Rotary impeller pump or motor with counterbalancing chamber in t

Details Rotary impeller pump or motor with counterbalancing chamber in t Rotary impeller pump or motor with counterbalancing chamber in t

1980-01-29

1982-06-29

Vrablik, John J.

Rotary expansible chamber devices

With mechanical sealing

Axially movable end wall or end wall portion

F03C 208, F04C 218, F04C 1500

Patent

active

043370187

ABSTRACT:
A rotary impeller pump or motor is provided having a case, a pair of rotary impellers in said case, a plate having a first face divided by lands into a plurality of chambers against corresponding ends of the impellers and a second face having two counterbores around the rotary impellers, annular seal means intermediate the ends of each counterbore forming a pair of chambers within the counterbore, opposed inlet and outlet ports in said case whereby said plate is balanced in pressure on opposite sides by fluid in said chambers on the first face and the counterbores.

REFERENCES:
patent: 2870720 (1959-01-01), Lorenz
patent: 3063378 (1962-11-01), Hart
patent: 3309997 (1967-03-01), Kita
patent: 3313238 (1967-04-01), Muller et al.
patent: 3481275 (1969-12-01), Gelin
patent: 3778200 (1973-12-01), Wellman

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