Schaeffler Technologies Ag & Co .kg

Dominique Engelmann

Thorsten Krause

Mario Degler

Stephan Maienschein

Andreas Trinkenschuh

Markus Werner

Eugen Kombowski

Bruno Mueller

Kai Schenck

Christian Dinger

Willi Ruder

Parviz Movlazada

Michael Kuehnle

Benjamin Voegtle

Ralf Stopp

A force transmission device, in particular or power transmission between a drive engine and an output, comprising a damper assembly with at least two dampers, which can be connected in series, and a rotational speed adaptive absorber, wherein the rotational speed adaptive tuned mass damper is disposed between the dampers at least in one force flow direction through the force transmission device.

Force transmission device in particular for power transmission between a drive engine and an output

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, which is greater by an order shift value qthan an order q of an exciting vibration of a drive system.

Force transmission device with a rotational speed adaptive damper and method for improving the damping properties

A torque transmission device comprising a torque converter disposed in a drive train of a motor vehicle, in particular a hydrodynamic torque converter or a fluid clutch, wherein the converter or the fluid clutch comprises a turbine shell and a pump shell which can be coupled through a pump clutch and at least one pump damper with a converter cover, and comprising at least one converter damper and at least one converter lock up clutch.

Torque transmission device

A centrifugal pendulum in a torsional vibration damper of a drive train of a motor vehicle with a pendulum flange rotating about a rotation axis and several pendulum masses distributed over the circumference, disposed on the latter in a manner capable of swinging. When the internal combustion engine of the drive train induces massive rotational irregularities resulting from high vibration angles in these arrangements, the pendulum masses can be deflected more strongly relative to the pendulum flange and strike the provided swing motion limits. To prevent hard hits of the pendulum masses on the pendulum flanges, it is proposed to dampen the impact areas by hydraulic means and hence to achieve a soft impact.

Oil cavity for pendulum element (roller) of a centrifugal pendulum

A drive train, in particular, a hybrid drive train with a torque converter, which can be operatively connected with a drive through a clutch. The clutch includes an emergency operation actuation device with at least one emergency operation actuation element, which defines a centrifugal oil cavity which includes oil and which is coupled with the drive.

Drive train, in particular a hybrid drive train

A hydrodynamic torque converter with an impeller connected on the drive side arranged in housing and a turbine driven by the latter, connected with the driven side of the torque converter, with a turbine damper actively disposed between the turbine and driven side. To improve the vibration damping on the driven side of the torque converter, the turbine damper with a first damper part is formed out of an input part connected with the turbine and an intermediate flange, limited and rotatable opposite and against the action of at least a first energy accumulator and a second damper part with the intermediate flange and an output part limited and rotatable oppositely and against the action of at least a second energy accumulator. An adaptive-speed vibration absorber is arranged on the intermediate flange.

Hydrodynamic torque converter

A torque transmission device (), comprising a pump shell (), a turbine shell () that is drivable by the pump shell, and a torsion vibration damper (). The torsion vibration damper includes a damper input component () and a damper output component (), wherein a vibration absorber () is configured on the damper output component.

A force transmission device having a hydrodynamic component, disposed between an input and an output, comprising at least a pump shell and a turbine shell, forming an operating cavity in combination, with an actuatable clutch device for at least partially bridging the hydrodynamic component, comprising a clutch component for at least partially bridging the hydrodynamic component, comprising a first clutch component connected with the input and a second clutch component at least indirectly connected to the output, which can be brought into operative engagement with one another through an actuation device, with a vibration absorber disposed in the force flow at least subsequent to the actuatable clutch device, with a housing coupled with the input or with an element coupled non-rotatably to the input and coupled with the pump shell.

Combined power transmission, start-up unit and drive system

A method and a sealing system for sealing the space between a piston and the hub of a torque converter lockup clutch is provided. According to the method and the sealing system, the seal is pretensioned with its cylindrical surface facing the piston bore. In an embodiment of the invention, the first seal is fastened by a second seal. The invention allows minimization of oil leakage flow and at the same time to linearize its dependency on the differential pressure. Spontaneous sealing may be reduced, thereby directly correlating the contact pressure of the piston&#x2014;and thus the torque of the torque converter lockup clutch&#x2014;with differential pressure and eventually allowing for smoother travel.

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Offendorf, France

Dominique Engelmann