Motors: expansible chamber type – Three or more cylinders arranged in parallel radial or... – Control valve seating surface contact maintained by fluid...
Patent
1978-02-17
1980-01-01
Freeh, William L.
Motors: expansible chamber type
Three or more cylinders arranged in parallel radial or...
Control valve seating surface contact maintained by fluid...
91480, F01B 106
Patent
active
041810678
ABSTRACT:
A distributor for hydraulic motors, particularly radial-piston hydraulic motors, wherein an excellent hydraulic seal is provided in the area between the motor housing and the fluid distribution plate by the utilization of a tubular sleeve located in front of the distribution plate. At least two annular steps located on said sleeve which engage with corresponding annular steps on the housing provide such seal.
REFERENCES:
patent: 2969810 (1961-01-01), Dudley
patent: 3056357 (1962-10-01), Bohnhoff
patent: 3090361 (1963-05-01), Orshansky, Jr.
patent: 3199297 (1965-08-01), Croswhite
patent: 3696710 (1972-10-01), Ortelli
Freeh William L.
Riva Calzoni S.p.A.
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