Variable volume rotary vane pump-motor units

Details Variable volume rotary vane pump-motor units Variable volume rotary vane pump-motor units

1987-03-05

1988-12-20

Vrablik, John J.

Rotary expansible chamber devices

With changeable working chamber magnitude

Cylinder or cylinder portion moved linearly and radially

418148, 418268, F01C 1344, F01C 1904

Patent

active

047922958

ABSTRACT:
The invention comprises a variable volume rotary vane pump or motor having an improved sealing relationship between vanes radially extending from a rotor and the inner cylindrical surface of an outer sleeve. The improved sealing is performed by means of vane caps (seals) which are urged radially outward against the inner circumferential wall of the outer cylinder by fluid pressure.

REFERENCES:
patent: 993653 (1911-05-01), Coleman
patent: 1385880 (1921-07-01), Master
patent: 2311162 (1943-02-01), DuBois
patent: 3450108 (1969-06-01), Rich
patent: 3776203 (1973-12-01), Joyce, Sr.
patent: 4618318 (1986-10-01), Hansen

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