Dual radial piston pump or motor

Details Dual radial piston pump or motor Dual radial piston pump or motor

1975-10-14

1977-12-27

Freeh, William L.

Motors: expansible chamber type

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

Radially disposed cylinders

F01B 1304

Patent

active

040647900

ABSTRACT:
A radial piston pump comprises a housing having a drive shaft rotatably mounted therein and a pair of longitudinally spaced pumps each having a rotor thereof operatively connected to the shaft for rotation therewith. Each pump further comprises a pintle valve mounted in the housing and having a respective rotor rotatably mounted thereon for communicating fluid from an inlet of the housing to an outlet thereof. Each pump further comprises a plurality of circumferentially spaced and radially extending pistons secured thereon with each of the pistons having a cylinder reciprocally mounted on an end thereof for pumping fluid from the inlet to the outlet upon rotation of the rotor which is mounted in eccentric relationship relative to a chamber formed in the housing.

REFERENCES:
patent: 2186556 (1940-01-01), Robbins
patent: 2844104 (1958-07-01), Wennberg
patent: 3225701 (1965-12-01), Griffith
patent: 3274946 (1966-09-01), Simmons
patent: 3742818 (1973-07-01), Engel

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