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Title:
COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2015/129169
Kind Code:
A1
Abstract:
　A compressor is provided with compression-chamber-forming members (11, 12) for forming a compression chamber (Vc) that reduces capacity while being displaced around a rotating shaft (25), and an intermediate pressure intake port (30b) for causing the flow of intermediate-pressure fluid drawn in from the exterior to merge with fluid in the compression process in the compression chamber (Vc). The compressor is further provided with a backflow-preventing section (50) for preventing fluid from flowing back from the compression chamber (Vc) toward the intermediate pressure intake port (30b). A downstream-side fluid passage (51) leading from the backflow-preventing section (50) to the compression chamber (Vc) is formed having at least a directional component extending in the direction opposite the rotational direction of the rotating shaft (25). The region (wall surface) forming the compression chamber (Vc) on the intake side of the compression-chamber-forming member (12) is cooled by the intermediate-pressure refrigerant flowing through the downstream-side refrigerant passage (51), and the heat of a high-pressure refrigerant inside the compression chamber (Vc) on the discharge side is suppressed from being transferred to a refrigerant flowing into the compression chamber (Vc) on the intake side via the compression-chamber-forming member (12).

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Inventors:
INOUE MASASHI (JP)
KOMURA MASATO (JP)
EBARA TOSHIYUKI (JP)
INOUE TAKASHI (JP)
Application Number:
PCT/JP2015/000552
Publication Date:
September 03, 2015
Filing Date:
February 06, 2015
Export Citation:
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Assignee:
DENSO CORP (JP)
NIPPON SOKEN (JP)
International Classes:
F04C18/02; F04C29/04
Foreign References:
US3105633A1963-10-01
JPS62173585U1987-11-04
JP2013209954A2013-10-10
JP2007064005A2007-03-15
JPH05195974A1993-08-06
JPS5332412A1978-03-27
JP2012219791A2012-11-12
JPS63177687U1988-11-17
JPS57153984A1982-09-22
JP2011163326A2011-08-25
Attorney, Agent or Firm:
KIN, Junhi (JP)
Gold Junki (JP)
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