Fluid-filled vibration damping device

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

2006-04-11

2006-04-11

Williams, Thomas (Department: 3683)

Spring devices

Resilient shock or vibration absorber

Including energy absorbing means or feature

Reexamination Certificate

active

07025340

ABSTRACT:
A fluid-filled vibration damping device includes: an elastic body connecting a first mounting member and a second mounting member; and a partition member assembled with the second mounting member to form on its opposite sides a pressure receiving chamber partially defined by the elastic body and an equilibrium chamber partially defined by a flexible layer, both being filled with non-compressible fluid. The partition member defines an orifice passage connecting the two chambers, and including a first partitioning wall portion partitioning the orifice passage from the pressure-receiving chamber, and a second partitioning wall portion of rubber partitioning the orifice passage from the equilibrium chamber. A partial reinforcing member is provided to the partition member extending across the first and second partitioning wall portions to reinforce an opening of the orifice passage to the pressure-receiving chamber.

REFERENCES:
patent: 6357731 (2002-03-01), Tanahashi
patent: 2001/0004141 (2001-06-01), Shimoda et al.
patent: 2002/0140144 (2002-10-01), Hibi et al.
patent: 2003/0205856 (2003-11-01), Hibi et al.
patent: 2004/0119215 (2004-06-01), Nanno et al.
patent: 7-243472 (1995-09-01), None
patent: 2001-165231 (2001-06-01), None

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