Oil-cooled compressor

Details Oil-cooled compressor Oil-cooled compressor

2006-08-22

2006-08-22

Kim, Tae Jun (Department: 3746)

Pumps

With signal, indicator, or inspection means

C417S139000, C417S412000, C417S313000, C417S228000

Reexamination Certificate

active

07094037

ABSTRACT:
An oil-cooled screw compressor which can maintain the discharge temperature of discharge gas at an appropriate level is provided. The oil-cooled screw compressor comprises a compressor body, an oil separation/recovery unit disposed in a discharge path extending from a discharge port of the compressor body, and an oil feed path extending from the oil separation/recovery unit and communicating with the compressor body12. The oil feed path is branched at an intermediate position thereof into a first feed path portion and a second feed path portion. An opening/closing valve is disposed in the first feed path portion, a pressure gauge is disposed in the discharge path, and a control unit is provided to control opening and closing of the opening/closing valve on the basis of a correlation between a discharge pressure detected by the pressure gauge and a predetermined pressure.

REFERENCES:
patent: 4054401 (1977-10-01), Andriulis
patent: 4336001 (1982-06-01), Andrew et al.
patent: 4526523 (1985-07-01), Parker
patent: 5310020 (1994-05-01), Martin et al.
patent: 5522233 (1996-06-01), Nares et al.
patent: 5626470 (1997-05-01), Gerhardt
patent: 4-128585 (1992-04-01), None
patent: 8-4679 (1996-01-01), None

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