Inside air-conditioning device
AssigneeDaikin Industries, Ltd.
InventorsMakoto Ikemiya, Shinichi Fujinaka, Masaru Tanaka, Shun Ohkubo, Yuuki Yotsumoto, Mitsushi Itano, Akihito Mizuno, Tomoyuki Gotou, Yasufu Yamada
Life of this patent
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Abstract
An inside air-conditioning device includes a refrigerant circuit (50) and a refrigerant that is sealed in the refrigerant circuit (50). The refrigerant circuit (50) includes a compressor (10), a condenser (25), an electronic expansion valve (13), and an evaporator (17). The refrigerant contains at least 1,2-difluoroethylene.
Claims21
An inside air-conditioning device comprising:
- a refrigerant circuit comprising a compressor, a condenser, a decompressor, and an evaporator;
- and
- a refrigerant that is sealed in the refrigerant circuit, wherein the refrigerant contains trans-1,2-difluoroethylene (HFO-1132(E)) and 2,3,3,3-tetrafluoropropene (HFO-1234yf) in such amounts that the sum of HFO-1132(E) and HFO-1234yf is 99.5 mass % or more, wherein
- the refrigerant contains 35.0 to 65.0 mass % of HFO-1132(E) and 65.0 to 35.0 mass % of HFO-1234yf, based on a total mass of HFO-1132(E) and HFO-1234yf, and
- the refrigerant is used for operating a refrigeration cycle in which an evaporating temperature is −75 to −5° C.
An inside air-conditioning device comprising:
- a refrigerant circuit comprising a compressor, a condenser, a decompressor, and an evaporator;
- and
- a refrigerant that is sealed in the refrigerant circuit, wherein the refrigerant contains trans-1,2-difluoroethylene (HFO-1132(E)) and 2,3,3,3-tetrafluoropropene (HFO-1234yf) in such amounts that the sum of HFO-1132(E) and HFO-1234yf is 99.5 mass % or more, wherein
- the refrigerant contains 40.5 to 49.2 mass % of HFO-1132(E) and 59.5 to 50.8 mass % of HFO-1234yf, based on a total mass of HFO-1132(E) and HFO-1234yf.
An inside air-conditioning device comprising:
- a refrigerant circuit comprising a compressor, a condenser, a decompressor, and an evaporator;
- and
- a refrigerant that is sealed in the refrigerant circuit, wherein the refrigerant contains trans-1,2-difluoroethylene (HFO-1132(E)) and 2,3,3,3-tetrafluoropropene (HFO-1234yf) in such amounts that the sum of HFO-1132(E) and HFO-1234yf is 99.5 mass % or more, wherein
- the refrigerant contains 31.1 to 39.8 mass % of HFO-1132(E) and 68.9 to 60.2 mass % of HFO-1234yf, based on a total mass of HFO-1132(E) and HFO-1234yf.
An inside air-conditioning device comprising:
- a refrigerant circuit comprising a compressor, a condenser, a decompressor, and an evaporator;
- and
- a refrigerant that is sealed in the refrigerant circuit, wherein the refrigerant contains trans-1,2-difluoroethylene (HFO-1132(E)) and 2,3,3,3-tetrafluoropropene (HFO-1234yf) in such amounts that the sum of HFO-1132(E) and HFO-1234yf is 99.5 mass % or more, wherein
- the refrigerant contains 21.0 to 28.4 mass % of HFO-1132(E) and 79.0 to 71.6 mass % of HFO-1234yf, based on a total mass of HFO-1132(E) and HFO-1234yf.
An inside air-conditioning device comprising:
- a refrigerant circuit comprising a compressor, a condenser, a decompressor, and an evaporator;
- and
- a refrigerant that is sealed in the refrigerant circuit, wherein the refrigerant contains trans-1,2-difluoroethylene (HFO-1132(E)) and 2,3,3,3-tetrafluoropropene (HFO-1234yf) in such amounts that the sum of HFO-1132(E) and HFO-1234yf is 99.7 mass % or more, wherein
- the refrigerant contains 12.1 to 45.0 mass % of HFO-1132(E) and 87.9 to 55.0 mass % of HFO-1234yf, based on a total mass of HFO-1132(E) and HFO-1234yf.
Dependencies are inferred from the claim text.