Hydraulically damped bushings

Details Hydraulically damped bushings Hydraulically damped bushings

1991-01-08

1992-12-08

Oberleitner, Robert J.

Spring devices

Resilient shock or vibration absorber

Including energy absorbing means or feature

2671412, F16F 1300

Patent

active

051691302

ABSTRACT:
A hydraulically damped bushing comprising two tubular bodies surrounding each other and joined with each other by an elastomeric member so designed as to form two sealed cavities communicating with each other by a narrow channel, the cavity-channel assembly being filled with a liquid, whereas the portion of said member which defines one of the cavities consists of a tight bellows whose edges are attached sealingly onto the external body. This bushing further comprises, within said defined cavity, a second tight bellows which is sealingly attached onto the external tubular body, the inner volume of said second bellows being vented to the open air through an aperture bored into said body.

REFERENCES:
patent: 4632370 (1986-12-01), Ticks et al.
patent: 4690389 (1987-09-01), West
patent: 4790520 (1988-12-01), Tanaka et al.
patent: 4834351 (1989-05-01), Freudenberg et al.
patent: 4893798 (1990-01-01), Hiba et al.
patent: 4895353 (1990-01-01), Roth et al.
patent: 4907786 (1990-03-01), Okazaki et al.
patent: 4923178 (1990-05-01), Matsumoto et al.
patent: 4982938 (1991-01-01), Bremer
patent: 5013012 (1991-05-01), Jouade

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