Radial piston pump

Details Radial piston pump Radial piston pump

1978-04-05

1980-09-16

Freeh, William L.

Pumps

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

Radial cylinders

417DIG1, F04B 104

Patent

active

042227143

ABSTRACT:
A radial piston pump has a housing, a shaft mounted for rotation in the housing and including an eccentric provided with a cam track, inlet and outlet ports in the housing, valve means installed in the ports, a plurality of radially reciprocable pistons spaced about the eccentric and each having a radially inner surface in sliding engagement with the cam track, and a layer of synthetic plastic material having a low coefficient of friction on each of the surfaces, so as to reduce friction between the same and the cam track.

REFERENCES:
patent: 3059586 (1962-10-01), Brailsford
patent: 3183847 (1965-05-01), Raymond
patent: 3397856 (1968-08-01), Sullivan et al.
patent: 3885459 (1975-05-01), Freese
patent: 3912421 (1975-10-01), Gelin
patent: 3945766 (1976-03-01), Gelon

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