Radial piston machine

Details Radial piston machine Radial piston machine

1984-05-03

1985-11-26

Freeh, William L.

Pumps

Expansible chamber type

Moving cylinder

92240, 92247, 92248, 91488, F04B 1920, F04B 2900, F16J 900

Patent

active

045552231

ABSTRACT:
In a radial piston machine, there is provided an outer stator and an inner rotor rotatable on a control pintle provided with supply and discharge channels. The rotor contains at least one radial bore in which is slidable a spherical piston comprising an outer ball and an inner cylindrical sleeve. The radially inward end of the sleeve, which end is adapted to be acted upon by the outlet pressure of the machine, includes a sealing lip which, during operation, in particular at higher pressures, expands circumferentially and, under certain circumstances, moves in sealing abutment with the inner wall of the radial bore.

REFERENCES:
patent: 2855858 (1958-10-01), Larson et al.
patent: 2884292 (1959-04-01), Doner
patent: 3008781 (1961-11-01), Milster
patent: 3084633 (1963-04-01), Henrichsen
patent: 3249020 (1966-05-01), Albertsen
patent: 3272079 (1966-09-01), Bent
patent: 3366017 (1968-01-01), Firth et al.
patent: 3435774 (1969-04-01), Parrett
patent: 3783748 (1974-01-01), Cunningham
patent: 3955476 (1976-05-01), David
patent: 4144798 (1979-03-01), Cyphelly

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