Fluid-filled cylindrical elastic mount having two orifices and v

Details Fluid-filled cylindrical elastic mount having two orifices and v Fluid-filled cylindrical elastic mount having two orifices and v

1993-08-23

1994-12-27

Oberleitner, Robert J.

Spring devices

Resilient shock or vibration absorber

Including energy absorbing means or feature

188299, F16M 500

Patent

active

053758226

ABSTRACT:
A fluid-filled cylindrical elastic mount is disclosed which includes an inner and an outer sleeve connected by an elastic body, and a pair of fluid chambers formed in the elastic body. A non-compressible fluid contained in the mount flows between the fluid chambers, through one of two differently tuned orifice passages defined by an orifice structure. One of the orifice passages having the higher ratio of its cross sectional area to its length is formed at least partially as a tunnel extending through a tunnel-defining portion of the orifice structure. A valve assembly including a rotary valve and a valve housing is attached to the orifice structure such that the rotary valve is located in the tunnel of the orifice passage and such that the valve housing is fixed to a radially outer surface of the tunnel-defining portion which is exposed to an outside of the mount. The rotary valve rotatably received in the valve housing is selectively placed in a position for permitting flow of the fluid through the orifice passage, and in a position for inhibiting the flow of the fluid therethrough.

REFERENCES:
patent: 4858899 (1989-08-01), Saotome et al.

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