Fluid-damped strut

Details Fluid-damped strut Fluid-damped strut

1989-12-01

1991-03-19

Halvosa, George E.

Spring devices

Resilient shock or vibration absorber

Including energy absorbing means or feature

180312, 248562, 248636, 267219, F16F 500

Patent

active

050004280

ABSTRACT:
A fluid-filled strut particularly suited for automotive engine torque control applications. The strut includes a frame having a pair of fluid-filled chambers located adjacent opposite ends. Each chamber is defined by juxtaposed recesses in a pair of elastomeric blocks located on opposite sides of the frame. A discrete elongate fluid conduit connects opposite axial ends of each chamber. Attachment plates on opposite sides of the frame are bonded to the elastomeric blocks and are connected together by a connector bolt sleeve that extends across the frame through the fluid-filled chamber. The elastomeric blocks permit the frame to move in alternate axial directions relative to the sleeve, and in response to such motion, fluid in the chamber is displaced in alternate directions through the conduit to effect the desired motion damping. The elastomeric blocks are shaped to provide a desirable controlled snubbing action in both directions.

REFERENCES:
patent: 2812175 (1957-11-01), Hirst
patent: 4377216 (1983-03-01), Ueno
patent: 4518058 (1985-05-01), Fister
patent: 4679779 (1987-07-01), Hodonsky
patent: 4706946 (1987-11-01), Thorn et al.
patent: 4779853 (1988-10-01), Sugino et al.

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