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US 5,332,203 AGranted
Dual chambered, active vibration damper with reactive force producing pistons
AssigneeNoise Cancellation Technologies, Inc.
InventorsWilliam E. Gossman, Michael J. Burke
Life of this patent
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Abstract
An actively controlled mount system to control vibration which permits static forces from a machine while decoupling transmission of dynamic vibration forces. The mount system includes opposed force chamber (156, 160) with pistons which control movement of an engine connected bushing (3) to allow compensatory force generated by the opposed chambers to transfer thereto to attenuate vibration from the engine.
Claims7
A hydraulic system for use in a system for actively-controlling and compensating for dynamic forces exerted from a vibrating element, comprising:
- a mounting bushing supporting the vibrating element,
- a substantially cylindrical outer housing,
- first and second fluid filled compensatory force generating chambers, provided in said housing in opposed connection with said mounting bushing therebetween, said first and second fluid filled compensatory force generating chambers each including a force producing means for generating first and second opposed forces in an uniaxial direction, respectively, through flow of the fluid to opposing sides of said opposed connection, said first and second forces being equal in magnitude but opposite in phase and being generated in response to
- detection of relative static and dynamic forces exerted by the vibrating element,
- said first and second forces being uniaxially exerted to thereby compensate for the static and dynamic forces exerted by the vibrating element.
2 more elements
Dependencies are inferred from the claim text.