Rotary vane pump with floating rotor side plates

Details Rotary vane pump with floating rotor side plates Rotary vane pump with floating rotor side plates

1987-03-13

1989-02-14

Vrablik, John J.

Rotary expansible chamber devices

With mechanical sealing

By axially relatively moving working member sections

418133, 418152, 418178, 418179, F04C 18344, F04C 2500, F04C 2900

Patent

active

048043176

ABSTRACT:
A rotary vane pump having a metallic rotor, rotatably positioned within an ellipsoidal cavity, a pair of stationary wear plates on the sides of the cavity, the rotor having a plurality of radial slots each of which contain a carbon composite vane riding against the ellipsoidal cavity in reciprocal motion to define variable volume pumping chambers and a pair of carbon composite rotor side plates each being positioned between one side of the rotor and the stationary wear plates, each of the rotor side plates having a similar pattern of congruent radial slots to that of the rotor, the vanes having sufficient width to extend into the slots of both side plates to drive the side plates with the rotor during operating.

REFERENCES:
patent: 1321340 (1919-11-01), Stoke
patent: 2195812 (1940-04-01), Czarnecki
patent: 2616615 (1952-11-01), Scott
patent: 3433166 (1969-03-01), Birkemeier
patent: 3552895 (1971-01-01), Bayley
patent: 3640648 (1972-02-01), Odawara
patent: 3695789 (1972-10-01), Jansson
patent: 4198195 (1980-04-01), Sakamaki et al.
patent: 4545749 (1985-10-01), Sakamaki et al.
patent: 4615663 (1986-10-01), Iio et al.

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