Fluid-filled cylindrical elastic mount having moveable block and

Details Fluid-filled cylindrical elastic mount having moveable block and Fluid-filled cylindrical elastic mount having moveable block and

1990-06-11

1991-08-06

Halvosa, George E. A.

Spring devices

Resilient shock or vibration absorber

Including energy absorbing means or feature

180312, 248562, 248636, F16F 500, F16F 900, F16F 1300, B60K 512

Patent

active

050370731

ABSTRACT:
A fluid-filled cylindrical elastic mount having an elastic body between an inner and an outer sleeve, a movable member movably disposed in a pressure-receiving chamber defined by the outer sleeve and the elastic body, a rigid member cooperating with the outer sleeve to define a space diametrically opposite to the pressure-receiving chamber in a load-receiving direction of the mount, and a partition member having a flexible portion and dividing the space into two sections one of which serves as an equilibrium chamber disposed diametrically opposite to the pressure-receiving chamber. The movable member and the inner surface of the pressure-receiving portion define a fluid resonance portion for isolating high-frequency vibrations. An orifice passage is spirally formed for fluid communication between the pressure-receiving and equilibrium chambers, for damping low-frequency vibrations.

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European Patent Office Search Report No. 89104030.5, Jun. 23, 1989.
European Patent Office Search Report No. 89120908.2, May 2, 1990.

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