Supports – Resilient support – Including additional energy absorbing means – e.g. – fluid or...
Patent
1988-06-21
1989-11-21
Chin-Shue, Alvin C.
Supports
Resilient support
Including additional energy absorbing means, e.g., fluid or...
248631, 248636, 248638, F16M 700
Patent
active
048817120
ABSTRACT:
A hydraulic engine mounting system for a vehicle engine includes a pair of engine mount assemblies having elastomeric bodies including two longitudinally aligned integral engine mounts. The mounts are in fluid communication with one another via an integral orifice track molded as a groove at the interface between the elastomeric body and a mating base plate. The engine mount assembly is mounted on a vehicle frame such that the common axis of the hydraulic chambers is situated transversely to the torque axis of the engine. During operation, the engine pitches about this torque axis. The pitching action of the engine causes one end mount to compress forcing hydraulic fluid along the orifice track into the other mount. The other mount simultaneously expands and receives this excess fluid. Advantageously, the flow of fluid along the orifice track produces a damping effect of the motion and vibration to provide isolation from the vehicle frame. A torque strut is mounted between the engine and the frame, to prevent excessive engine pitching motion, completing the system.
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Chin-Shue Alvin C.
General Motors Corporation
Phillips R. L.
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