Fluid-filled type vibration-damping device

Details Fluid-filled type vibration-damping device Fluid-filled type vibration-damping device

2006-03-23

2008-08-19

Burch, Melody M (Department: 3683)

Spring devices

Resilient shock or vibration absorber

Including energy absorbing means or feature

C267S140150

Reexamination Certificate

active

07413174

ABSTRACT:
A fluid-filled type vibration-damping device having: an elastic body connecting first and a second mounting members; a pressure-receiving chamber formed axially below the main rubber elastic body and partially defined by the main rubber elastic body; an equilibrium chamber formed between the main rubber elastic body and a flexible film by disposing the flexible film so as to cover an outside face of the main rubber elastic body; and an orifice passage through which both chambers communicate with each other. An equilibrium-chamber-side opening of the orifice passage is situated in proximity to an axial lower end of the outside face of the elastic body. A guide groove extending axially upward is formed in proximity to the equilibrium-chamber-side opening. A projecting rib projects from the flexible film towards the guide groove is formed extending along the guide groove.

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