Hydraulic anti-vibration supports

Details Hydraulic anti-vibration supports Hydraulic anti-vibration supports

1993-10-28

1995-08-22

Oberleitner, Robert J.

Spring devices

Resilient shock or vibration absorber

Including energy absorbing means or feature

267219, F16F 500

Patent

active

054432456

ABSTRACT:
A hydraulic anti-vibration device includes two rigid frame members, an elastomer body, two sealed chambers, a constricted passage putting the two sealed chambers into communication with each other, a valve member that defines portions of the two chambers and that has an axis of revolution, and two grids between which the valve member is interposed. The grids limit displacements of the valve member. Interposed non-uniformities cause the amount of contact the valve member has with a grid to vary progressively and angularly around the central axis of the valve member. The non-uniformities are disposed around the central axis in a distribution that is angularly non-repetitive.

REFERENCES:
patent: 4159091 (1979-06-01), Le Salver et al.
patent: 4647023 (1987-03-01), Day et al.
patent: 4711206 (1987-12-01), Andra et al.
patent: 4938463 (1990-07-01), Miyamoto
patent: 4986510 (1991-01-01), Bellamy et al.
patent: 4997169 (1991-03-01), Nakamura et al.
patent: 5104100 (1992-04-01), Simuttis
patent: 5139240 (1992-08-01), Miyamoto
Patent Abstracts of Japan, vol. 12, No. 92 (M-679)(2938) 24 Mar. 1988 & JP-A-62 228 726 (Kinugawa) 7 Oct. 1987.

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