Torsional vibration damper
AssigneeRohs-Voigt Patentverwertungsgesellschaft mbH
InventorsUlrich Rohs, Hans Rohs, Dietmar Heidingsfeld
Life of this patent
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Abstract
In order to adapt the damping behavior at a wider range in a process for damping torsional vibrations and in a torsional vibration damper, the length of an elastic element can be changed in dependence on a relative angle between two rotational subassemblies, with the degree of change in length being variable in dependence on the relative angle. Furthermore, a thrust piston of a coupling element, which couples the two subassemblies, can be displaced in dependence on the relative angle, relative to a first one of the two subassemblies.
Claims18
A torsional vibration damper comprising:
- a first subassembly and a second subassembly rotatably moving relative to one another;
- and
- at least one coupling element including an essentially tangentially effective elastic element for interconnecting the first and second subassemblies, and at least one thrust piston connected to the elastic element,
- wherein during a first phase in which the first and second subassemblies rotate relative to one another about a predetermined angle of rotation, the thrust piston moves slower than said first subassembly and is moved faster than said first subassembly during a second phase when the rotation of the first and second subassemblies exceeds the predetermined angle of rotation, whereby the thrust piston applies upon the first subassembly in opposition to the rotation thereof a restoring force which increases with increase in the relative rotation of the first and second subassemblies above the predetermined angle of rotation.
Dependencies are inferred from the claim text.