Radial piston pump

Details Radial piston pump Radial piston pump

1979-12-03

1982-01-19

Freeh, William L.

Pumps

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

Radial cylinders

417566, F04B 118, F04B 2102

Patent

active

043114377

ABSTRACT:
An annular elastic valve element is deformed under fluid pressure to control flow of fluid from a piston chamber to a pressure chamber of a piston pump by separation from the peripheral wall surface of a valve seat at a location through which a passage bore extends. The valve seat overlies the outer end of the piston and its peripheral wall has reduced diameter portions spaced from the bore to accommodate elastic deformation of the valve element.

REFERENCES:
patent: 1255710 (1961-01-01), Zimmermann
patent: 1265153 (1918-05-01), Winsor
patent: 1368315 (1921-02-01), Wygodsky
patent: 2472355 (1949-06-01), Wittingham
patent: 3729021 (1973-04-01), Humphrey
patent: 4194435 (1970-05-01), Gaun et al.
patent: 4214607 (1980-07-01), Bouteille

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