The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 21, 1993
Filed:
Nov. 24, 1992
Andrew K Zup, Edgerton, OH (US);
James P Hamberg, Beavercreek, OH (US);
General Motors Corporation, Detroit, MI (US);
Abstract
A hydraulic mount assembly includes a pair of mounting members connected together through a hollow elastomeric body. This hollow body is closed by a resilient diaphragm so as to form a cavity for a damping liquid. A partition divides the cavity into a primary chamber formed between the partition and the hollow body and a secondary chamber formed between the partition and the diaphragm. The partition also includes a bypass track, a damping orifice track and a decoupler passage for providing fluid communication between the cambers. A decoupler is held for limited reciprocating movement in the decoupler opening. An actuator is provided for selectively releasing/disabling the decoupler and opening/closing the bypass track. In a first operative position, the actuator closes the bypass track and allows the decoupler to reciprocate. In a second operative position the actuator engages and disables the decoupler, seals the decoupler opening, and opens the bypass track. In a third operative position the actuator releases the decoupler to allow free reciprocating movement and the bypass track remains open.