US 12,241,014 B2
Composition containing refrigerant, use of same, refrigerator comprising same, and method for operating said refrigerator
Mitsushi Itano, Osaka (JP); Shun Ohkubo, Osaka (JP); and Daisuke Karube, Osaka (JP)
Assigned to DAIKIN INDUSTRIES, LTD., Osaka (JP)
Filed by DAIKIN INDUSTRIES, LTD., Osaka (JP)
Filed on Dec. 15, 2021, as Appl. No. 17/551,792.
Application 17/551,792 is a continuation of application No. PCT/JP2020/024152, filed on Jun. 19, 2020.
Claims priority of application No. 2019-114162 (JP), filed on Jun. 19, 2019.
Prior Publication US 2022/0106511 A1, Apr. 7, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. C09K 5/04 (2006.01)
CPC C09K 5/045 (2013.01) 6 Claims
OG exemplary drawing
 
1. A composition comprising a refrigerant, the refrigerant comprising trans-1,2-difluoroethylene (HFO-1132(E)), trifluoroethylene (HFO-1123), and 1,3,3,3-tetrafluoropropene (R1234ze),
wherein
when the mass % of HFO-1132(E), HFO-1123, and R1234ze based on their sum in the refrigerant is respectively x, y, and z, coordinates (x,y,z) in a ternary composition diagram in which the sum of HFO-1132(E), HFO-1123, and R1234ze is 100 mass % fall within a figure surrounded by line segments EJ, JC, CD, DF, and FE, which connect the following 5 points, or fall on any of line segments EJ, CD, and FE, but not fall on point J, point C, point D, or point F:
point E (42.5, 27.9, 29.6),
point J (42.5, 1.0, 56.5),
point C (39.1, 1.0, 59.9),
point D (1.0, 44.4, 54.6), and
point F (1.0, 64.0, 35.0),
line segments EJ, JC, and DF are straight lines,
coordinates (x,y,z) of a point on line segment CD are represented by (x, 0.0021x2−1.2228x+45.621, −0.0021x2+0.2228x+54.379), and
coordinates (x,y,z) of a point on line segment FE are represented by (x, 0.0025x2−0.979x+64.976, −0.0025x2−0.021x+35.024).