Fluid-elastomeric damper assembly including internal pumping...

Details Fluid-elastomeric damper assembly including internal pumping... Fluid-elastomeric damper assembly including internal pumping...

2011-04-26

2011-04-26

Siconolfi, Robert A (Department: 3657)

Spring devices

Vehicle

Mechanical spring and nonresilient retarder

C267S064170, C267S140110, C267S294000, C267S141100

Reexamination Certificate

active

07931258

ABSTRACT:
A fluid-elastomeric damper assembly operable for damping relative motion between a first structure and a second structure including a housing structure grounded to the first structure and a plurality of elastomer seals coupled to the housing structure, the housing structure and the plurality of elastomer seals defining a fluid-elastomeric chamber operable for containing a fluid. The fluid-elastomeric damper assembly also including one or more piston structures disposed within the housing structure and the fluid-elastomeric chamber, the one or more piston structures grounded to the first structure and driven by the second structure, and the one or more piston structures each including a first substantially fluid-filled chamber and a second substantially-fluid-filled chamber in communication via an orifice, the first substantially fluid-filled chamber and the second substantially fluid-filled chamber also in communication with the fluid-elastomeric chamber. The housing structure is operable for pumping the fluid through the orifice.

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