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1.发明公开公开(公告)号：US20230203356A1
公开(公告)日：2023-06-29
申请号：US18115915
申请日：2023-03-01
Applicant: DAIKIN INDUSTRIES, LTD.
Inventor： Yuka WATANABE , Tomoyuki GOTOU , Yuuko ITOU , Takashi USUI , Takashi YOSHIMURA
IPC: C09K5/04
CPC classification number: C09K5/045 , C09K2205/126
Abstract: The propagation of a disproportionation reaction of a refrigerant is suppressed. Disclosed is a method that uses a composition as a refrigerant in a refrigerant circuit, in which the composition includes one or more compounds selected from the group consisting of ethylene-based fluoroolefins, 2,3,3,3-tetrafluoropropene, and 1,3,3,3-tetrafluoropropene, and the refrigerant circuit includes a compressor, a four-way switching valve, and a first refrigerant pipe connecting the compressor and the four-way switching valve, the first refrigerant pipe having a pipe diameter less than or equal to ⅜ inch or a length greater than or equal to 5 cm.
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Patent Agency Ranking
公开(公告)号：US20230203357A1
公开(公告)日：2023-06-29
申请号：US18117189
申请日：2023-03-03
Applicant: DAIKIN INDUSTRIES, LTD.
Inventor： Yuka WATANABE , Tomoyuki GOTOU , Yuuko ITOU , Takashi USUI , Takashi YOSHIMURA
IPC: C09K5/04
CPC classification number: C09K5/045 , C09K2205/126 , C09K2205/22
Abstract: A pressure increase in a compressor is suppressed. Disclosed is a method that uses a composition as a refrigerant in a refrigerant circuit, in which the composition includes one or more compounds selected from the group consisting of ethylene-based fluoroolefins, 2,3,3,3-tetrafluoropropene, and 1,3,3,3-tetrafluoropropene, and in the refrigerant circuit, the total internal volume of a refrigerant pipe and a component that are connected to a compressor is greater than or equal to 0.7 times the internal volume of the compressor.
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3.发明公开公开(公告)号：US20230416580A1
公开(公告)日：2023-12-28
申请号：US18238145
申请日：2023-08-25
Applicant: DAIKIN INDUSTRIES, LTD.
Inventor： Yuuko ITOU , Tomoyuki GOTO , Takashi YOSHIMURA , Takashi USUI
CPC classification number: C09K5/045 , F04C2/3564 , C09K2205/126 , F04C2240/803 , F04C2210/263 , F25B31/026
Abstract: Damages to a refrigerant circuit of a refrigeration cycle apparatus due to a disproportionation reaction are suppressed. The use of a composition as a refrigerant in a compressor is use of, as a refrigerant, a composition containing one or two or more compounds selected from a group consisting of ethylene-based fluoroolefin, 2,3,3,3-Tetrafluoropropene (HFO-1234yf), and 1,3,3,3-Tetrafluoropropene (HFO-1234ze) in a compressor that includes a terminal (200) including a terminal pin (220) and a body (210) to which the terminal pin (220) is fixed, and the terminal pin (220) is fixed to the body (210) with a fixing adhesive (240) having a melting point or a softening point of 1000° C. or less.
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4.发明公开公开(公告)号：US20230159810A1
公开(公告)日：2023-05-25
申请号：US18095595
申请日：2023-01-11
Applicant: DAIKIN INDUSTRIES, LTD.
Inventor： Takashi USUI , Tomoyuki GOTOU , Takashi YOSHIMURA , Yuuko ITOU , Yuka WATANABE , Takuma IWASAKA , Youhei TAKAKURA , Yuuki YOTSUMOTO
IPC: C09K5/04
CPC classification number: C09K5/045 , C09K2205/126
Abstract: The propagation of a disproportionation reaction of a refrigerant is suppressed. Disclosed is a method of using a composition as a refrigerant in a compressor, in which the composition includes one or more compounds selected from the group of ethylene-based fluoroolefins, 2,3,3,3-tetrafluoropropene, and 1,3,3,3-tetrafluoropropene, and the dimension of a gap of a predetermined portion through which the refrigerant flows around an ignition energy generation portion in the compressor is less than or equal to 2 mm.
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5.发明公开公开(公告)号：US20230146651A1
公开(公告)日：2023-05-11
申请号：US18091670
申请日：2022-12-30
Applicant: DAIKIN INDUSTRIES, LTD.
Inventor： Tomoyuki GOTOU , Takashi YOSHIMURA , Takashi USUI , Yuuko ITOU , Yuka WATANABE , Takuma IWASAKA , Youhei TAKAKURA , Yuuki YOTSUMOTO , Satoshi TOKUNO , Ryohei DEGUCHI
CPC classification number: C09K5/045 , F25B1/00 , C09K2205/22 , C09K2205/126
Abstract: The propagation of a disproportionation reaction of a refrigerant is suppressed. Disclosed is a method that uses a composition as a refrigerant in a compressor, in which the composition includes one or more compounds selected from the group of ethylene-based fluoroolefins, 2,3,3,3-tetrafluoropropene, and 1,3,3,3-tetrafluoropropene, and the flow rate of the refrigerant flowing through a region around an ignition energy generation portion in the compressor under a predetermined high-pressure condition is greater than or equal to 1 m/s.
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6.发明申请公开(公告)号：US20230139313A1
公开(公告)日：2023-05-04
申请号：US18091038
申请日：2022-12-29
Applicant: DAIKIN INDUSTRIES, LTD.
Inventor： Tomoyuki GOTOU , Takashi YOSHIMURA , Takashi USUI , Yuuko ITOU , Yuka WATANABE , Takuma IWASAKA , Youhei TAKAKURA , Yuuki YOTSUMOTO , Satoshi TOKUNO , Ryohei DEGUCHI
Abstract: The propagation of a disproportionation reaction of a refrigerant is suppressed. Disclosed is a method that uses a composition as a refrigerant in a compressor, in which the composition includes one or more compounds selected from the group of ethylene-based fluoroolefins, 2,3,3,3-tetrafluoropropene, and 1,3,3,3-tetrafluoropropene, and the flow rate of the refrigerant flowing through a discharge pipe of the compressor under a predetermined high-pressure condition is greater than or equal to 1 m/s.
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