in the rolling member so as to axially separate these two parts so that the rolling member exerts an axial clamping force on one of the pendulum body and the support during the movement of the pendulum body relative to the support.

A torque transmission device is disclosed having a housing that is rotatable about an axis of rotation (d) and is at least partially filled with fluid and a centrifugal pendulum device having at least two centrifugal pendulums arranged in the housing, each having a set of pendulum masses arranged to be distributed over the circumference, which are displaceably arranged along predetermined pendulum tracks in the centrifugal force field of the torque transmission device. To at least reduce a mutual influence of the at least two sets of pendulum masses, a fluidically active separating member is provided between the at least two sets of pendulum masses.

A hybrid module for a motor vehicle power train, including an input side for connecting to an internal combustion engine, an output side for connecting to a drive wheel, an electric drive motor comprising a stator and a rotor and a torque transfer device arranged between the roto and the output side. The transfer device is designed to reduce rotational irregularity.