Extractor pump for fluids under vacuum

Details Extractor pump for fluids under vacuum Extractor pump for fluids under vacuum

1978-05-08

1979-10-16

Krizmanich, George H.

Rotary kinetic fluid motors or pumps

Smooth runner surface for working fluid frictional contact

F01D 136

Patent

active

041711823

ABSTRACT:
A pump for extracting fluids from a vacuum enclosure with the pump including a housing having an impeller rotating therein in sealed relationship therewith. Fluid passes through a feed tube to the center of the impeller with a plurality of delivery channels extending radially of the impeller and being in fluid flow connection with the center of the impeller. The delivery channels are of assymetric U-shaped or analagous form within which, in use, the fluid forms a barrier between the high and low pressure environments.

REFERENCES:
patent: 2276824 (1942-03-01), Carruthers
patent: 3007311 (1961-11-01), Amero

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