Fluid-filled elastic mount for damping a wide frequency range of

Details Fluid-filled elastic mount for damping a wide frequency range of Fluid-filled elastic mount for damping a wide frequency range of

1988-08-15

1989-07-25

Oberleitner, Robert J.

Spring devices

Resilient shock or vibration absorber

Including energy absorbing means or feature

188379, 248562, 267219, F16M 500, F16M 1300, F16F 916, F16F 710

Patent

active

048505781

ABSTRACT:
A fluid-filled elastic mount including an elastic body for connection of a first and a second member, a closure member secured to the second member and cooperating with at least the elastic body to define a fluid chamber filled with a non-compressible fluid, a device for dividing the fluid chamber into a first chamber on the side of the first member and a second chamber on the side of the second member, a device for defining a passage for restricted communication between the first and second chambers, and a device for accommodating a pressure difference between the first and second chambers. The elastic mount further includes an operating device which has a recess, divides the first chamber into a first section on the side of the first member, and a second section on the side of the partition device in which the recess is open, cooperates with an inner wall surface of the first chamber to define an annular restriction gap, and is elastically connected to the first member, a mass member of a predetermined mass located in the recess, a first elastic member for elastic connection between the mass member and the operating device, a first passage supported by the mass member for fluid communication between the recess and the second section, and a second passage supported by the operating device for fluid communication between the recess and the first section.

REFERENCES:
patent: 4511126 (1985-04-01), Bernuchon et al.
patent: 4721288 (1988-01-01), Andra et al.
patent: 4721292 (1988-01-01), Saito

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