Piston for a hydraulic piston machine of the multiple displaceme

Details Piston for a hydraulic piston machine of the multiple displaceme Piston for a hydraulic piston machine of the multiple displaceme

1985-07-08

1986-09-09

Freeh, William L.

Motors: expansible chamber type

Three or more cylinders arranged in parallel radial or...

Motive fluid bypass to or from assembly

91491, 92249, F01B 1306

Patent

active

046101950

ABSTRACT:
A piston for a hydraulic piston machine in which a piston body receives a ball in a space defined at one end of thereof. A bearing dish supports the ball in the space with an O-ring engaging the recess to seal the bottom surface of the bearing dish. Preferably the bearing dish is formed with a steel support layer, a bronze layer cast onto the steel support layer, and a plastic layer supporting the ball.

REFERENCES:
patent: 2277496 (1942-03-01), Maines
patent: 3749523 (1973-07-01), Wahl
patent: 3783748 (1974-01-01), Cunningham
patent: 3874275 (1975-04-01), Cunningham
patent: 4043255 (1977-08-01), Cunningham
patent: 4077269 (1978-03-01), Hodgkinson
patent: 4465394 (1984-08-01), Berthold

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