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Title:
REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/024380
Kind Code:
A1
Abstract:
A refrigeration cycle device according to the present invention includes a refrigerant circuit in which a compressor, a condenser, an expansion device, and an evaporator are connected in a circle, wherein: a refrigerant sealed in the refrigerant circuit is carbon dioxide or a mixed refrigerant containing carbon dioxide; a refrigerator oil used in the compressor fuses with the refrigerant to the saturation point; the main constituent of the refrigerator oil is at least one of polyol ester and polyvinyl ether; the pour point of the refrigerator oil in the atmosphere is -35ºC to -57ºC; and an extreme pressure agent contained in the refrigerator oil is at least one of tricresyl phosphate and triphenyl phosphate.

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Inventors:
KOYAMA SHUHEI (JP)
MORISHITA TAKUMI (JP)
YANO KENJI (JP)
Application Number:
PCT/JP2019/030907
Publication Date:
February 11, 2021
Filing Date:
August 06, 2019
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B1/00; C09K5/04; C10M105/38; C10M107/24; C10M137/04; C10M169/04; F25B1/04
Domestic Patent References:
WO2007029746A12007-03-15
WO2014156743A12014-10-02
Foreign References:
JP2007169396A2007-07-05
JP2009222358A2009-10-01
JP2014129900A2014-07-10
JPH07269475A1995-10-17
JP2011075178A2011-04-14
JP2001304153A2001-10-31
JPH10259962A1998-09-29
JP2002155290A2002-05-28
JP2009138037A2009-06-25
JP2012052135A2012-03-15
JP2001294886A2001-10-23
JPH10267437A1998-10-09
US20150226464A12015-08-13
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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