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:
Mar. 04, 2003
Filed:
Apr. 17, 2001
Tokai Rubber Industries, Ltd., Komaki, JP;
Abstract
A fluid-filled elastic engine mount including an elastic body elastically connecting two mutually spaced-apart first and second mounting members and partially defining a pressure-receiving chamber filled with a non-compressible fluid, a flexible diaphragm partially defining an equilibrium chamber whose volume is variable, a movable oscillating plate partially defining the pressure-receiving chamber, an oscillating device for oscillating the movable oscillating plate for controlling pressure of the fluid in the pressure-receiving chamber, a first and a second orifice passage for effecting fluid communication between the pressure-receiving and equilibrium chambers. The first and second orifice passages are tuned to a low frequency band corresponding to an engine shake vibration and a medium-frequency range corresponding to an engine idling vibration, while the first and second orifice passages are disposed parallel to each other. The elastic engine mount further comprises a deformable elastic plate disposed in one of opposite opening of the second orifice passage located on the side of the pressure-receiving chamber, so that the deformable elastic plate closes the opening of the second orifice passage on the side of the pressure-receiving chamber.