Vane pump

Details Vane pump Vane pump

1995-04-26

1997-12-30

Freay, Charles G.

Rotary expansible chamber devices

Working chamber surface expressed mathematically

418259, F04C 200

Patent

active

057022429

ABSTRACT:
A vane pump including a rotor, which is arranged within a cam ring located in the pump housing, and which carries a plurality of radially displaceable vanes which are also displaceable along the inner double-symmetrical contour of the cam ring, with the inner contour defining two diametrically opposite pump chambers and with each chamber being divided in three sections forming, respectively, a suction region, a pressure region, and a separation region between the suction and pressure regions.

REFERENCES:
patent: 2330565 (1943-09-01), Eckart
patent: 2791185 (1957-05-01), Bohnhoff et al.
patent: 4702684 (1987-10-01), Takao et al.
patent: 4738603 (1988-04-01), Hattori

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