Fluid-filled elastic mount having two pressure-receiving chamber

Details Fluid-filled elastic mount having two pressure-receiving chamber Fluid-filled elastic mount having two pressure-receiving chamber

1990-10-02

1993-02-23

Halvosa, George A.

Spring devices

Resilient shock or vibration absorber

Including energy absorbing means or feature

180312, 248562, 248636, 267219, F16F 1300, F16M 102

Patent

active

051883465

ABSTRACT:
A fluid-filled elastic mount including an elastic body which is interposed between radially spaced-apart inner and outer sleeves and which at least partially defines a first pressure-receiving chamber containing a non-compressible fluid. A partition is provided for partially defining at least one second pressure-receiving chamber filled with the fluid. The partition includes a displaceable flexible layer which permits a pressure change in the first pressure-receiving chamber to be transmitted to the second pressure-receiving chamber or chambers. A variable-volume equilibrium chamber filled with the fluid is partially defined by a flexible diaphragm, and communicates with the first pressure-receiving chamber through a first orifice passage, and with each second pressure-receiving chamber through a second orifice passage whose ratio of a transverse cross sectional area to a length is larger than that of the first orifice passage.

REFERENCES:
patent: 4749173 (1988-06-01), Kanda
patent: 4861005 (1989-08-01), Bausch
patent: 4884789 (1989-12-01), Takeda et al.
patent: 4895353 (1990-01-01), Roth et al.
patent: 4909489 (1990-03-01), Doi
patent: 4971300 (1990-11-01), Ticks
patent: 4971456 (1990-11-01), Hori

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