Fluid damped elastomeric bushing

Details Fluid damped elastomeric bushing Fluid damped elastomeric bushing

1991-05-15

1993-02-09

Oberleitner, Robert J.

Spring devices

Resilient shock or vibration absorber

Including energy absorbing means or feature

267219, F16F 308, B60G 1300

Patent

active

051848031

ABSTRACT:
A fluid-damped elastomeric bushing has an inner sleeve and an outer sleeve disposed outwardly of the inner sleeve, and two sidewalls extending between the inner sleeve and the outer sleeve and a partition wall to thereby form a pair of fluid compartments. The fluid compartments has a main chamber and a supplemental chamber in communication with the main chamber. An elastic support member extends radially outwardly from the inner sleeve toward the outer sleeve between the side walls to form a first main chamber and a second main chamber.
An orifice device is disposed circumferentially along the outer sleeve for communicating the first and second main chambers for causing a fluid in one of the first and second main chambers to be forcibly fed to the other one of the first and second main chambers when a load is applied to the bushing.

REFERENCES:
patent: 4861004 (1989-08-01), Yokota et al.
patent: 4884789 (1989-12-01), Takeda et al.
patent: 4895353 (1990-01-01), Roth et al.
patent: 4921229 (1990-05-01), Hori
patent: 4941649 (1990-07-01), Funahashi et al.

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