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Title:
REFRIGERANT COMPOSITION, WORKING MEDIUM FOR REFRIGERATION CYCLE, AND REFRIGERATION CYCLE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/067934
Kind Code:
A1
Abstract:
This refrigerant composition comprises trifluoroethylene (HFO-1123), difluoromethane (R32) and propane (R290). When the contents (% by mass) of trifluoroethylene, difluoromethane and propane are respectively expressed by x, y and z relative to the total amount of these components, in a ternary phase diagram in which the total amount of trifluoroethylene, difluoromethane and propane becomes 100% by mass, a coordinate (x,y,z) falls within a diagram surrounded by a line segment GH, a line segment HC, a line segment CD, a line segment DE and a line segment EG or is located on a line segment selected from a line segment DE, a line segment EG and a line segment GH (provided that a point D, a point E and point G are excluded), in which the points are as follows: point D (74.5,0.0,25.5), point E (62.0,12.4,25.6), point F (91.2, 0.0, 8.8), point G (86.9, 3.1, 10.0), and point H (0.0, 90.0, 10.0). The line segment DE is expressed by a coordinate (x, 0.0266x2-4.6248x+196.8859, -0.0266x2+3.6248x-96.8859). The line segment EF that connects the point E to the point F is expressed by a coordinate (0.1171z2-5.7627z+132.8115, -0.1171z2+4.7627z-32.8115, z).

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Inventors:
IITAKA SEISHI
HIWATA AKIRA
Application Number:
PCT/JP2022/033699
Publication Date:
April 27, 2023
Filing Date:
September 08, 2022
Export Citation:
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Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
C09K5/04; F25B1/00
Domestic Patent References:
WO2016194847A12016-12-08
WO2012157764A12012-11-22
WO2020071380A12020-04-09
WO2022075389A12022-04-14
WO2018047816A12018-03-15
Foreign References:
JP2018179404A2018-11-15
JP2018177967A2018-11-15
JP2017145380A2017-08-24
CN114106778A2022-03-01
JP2018104566A2018-07-05
JP2020193344A2020-12-03
JP2019034983A2019-03-07
JP2018048271A2018-03-29
Attorney, Agent or Firm:
ARCO PATENT & TRADEMARK ATTORNEYS (JP)
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