Cylindrical elastic mount containing highly viscous fluid and ha

Details Cylindrical elastic mount containing highly viscous fluid and ha Cylindrical elastic mount containing highly viscous fluid and ha

1994-08-31

1996-02-06

Oberleitner, Robert J.

Spring devices

Resilient shock or vibration absorber

Including energy absorbing means or feature

267219, F16F 136, F16M 1300

Patent

active

054890861

ABSTRACT:
A fluid-filled cylindrical elastic mount which includes radially spaced-apart inner and outer sleeves, and an elastic body interposed between the inner and outer sleeves for elastical connection thereof. The elastic body has diametrically opposite fluid chambers containing a highly viscous fluid, and at least one fluid passage which communicates with the fluid chambers. The outer sleeve has at least one inlet through which the highly viscous fluid is injected into the mount. Each of the inlets is formed in a portion of the outer sleeve which defines the corresponding fluid passage, and is closed by a sealing member fixed to the outer sleeve. The elastic mount further includes a pair of restricting protrusions which are respectively formed in the fluid chambers to protrude from the inner sleeve toward the outer sleeve in radially opposite directions, such that each protrusion has a radial end face which cooperates with the outer sleeve to define a restricted portion which has a predetermined radial dimension.

REFERENCES:
patent: 4605207 (1986-08-01), Konishi
patent: 4840357 (1987-06-01), Jouade
patent: 4883260 (1989-11-01), Kanda
patent: 4893799 (1990-01-01), de Fontenay
Patent Abstracts of Japan, vol. 12, No. 409 (M-758)(3256) 28 Oct. 1988 & JP-A-63 149 442 (Kinugawa Rubber Ind Co Ind) 22 Jun. 1988.
Patent Abstracts of Japan, vol. 12, No. 378 (M-751)(3225) 11 Oct. 1988 & JP-A-63 130 944 (Tokai Rubber Ind Ltd) 3 Jun. 1988.

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