Patent ID: 6527262
Filing Date: 2003-03-04
Classification: F16F

Abstract:
A fluid-filled elastic engine mount comprising:a first and a second mounting member which are spaced apart from each other; an elastic body elastically connecting said 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 filled with said non-compressible fluid, said flexible diaphragm being displaceable to permit a change in a volume of said equilibrium chamber; a movable oscillating plate partially defining said pressure-receiving chamber, said movable oscillating plate being oscillated by means of an oscillating device, for controlling pressure of said fluid in said pressure-receiving chamber; a first and a second orifice passage for effecting fluid communication between said pressure-receiving and equilibrium chambers, said first orifice passage being tuned to a low frequency band corresponding to an engine shake vibration, while said second orifice passage being tuned to a medium-frequency band corresponding to an engine idling vibration, said first and second orifice passages being formed independently of said movable oscillating plate and being disposed parallel to each other; and a deformable elastic plate being disposed in one of opposite opening of said second orifice passage on the side of said pressure-receiving chamber so that said deformable elastic plate closes said opening of said second orifice passage on the side of said pressure-receiving chamber.