Switchable bearing

Details Switchable bearing Switchable bearing

1992-12-10

1994-09-06

Oberleitner, Robert J.

Spring devices

Resilient shock or vibration absorber

Including energy absorbing means or feature

267219, F16F 500

Patent

active

053441273

ABSTRACT:
A switchable bearing is disclosed which comprises a cup-shaped housing sealed by an annular spring element of an elastomeric material. Between the spring element and the housing base is a separating wall, which has at least one flow-through opening and which, together with the spring element, delimits a working chamber and, together with the housing, delimits a compensating chamber. The working chamber and the compensating chamber communicate through the flow-through opening and are filled with a hydraulic fluid. The flow-through opening is sealed by a piston of a control unit, arranged at least partially in the compensating chamber. The piston is actuated by a pressurized medium, and is connected in a gastight and relatively movable manner to an aneroid chamber, which is rigidly mounted in the housing and is capable of being charged with a pressurized medium. The aneroid chamber is delimited by a flexible first ring diaphragm, which seals off the piston and the aneroid chamber from the housing.

REFERENCES:
patent: 4653734 (1987-03-01), Jordens
patent: 4660812 (1987-04-01), Dan et al.
patent: 4700931 (1987-10-01), Eberhard et al.
patent: 4834350 (1989-05-01), de Fontenay
patent: 4886251 (1989-12-01), Hausserman
patent: 4901986 (1990-02-01), Smith
patent: 4921049 (1990-05-01), Kaiser et al.
patent: 5092566 (1992-03-01), Freudenberg
patent: 5102105 (1992-04-01), Hamaekers et al.
patent: 5145156 (1992-09-01), Muramatsu et al.

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