Hybrid type vibration isolation apparatus
First Claim
1. Apparatus for isolating and attenuating vibrations between first and second members comprising:
- passive vibration absorbing means located between the first and second members for absorbing forces including forces along a first axis; and
axis vibration inducing means for applying active isolating vibration forces in response to detected relative vibration between said first and second members, said active vibration inducing means further comprising,a support mount frame attached to the second member, andan actuator located on the support mount frame adjacent the first member for applying said active vibration isolation forces along the first axis to said apparatus along with vibration isolation forces provided by the passive vibration absorbing means, said actuator and passive vibration absorbing means being collectively disposed between said second member and said support mount frame with said first member mounted therebetween,said an actuator additionally including a housing and a resilient diaphragm separating a pair of opposed fluid chambers contained within said housing.
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Accused Products
Abstract
A hybrid type vibration isolation mounting apparatus for supporting a first member at a second member, and including a passive vibration absorbing device, such as a typical rubberized engine mount, located between the first and second members, and an active vibration actuator for applying counter vibration isolation forces in parallel in response to the detected relative vibration of the first and second members, wherein the actuator is located on a support mount frame attached to the second member. The support mount frame provides a structure for the actuator force application, with continuous transfer of static loads between the first and second member being provided by the passive device. In its preferred embodiment, the apparatus is utilized in conjunction with vehicle engine mounts wherein the first member comprises the engine and the second member comprises the vehicle frame.
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Citations
14 Claims
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1. Apparatus for isolating and attenuating vibrations between first and second members comprising:
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passive vibration absorbing means located between the first and second members for absorbing forces including forces along a first axis; and axis vibration inducing means for applying active isolating vibration forces in response to detected relative vibration between said first and second members, said active vibration inducing means further comprising, a support mount frame attached to the second member, and an actuator located on the support mount frame adjacent the first member for applying said active vibration isolation forces along the first axis to said apparatus along with vibration isolation forces provided by the passive vibration absorbing means, said actuator and passive vibration absorbing means being collectively disposed between said second member and said support mount frame with said first member mounted therebetween, said an actuator additionally including a housing and a resilient diaphragm separating a pair of opposed fluid chambers contained within said housing. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. Apparatus for isolating and attenuating vibrations between first and second members comprising:
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passive vibration absorbing means located between the first and second members for absorbing forces including forces along a first axis; and active vibration inducing means for applying active isolating vibration forces in response to detected relative vibration between said first and second members, aid active vibration including means further comprising, a support mount frame attached to the second member, and an actuator located on the support mount frame adjacent the first member for applying said active vibration isolation forces along the first axis to said apparatus along with vibration isolating forces provided by the passive vibration absorbing means, said actuator additionally including a housing and a resilient diaphragm separating a pair of opposed fluid chambers contained within said housing, said passive vibration absorbing means including means for securing said resilient means between said first and second members at the second member, said means including flange means located between the other end of said first member and said second member. - View Dependent Claims (9, 10, 11)
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12. Apparatus for isolating and attenuating vibrations between first and second members comprising:
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passive vibration absorbing means located between the first and second members for absorbing forces including forces along a first axis; and active vibration inducing means for applying active isolating vibration forces in response to detected relative vibration between said first and second members, said active vibration inducing means further comprising, a support mount frame attached to the second member, and an actuator located on the support mount frame adjacent the first member for applying said active vibration isolating forces to said apparatus along with vibration isolation forces provided by the passive vibration absorbing means, said actuator additionally including a housing and a resilient diaphragm separating a pair of opposed fluid chambers contained within said housing, said support mount frame including a top plate, a bottom plate, and a plurality of elongated connecting means connecting the top and bottom plates together to form a rigid frame, and wherein said actuator includes a hydraulically actuated member supported in a housing attached to the top plate and being coupled to a top part of the first member. - View Dependent Claims (13, 14)
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Specification