Rotary vane pump

Details Rotary vane pump Rotary vane pump

1986-01-27

1987-06-16

Vrablik, John J.

Rotary expansible chamber devices

Moving cylinder

Rotating

418185, 418187, F04C 246, F04C 1846

Patent

active

046733434

ABSTRACT:
A rotary vane pump comprising an inner rotor and an outer rotor which rotate together about eccentric axes. A pair of support shafts are attached to the inner rotor and are rotatably mounted for rotation of the inner rotor. At least one of the support shafts is hollow and serves as a fluid conduit. The outer rotor is rotatably mounted upon the support shafts. The outer rotor and the inner rotor are provided with ports at the ends thereof for flow of fluid into the inner rotor. The relative dimensions of the rotors is such that a chamber is formed between the rotors. A vane is attached to the outer rotor and slidably extends into a slot in the inner rotor. The vane divides the chamber into intake and outlet portions. Fluid flows from the inner rotor into the chamber between the rotors, and fluid flows from the chamber into fluid conduit formed by the hollow support shaft.

REFERENCES:
patent: 917944 (1909-04-01), Hoffman
patent: 983754 (1911-02-01), Nichols
patent: 1352107 (1920-09-01), Wagenhorst
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patent: 1719954 (1929-07-01), Wilson
patent: 1851193 (1932-03-01), Laraque
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patent: 2102346 (1937-12-01), Wishart
patent: 2246274 (1941-06-01), Davidson
patent: 2316318 (1943-04-01), Davidson
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patent: 2969743 (1961-01-01), Menon
patent: 3298331 (1967-01-01), Butler
patent: 3697203 (1972-10-01), Butler
patent: 4003682 (1977-01-01), Stein

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