Patent ID: 7270321
Filing Date: 2007-09-18
Classification: B64C,F16F

Abstract:
1. A fluid-elastomeric damper assembly operable for damping a relative motion between a first structure and a second structure, the fluid-elastomeric damper assembly comprising: a plurality of elastomer seals coupled to a fluid-elastomeric chamber housing, wherein the fluid-elastomeric chamber housing and the plurality of elastomer seals define an outside fluid-elastomeric chamber containing a fluid; an internal pumping mechanism with at least one fluid moving piston disposed within the outside fluid-elastomeric chamber, wherein the internal pumping mechanism is grounded to the first structure and driven by the second structure, and wherein the at least one piston forces said fluid through at least one restriction orifice between a first fluid variable volume chamber and a second fluid variable volume chamber, said first fluid variable volume chamber and said second fluid variable volume chamber distal from said elastomer seals; said first fluid variable volume chamber including a first fluid backfiller, said first fluid backfiller providing fluid communication of said fluid from said outside fluid-elastomeric chamber into said first fluid variable volume chamber and inhibiting a flow of said fluid from said first fluid variable volume chamber into said outside fluid-elastomeric chamber, said second fluid variable volume chamber including a second fluid backfiller, said second fluid backfiller providing fluid communication of said fluid from said outside fluid-elastomeric chamber into said second fluid variable volume chamber and inhibiting a flow of said fluid from said second fluid variable volume chamber into said outside fluid-elastomeric chamber and wherein said relative motion between said first structure and said second structure is operable for pumping the fluid through said at least one restriction orifice.