Rotary pump

Details Rotary pump Rotary pump

1982-06-21

1984-02-14

Vrablik, John J.

Rotary expansible chamber devices

Moving cylinder

Rotating

F04C 200

Patent

active

044313918

ABSTRACT:
A rotary pump including a circular case, and mating cover forming a cylindrical cavity, an outer ring sized for rotating within the case cavity, a partial inner ring sized for relative rotation within the outer ring, and a driven elongated blade pivotally interlocked at one end to the inner ring. The other end of the blade is held for pivotal and sliding movement to the outer ring by a mating knuckle which slidably receives the blade end while being pivotably locked into the ring. The axis of the drive shaft which rotates the blade is positioned off-center from that of the concentric sealing rings and case. Fluid entrance and exhaust ports may be provided in either or both the case and mating cover. 7

REFERENCES:
patent: 219365 (1879-09-01), Pernot
patent: 1806206 (1931-05-01), Lees
patent: 2316318 (1943-04-01), Davidson

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