Spring devices – Resilient shock or vibration absorber – Including energy absorbing means or feature
Patent
1992-01-13
1993-01-05
Oberleitner, Robert J.
Spring devices
Resilient shock or vibration absorber
Including energy absorbing means or feature
2671411, 26714015, 188267, F16M 100
Patent
active
051763680
ABSTRACT:
An engine mount includes a housing connectable to a vehicle chassis and a hub connectable to a vehicle engine. The hub is movable relative to the housing toward and away from each other. A fluid chamber is located between within the hub and the housing and has magnetic fluid contained therein. An inner cylinder is concentric with an outer cylinder. The inner and outer cylinders are movable in the fluid chamber. An outer electromagnetic assembly is fixedly connected to the housing and is located between the housing and the outer cylinder. An inner electromagnetic assembly is fixedly connected to the hub and is located in a space interior of the inner cylinder. The outer electromagnetic assembly and the outer cylinder define an outer annular gap therebetween. The inner electromagnetic assembly and the inner cylinder define an inner annular gap therebetween. The inner and outer electromagnetic assemblies are selectively energizeable for controlling the shear strength and the apparent viscosity of the magnetic fluid in the inner and outer annular gaps to thereby control relative movement of the hub and the housing and thus relative movement of the vehicle chassis and the vehicle engine.
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Oberleitner Robert J.
Schwartz Chris
TRW Inc.
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