Reversible unidirectional flow pump with frictionally engaged ax

Details Reversible unidirectional flow pump with frictionally engaged ax Reversible unidirectional flow pump with frictionally engaged ax

1980-05-15

1982-05-25

Vrablik, John J.

Rotary expansible chamber devices

Self-acting unidirectional flow with reverse rotation or...

F04C 1502

Patent

active

043314201

ABSTRACT:
A reversible positive displacement rotary fluid pump comprising a rotor with dual sliding vanes defining pumping cavities of increasing and decreasing volume and having a single non-valved inlet for both directions of rotation, outlet flow being controlled by a valve plate rotatable to one of two positions, as determined by the direction of rotation of the pump, and a stationary porting plate.

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patent: 3418939 (1968-12-01), Kopp
patent: 3478693 (1969-11-01), Bangs
patent: 3985473 (1976-10-01), King et al.

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