Piston pump, especially radial piston pump

Details Piston pump, especially radial piston pump Piston pump, especially radial piston pump

1979-10-30

1982-06-01

Freeh, William L.

Pumps

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

Radial cylinders

417313, F04B 118

Patent

active

043325327

ABSTRACT:
A plural piston pump is provided wherein the pistons are carried in bores in a body or hub on a radial plane surrounding an actuating cam and wherein a common pulsator chamber is provided comprised of axial recesses in the hub intermediate the pistons communicates with an annular channel in the hub. The arrangement provides a compact form of pump consisting essentially of a hub member externally sealed in a cylindrical housing open at its ends. The hub is provided with inlet and outlet ports, thus eliminating the need for housing ports and housing end pieces or closures and a relatively large pressure or pulsator chamber volume is formed for smoothing out pump pulsations.

REFERENCES:
patent: 603805 (1898-05-01), Wood
patent: 1320792 (1919-11-01), Noguera
patent: 2472355 (1949-06-01), Whittingham
patent: 2679808 (1954-06-01), Thun
patent: 3021995 (1962-02-01), Neubauer
patent: 3191544 (1965-06-01), Szekely
patent: 3712759 (1973-01-01), Olson
patent: 3785751 (1974-01-01), Nemoto
patent: 3981629 (1976-09-01), Nakayama

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