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Patent Searching and Data


Title:
SCREW COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2015/114846
Kind Code:
A1
Abstract:
A casing (2) comprises therein: a compression chamber (9); a suction chamber (11) through which a refrigerant to be sucked into the compression chamber (9) flows; a discharge chamber (10) through which a refrigerant having been discharged from the compression chamber (9) flows; and a tooth pressure chamber (12) which connects to the compression chamber (9) through a communication passage (13) and which has the same pressure as the compression chamber (9) during the operation of a screw compressor (1). After the stop of operation of the screw compressor (1), a refrigerant gas having a pressure higher than pressure in the compression chamber (9) is introduced from the tooth pressure chamber (12) into the compression chamber (9).

Inventors:
ITO TAKESHI (JP)
TSUKAMOTO KAZUYUKI (JP)
KAMIKAWA MASAAKI (JP)
KANDA MASAHIRO (JP)
Application Number:
PCT/JP2014/065912
Publication Date:
August 06, 2015
Filing Date:
June 16, 2014
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F04C18/52; F04C29/04
Foreign References:
JP2013113271A2013-06-10
JP2013253543A2013-12-19
JP2013136957A2013-07-11
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
Patent business corporation きさ patent trademark office (JP)
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