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US 5,666,862 AGranted
Torsional vibration damper
AssigneeFirma Carl Freudenberg
InventorsHans-Gerd Eckel, Anja Kunkel, Michael Muller
Life of this patent
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Abstract
A torsional vibration damper for a shaft rotating about an axis. The damper comprises a hub element joined to the shaft, such that at least two inertial masses, pivotable in the peripheral direction about pivot axes, are retained on the hub element. At least one spring for each inertial mass is provided to determine the static position of the inertial masses. The pivot axes lie between the inertial masses and the axis of the shaft.
Claims26
A torsional vibration damper for a shaft rotating about an axis, comprising:
- a hub configured to be joined to the shaft for movement therewith about a longitudinally extending central axis;
- a plurality of inertial masses;
- at least one tension element fixedly connected to each said inertial mass, each said tension element having a pivotable connection to the hub about a pivot axis, such that each said tension element provides a pivotable connection of the inertial mass about the pivot axis, the pivot axes of the tension elements extending parallel to the hub axis and being located between their respective inertial masses and the hub axis;
- and
- at least one spring element in association with each said inertial mass, each said spring element being configured to maintain the inertial mass in a neutral position when the hub and the inertial masses are at rest, and providing a force circumferentially directed against the tension element to urge the inertial mass towards its neutral position when the inertial mass is displaced from its neutral position;
- wherein the distance between the hub axis and the inertial masses varies in dependence upon the centripetal forces that arise when the torsional vibration damper rotates which are transferred to the inertial masses by way of the tension elements, acting in conjunction with the restorative force acting on the inertial masses that is supplied by the spring elements.
3 more elements
A torsional vibration damper for a shaft rotating about an axis, comprising:
- a hub configured to be joined to the shaft for movement therewith about a longitudinally extending central axis;
- a plurality of inertial masses;
- at least one tension element fixedly connected to each said inertial mass, each said tension element having a pivotable connection to the hub about a pivot axis, wherein each said tension element is capable of supporting a tensile load, such that each said tension element provides a pivotable connection of the inertial mass about the pivot axis, the pivot axes of the tension elements extending parallel to the hub axis and being located between their respective inertial masses and the hub axis;
- and
- at least one spring element in association with each said inertial mass, each said spring element being configured to maintain the inertial mass in a neutral position when the hub and the inertial masses are at rest, and providing a force circumferentially directed against the tension element to urge the inertial mass towards its neutral position when the inertial mass is displaced from its neutral position;
- wherein the distance between the hub axis and the inertial masses varies in dependence upon the centripetal forces that arise when the torsional vibration damper rotates which are transferred to the inertial masses by way of the tension elements, acting in conjunction with the restorative force acting on the inertial masses that is supplied by the spring elements.
3 more elements
Dependencies are inferred from the claim text.