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:
Jul. 23, 2002
Filed:
Feb. 09, 2001
Thomas A. Baudendistel, Farmersville, OH (US);
Sanjiv G. Tewani, Lebanon, OH (US);
Mark W. Long, Bellbrook, OH (US);
James E. Dingle, Cincinnati, OH (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
A hydraulic engine mount includes opposed mounting members secured to an elastomeric body and a base, respectively, and an orifice plate assembly interposed the body and the base to define a pumping chamber and a reservoir or opposed pumping chambers for fluid to flow therebetween through an orifice track formed by the orifice plate assembly. One or two elastomeric decoupler discs may be secured in recesses between two orifice plates of the orifice plate assembly and form spaces which are operable to be in communication with a vacuum source to impose vacuum pressure on the decouplers at selected frequencies as controlled by solenoid operated valves and a controller. The mount may be operated at a substantially reduced dynamic stiffness lower than the static stiffness of the mount to provide improved low amplitude vibration isolation, in particular.