Reversible vane pump with two piece rotor assembly

Details Reversible vane pump with two piece rotor assembly Reversible vane pump with two piece rotor assembly

1990-05-29

1992-10-06

Vrablik, John J.

Rotary expansible chamber devices

With delayed load

418110, F04C 18344, F04C 2700

Patent

active

051526816

ABSTRACT:
A high pressure vane pump has a two-piece rotor enclosed by a housing having an inlet and an outlet and an eccentric ring for controlling the reciprocation of vanes in a guide part of the rotor; the eccentric ring is closed by opposite end plates and a moveable crown part of the rotor is supported on the guide part to provide four degrees of freedom between the guide part and the crown part including movement of the crown part axially of the guide part; movement of the crown part clockwise and counterclockwise of the guide part; and yaw movement of the crown part with respect to the vertical axis of the guide part. Rotation of the rotor causes the crown part to be shifted axially of the guide part to increase the pressure output of the pump at high speed operation and to reduce the frictional losses between the rotor and the housing during start-up.

REFERENCES:
patent: 722480 (1903-03-01), Bergmann
patent: 1020842 (1912-03-01), Ogden
patent: 1528075 (1925-03-01), Richer
patent: 1582922 (1926-05-01), Freud
patent: 1972744 (1934-09-01), Lister
patent: 3995976 (1976-12-01), Ishizuka

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