Two stage liquid ring pump

Details Two stage liquid ring pump Two stage liquid ring pump

1980-01-25

1982-04-06

Croyle, Carlton R.

Pumps

One fluid pumped by contact or entrainment with another

Contact or entrainment within rotary impeller

417244, F04C 1900

Patent

active

043233341

ABSTRACT:
Discharge or unloading orifices are provided in both stages of the two stage pump to bleed seal liquid under various vacuum conditions and to render the pump immune to the effects of variation in rotor speed and in the delivery rate of seal liquid.

REFERENCES:
patent: 3108738 (1963-10-01), Luhmann
patent: 3217975 (1965-11-01), Jennings
patent: 3366314 (1968-01-01), Schroder
patent: 3721508 (1973-03-01), Mugele
patent: 4083658 (1978-04-01), Ramm
patent: 4132504 (1979-01-01), Fitch

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