MECHANICALLY TUNED HYDRAULIC ENGINE MOUNT
First Claim
Patent Images
1. A hydraulic mount for an operating component of a vehicle comprising:
- first and second mounting members;
a body connected to one of said mounting members and a base connected to the other of said mounting members;
a partition interposed said body and said base and including an orifice track formed therein;
a fluid pumping chamber formed between said body and said partition and a fluid reservoir formed between said partition and a member interposed said partition and said base;
fluid flow ports communicating said orifice track with said pumping chamber and said reservoir, respectively; and
a member operable to change the cross sectional area of said orifice track to selectively vary the vibration damping characteristics of said mount.
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Accused Products
Abstract
A hydraulic engine mount includes an orifice track formed in a partition between an elastomer body and a base member of the mount, the partition being formed by two separable orifice plates. An annular fluid filled tuning chamber is disposed adjacent the orifice track and separated therefrom by a flexible membrane. An actuator is in communication with the tuning chamber for forcing pressure fluid into or out of the chamber to selectively deflect or distend the membrane to modify the cross sectional area of the orifice track and the vibration damping characteristics of the mount.
14 Citations
20 Claims
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1. A hydraulic mount for an operating component of a vehicle comprising:
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first and second mounting members;
a body connected to one of said mounting members and a base connected to the other of said mounting members;
a partition interposed said body and said base and including an orifice track formed therein;
a fluid pumping chamber formed between said body and said partition and a fluid reservoir formed between said partition and a member interposed said partition and said base;
fluid flow ports communicating said orifice track with said pumping chamber and said reservoir, respectively; and
a member operable to change the cross sectional area of said orifice track to selectively vary the vibration damping characteristics of said mount. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 19, 20)
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12. A hydraulic mount for an operating component of a vehicle comprising:
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a body;
a base member;
a partition interposed said body and said base member and including an orifice track formed therein, said partition comprising first and second orifice plates disposed adjacent each other, one of said orifice plates defining at least in part said orifice track and the other of said orifice plates including an elongated fluid filled mount tuning chamber formed therein;
a fluid pumping chamber formed between said body and said partition and a fluid reservoir formed between said partition and said base member;
fluid flow ports communicating said orifice track with said pumping chamber and said reservoir, respectively; and
a membrane interposed said orifice track and said tuning chamber and operable to change the cross sectional area of said orifice track to vary the volume of fluid between said pumping chamber and said reservoir to selectively vary the vibration damping characteristics of said mount.
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18. A hydraulic mount for an operating component of a vehicle comprising:
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a body;
a base member;
a partition interposed said body and said base member and defining at least in part an orifice track and an elongated fluid filled mount tuning chamber formed therein;
a fluid pumping chamber formed between said body and said partition and a fluid reservoir formed between said partition and said base member;
fluid flow ports communicating said orifice track with said pumping chamber and said reservoir, respectively;
a membrane interposed said orifice track and said tuning chamber and operable to be deflected to change the cross sectional area of said orifice track to vary the volume of fluid between said pumping chamber and said reservoir to selectively vary the vibration damping characteristics of said mount; and
an actuator for controlling fluid admitted to said tuning chamber to vary deflection of said membrane.
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Specification