Two-stage liquid ring pump

Details Two-stage liquid ring pump Two-stage liquid ring pump

1988-03-24

1989-01-03

Neils, Paul F.

Pumps

One fluid pumped by contact or entrainment with another

Contact or entrainment within rotary impeller

417244, F04C 1900

Patent

active

047953152

ABSTRACT:
A liquid ring gas pump having two axially adjacent, serially connected stages. Gas to be compressed is admitted to the first stage of the pump solely via a first stage inlet opening at the end of the first stage remote from the second stage. The sole outlet for gas to leave the first stage in order to flow to the second stage is a first stage outlet at the end of the first stage adjacent to the second stage. A residual gas outlet is provided at the end of the first stage remote from the second stage for allowing compressed gas that is unable to exit via the first stage outlet to exit via the residual gas outlet and re-enter the first stage via a residual gas inlet also provided at the end of the first stage remote from the second stage and located after the first stage inlet but before the first stage outlet in the direction of rotor rotation.

REFERENCES:
patent: 1322363 (1919-11-01), Siemen et al.
patent: 1656728 (1928-01-01), De Lony
patent: 2136527 (1938-11-01), Stelzer
patent: 2195174 (1940-03-01), Jennings
patent: 4132504 (1979-01-01), Fitch
patent: 4334830 (1982-06-01), Haavik
patent: 4679987 (1987-07-01), Olsen
patent: 4685865 (1987-08-01), Auschrat

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