Radial piston pump

Details Radial piston pump Radial piston pump

1979-04-16

1981-03-24

Freeh, William L.

Pumps

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

Condition responsive fluid control

F04B 118

Patent

active

042577500

ABSTRACT:
The radial pump preferably for use in connection with a hydraulic clamping device includes a plurality of pumping elements enclosed in a housing and cooperating with a corresponding pluraity of discharge valves. A multiway control valve controls the delivery of pressure fluid to a load port in such a manner that during the actuation of the load the outlet of all discharge valves are united to deliver the entire flow of pressure fluid into the load port, whereas when the load is maintained under a constant pressure, only one pumping element delivers discharged fluid via a single discharge valve into the load port and the remaining pumping elements deliver their output into the reservoir.

REFERENCES:
patent: 2450248 (1948-09-01), Morgan
patent: 2820415 (1958-01-01), Born
patent: 2948222 (1960-08-01), Pine
patent: 3682565 (1972-08-01), Yarger
patent: 3776665 (1973-12-01), Dalton

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