Fluid-operated radial piston devices

Details Fluid-operated radial piston devices Fluid-operated radial piston devices

1975-05-14

1977-07-12

Freeh, William L.

Motors: expansible chamber type

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

Motive fluid bypass to or from assembly

P01B 1306

Patent

active

040346510

ABSTRACT:
A fluid-operated radial piston machine has two rotors rotating at the same angular velocity, with a working rotor being formed with substantially radial working chambers having working fluid flowing therethrough and having pistons reciprocable in the working chambers. The other rotor is a bearing rotor. Connections members are interposed between the pistons and the bearings rotor and are pivotally seated in the bearing rotor as well as in the respective pistons. The bearing rotor has axially extending incompletely circular grooves receiving cylindrical heads on the connection members, and the inner ends of the connection members are formed with cylindrical or spherical bearing surfaces seating in the pistons. Fluid pressure chambers are formed on the various bearing surfaces to receive fluid under pressure to reduce friction.

REFERENCES:
patent: 2284763 (1942-06-01), Olson
patent: 2972961 (1961-02-01), Clark
patent: 2977891 (1961-04-01), Bishop
patent: 3058429 (1962-10-01), Rocheville
patent: 3223046 (1965-12-01), Eickmann
patent: 3277834 (1966-10-01), Eickmann

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