Vibration damper with axial caps and diaphragm-edge areas

Details Vibration damper with axial caps and diaphragm-edge areas Vibration damper with axial caps and diaphragm-edge areas

1992-11-09

1994-06-14

Oberleitner, Robert J.

Spring devices

Resilient shock or vibration absorber

Including energy absorbing means or feature

267219, 248562, F16F 1300

Patent

active

053203321

ABSTRACT:
A hydraulically damped multi-chamber hydraulic bushing is disclosed, which is capable of being loaded perpendicular to its axis. The bushing comprises two supporting sleeves which surround one another and are braced against each other by way of at least one spring element of an elastic material. The spring element at least partially surrounds the inner supporting sleeve, and at least two chambers--which are filled with an incompressible fluid--are arranged diametrically opposite one another. The chambers are fluidly interconnected through at least one connecting port. The chambers are formed by the outer supporting sleeve and a movable chamber wall that is turned toward the inner supporting sleeve. Each chamber wall has a central area that is resistant to expansion and an edge area with a rolling-diaphragm-type design, and is formed in one piece with the spring element. During use, the central areas and the inner supporting sleeve define a gap, which extends in the axial direction and has a maximum radial width of 1 mm.

REFERENCES:
patent: 4568069 (1986-02-01), Poupard
patent: 4871152 (1989-10-01), Funahashi
patent: 4936555 (1990-06-01), Ishiyama et al.
patent: 5184803 (1993-02-01), Tanabe et al.

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