Liquid-ring compressor

Details Liquid-ring compressor Liquid-ring compressor

1990-05-22

1991-12-17

Bertsch, Richard A.

Pumps

One fluid pumped by contact or entrainment with another

Contact or entrainment within rotary impeller

417 69, F04C 1900

Patent

active

050730894

ABSTRACT:
In a liquid-ring rotary compressor having a control element with a suction port, a pressure orifice, and a plurality of supplementary ports in front of the pressure orifice with respect to the direction of rotation of the compressor impeller, each supplementary port having a back-pressure valve, pressure losses are reduced by decreasing the flow area of the supplementary ports toward the pressure orifice so that the total flow area for the supplementary ports that are exposed by the back-pressure valves during the compression operation is roughly proportional, with respect to the prevailing nominal pressure condition of the compressor, to the gas mass existing in the vane chambers. Embodiments for flat and conical control elements is disclosed.

REFERENCES:
patent: 1180613 (1916-04-01), Siemen
patent: 4392783 (1983-07-01), Jozepaitis
patent: 4521161 (1985-06-01), Olsen
patent: 4522560 (1985-06-01), Lubke
patent: 4551070 (1985-11-01), Olsen et al.
patent: 4850808 (1989-07-01), Schultze et al.

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