Separating piston for hydropneumatic one-tube vibration damper

Details Separating piston for hydropneumatic one-tube vibration damper Separating piston for hydropneumatic one-tube vibration damper

1976-03-02

1979-12-11

Wyche, Benjamin W.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

188322, F16J 1520, B61F 1522

Patent

active

041780027

ABSTRACT:
A hydropneumatic one-tube vibration damper in known fashion comprises a cylinder and a displaceable piston separating the cylinder space into a chamber containing a hydraulic fluid and a chamber containing a pneumatic fluid. This piston carries an annular elastomeric sealing element comprising an inner portion clamped by said piston, an outer portion contacting said cylinder and an intermediate web portion, whereby small displacements of the piston can be accommodated by flexing of said web portion without displacement of said outer sealing element portion relative to said cylinder. Reinforcements may be embedded in the outer portion of the sealing element to increase its contact pressure against the cylinder and means may be provided to prevent canting of the piston in the cylinder.

REFERENCES:
patent: 1607811 (1926-11-01), Blum
patent: 2111312 (1938-03-01), Clark
patent: 2188106 (1940-01-01), Caldwell
patent: 2364823 (1944-12-01), Schnell
patent: 2509151 (1950-05-01), Kasten
patent: 2709118 (1955-05-01), Martin
patent: 2753008 (1956-07-01), Peirce
patent: 2781208 (1957-02-01), Foss
patent: 2864258 (1958-12-01), Klingler

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