Title:
REFRIGERANT-CONTAINING COMPOSITION, AND REFRIGERATING METHOD, REFRIGERATING DEVICE OPERATING METHOD, AND REFRIGERATING DEVICE USING SAID COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2020/162401
Kind Code:
A1
Abstract:
The present invention provides a composition containing a refrigerant that has characteristics of having a sufficiently low GWP and having a refrigeration capacity and a coefficient of performance (COP) equivalent to or better than those of R404A. Specifically, the present invention provides a composition containing a refrigerant that contains trans-1,2-difluoroethylene (HFO-1132(E)), 1,1,2-trifluoroethylene (HFO-1123), and 2,3,3,3-tetrafluoropropene (HFO-1234yf), wherein the total concentration of said three components is 99.5 mass% or more with respect to the total amount of the refrigerant, and, in a triangular compositional figure in which the three components represent respective vertices, the mass ratio of the three components is within the range of an area enclosed by a figure passing through five points, namely, point A (HFO-1132(E)/HFO-1123/HFO-1234yf = 42.5/1.0/56.5 mass%), point B (HFO-1132(E)/HFO-1123/HFO-1234yf = 27.1/1.0/71.9 mass%), point C (HFO-1132(E)/HFO-1123/HFO-1234yf = 1.0/30.4/68.6 mass%), point D (HFO-1132(E)/HFO-1123/HFO-1234yf = 1.0/57.0/42.0 mass%), and point E (HFO-1132(E)/HFO-1123/HFO-1234yf = 42.5/24.1/33.4 mass%).
Inventors:
OHKUBO SHUN (JP)
ITANO MITSUSHI (JP)
YOTSUMOTO YUUKI (JP)
MIZUNO AKIHITO (JP)
GOTOU TOMOYUKI (JP)
YAMADA YASUFU (JP)
ITANO MITSUSHI (JP)
YOTSUMOTO YUUKI (JP)
MIZUNO AKIHITO (JP)
GOTOU TOMOYUKI (JP)
YAMADA YASUFU (JP)
Application Number:
PCT/JP2020/003943
Publication Date:
August 13, 2020
Filing Date:
February 03, 2020
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
F25B1/00; C09K5/04
Domestic Patent References:
| WO2014178352A1 | 2014-11-06 | |||
| WO2017122517A1 | 2017-07-20 | |||
| WO2020017522A1 | 2020-01-23 | |||
| WO2020017521A1 | 2020-01-23 | |||
| WO2020017520A1 | 2020-01-23 | |||
| WO2019123782A1 | 2019-06-27 | |||
| WO2010059677A2 | 2010-05-27 | |||
| WO2011163117A1 | 2011-12-29 |
Other References:
See also references of EP 3922922A4
Attorney, Agent or Firm:
SAEGUSA & PARTNERS (JP)
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