- Patent Title: Composition containing refrigerant comprising R32, R125, R143A, R1234YF and R134A, and refrigeration method, refrigerator operating method and refrigerator using said composition
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Application No.: US17047913Application Date: 2019-04-18
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Publication No.: US11952529B2Publication Date: 2024-04-09
- Inventor: Mitsushi Itano , Hitomi Kuroki , Shun Ohkubo , Tatsumi Tsuchiya , Kenji Gobou
- Applicant: DAIKIN INDUSTRIES, LTD.
- Applicant Address: JP Osaka
- Assignee: DAIKIN INDUSTRIES, LTD.
- Current Assignee: DAIKIN INDUSTRIES, LTD.
- Current Assignee Address: JP Osaka
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Priority: JP 18080117 2018.04.18
- International Application: PCT/JP2019/016710 2019.04.18
- International Announcement: WO2019/203328A 2019.10.24
- Date entered country: 2020-10-15
- Main IPC: F25B41/00
- IPC: F25B41/00 ; C09K5/04
Abstract:
The present invention provides a refrigerant-containing composition by using a refrigerant that has a refrigerating capacity equivalent to that of widely used R404A, and a low GWP. Specifically, the present invention provides a composition that contains a refrigerant containing difluoromethane (R32), pentafluoroethane (R125), 1,1,1-trifluoroethane (R143a), 2,3,3,3-tetrafluropropene (R1234yf), and 1,1,1,2-tetrafluoroethane (R134a) in specific concentrations.
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