Rotary hydraulic machine

Details Rotary hydraulic machine Rotary hydraulic machine

1975-07-29

1977-04-19

Freeh, William L.

Motors: expansible chamber type

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

Motive fluid supply or discharge through piston

F01B 1306

Patent

active

040181391

ABSTRACT:
The invention relates generally to rotary hydraulic machines of the kind comprising, in a casing, a rotatably-mounted shaft and a plurality of cylinder-piston units mounted radially in star around the shaft and co-operating with eccentric means so arranged as to impart a relative movement to each of said units in turn, conjointly with the rotation of the shaft, and also with fluid-circulation means so arranged that each of the cylinder-piston units are supplied with fluid in turn. The eccentric means may comprise an eccentric bearing surface provided on said shaft and co-operating with the cylinder-piston units supplied with fluid through conduits formed in the shaft, under the control of a distribution ring engaged on the eccentric surface. The cylinders of the units are oscillatably mounted, and controlled retention means prevent any driving action on the distribution ring by the eccentric surface.

REFERENCES:
patent: 3168006 (1965-02-01), Bennett
patent: 3199460 (1965-08-01), Bush et al.
patent: 3320902 (1967-05-01), Paschke
patent: 3663124 (1972-05-01), Schultz
patent: 3777624 (1973-12-01), Dixon
patent: 3782245 (1974-01-01), Aldinger

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