Rotary pump

Details Rotary pump Rotary pump

1986-09-08

1988-09-20

Freeh, William L.

Rotary expansible chamber devices

With removal or accommodation of solid foreign material in...

418178, 418191, 418227, 418152, F04C 1811, F01C 2100

Patent

active

047721871

ABSTRACT:
A single rotary pump is provided with a driven valve having outer curved faces and inner curved recesses along the major axis thereof, a rotary piston having vanes between which there are semi-ellipses having raised portions therebetween, said valve being driven by an external source to cause rotation of said piston whereby liquid under pressure flows from an inlet of the pump to an outlet of the pump.

REFERENCES:
patent: 1224567 (1917-05-01), Ragan
patent: 1704938 (1929-03-01), Gardes
patent: 2786332 (1957-03-01), Taverniers
patent: 3117562 (1964-01-01), Hajet
patent: 3289649 (1966-12-01), Lamm
patent: 3366096 (1968-01-01), Mathews
patent: 3453992 (1969-07-01), Graham
patent: 3612735 (1971-10-01), Graham
patent: 3621820 (1971-11-01), Newsom
patent: 3622256 (1971-11-01), Borisoglebsky
patent: 3989413 (1976-11-01), McGahan
patent: 4086880 (1978-05-01), Bates
patent: 4490102 (1984-12-01), Carre

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