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    FLUOROPOLYMER AND MANUFACTURING METHOD THEREFOR
    153.
    发明公开
    FLUOROPOLYMER AND MANUFACTURING METHOD THEREFOR 审中-公开

    公开(公告)号：US20230279161A1

    公开(公告)日：2023-09-07

    申请号：US18317531

    申请日：2023-05-15

    申请人： DAIKIN INDUSTRIES, LTD.

    发明人： Masahiro Higashi ,  Kensuke Yamato ,  Sumi Ishihara ,  Kanako Nakanishi ,  Yosuke Kishikawa ,  Hirokazu Aoyama

    IPC分类号： C08F16/24 ,  C09D129/10

    CPC分类号： C08F16/24 ,  C09D129/10

    摘要： Provided is a fluoropolymer of a monomer (I) represented by the following general formula (I), wherein a content of a polymerization unit (I) derived from the monomer (I) is 40 mol % or more based on the entirety of polymerization units constituting the fluoropolymer, and the fluoropolymer has a weight average molecular weight (Mw) of 1.4×104 or more:


    CX2═CX—O—Rf-A  General formula (I)

    wherein X is independently F or CF3; Rf is a fluorine-containing alkylene group having 1 to 40 carbon atoms or a fluorine-containing alkylene group having 2 to 100 carbon atoms and having an ether bond or a keto group; and A is —COOM, —SO3M, —OSO3M, or —C(CF3)2OM, wherein M is —H, a metal atom, —NR74, imidazolium optionally having a substituent, pyridinium optionally having a substituent, or phosphonium optionally having a substituent, and R7 is H or an organic group.

    COMPRESSION APPARATUS
    154.
    发明公开
    COMPRESSION APPARATUS 审中-公开

    公开(公告)号：US20230272951A1

    公开(公告)日：2023-08-31

    申请号：US18246747

    申请日：2021-08-06

    申请人： DAIKIN INDUSTRIES, LTD.

    发明人： Masaki YAMAGUCHI

    IPC分类号： F25B43/02 ,  F25B1/10 ,  F25B31/00

    CPC分类号： F25B43/02 ,  F25B1/10 ,  F25B31/002 ,  F25B2500/16 ,  F25B2600/022 ,  F25B2600/0253 ,  F25B2700/03

    摘要： A technique that allows a plurality of series-connected compressors in a refrigerant circuit to have equal amounts of oil in a more versatile manner is provided. A compression apparatus according to an embodiment in the disclosure includes series-connected compressors 10, 20 in a refrigerant circuit 1 that is to circulate a refrigerant; an oil separator 30 is provided in a discharge passage 50 of the compressor 10 of the compressors 10, 20, and separates oil from the refrigerant discharged from the compressor 10 and causes the refrigerant separated from the oil to flow downstream (intake passage 80); an oil return passage 70 returns the oil separated by the oil separator 30 to the compressor 10 neighboring upstream; an oil discharge outlet 10A is provided in the compressor 10; and an oil discharge passage 60 connects the oil discharge outlet 10A to an inlet of the oil separator 30.

    AIR CONDITIONER UNIT AND AIR CONDITIONER
    155.
    发明公开
    AIR CONDITIONER UNIT AND AIR CONDITIONER 审中-公开

    公开(公告)号：US20230272924A1

    公开(公告)日：2023-08-31

    申请号：US18017729

    申请日：2021-07-30

    申请人： DAIKIN INDUSTRIES, LTD.

    发明人： Marie KABU

    IPC分类号： F24F1/0059 ,  F24F13/22

    CPC分类号： F24F1/0059 ,  F24F13/222

    摘要： This air conditioner unit comprises a heat exchanger, but does not comprise any device that forcibly passes air to the heat exchanger. The heat exchanger can be installed in a partition part that demarcates a target space from areas outside of the target space, and is configured such that an airflow in contact with the heat exchanger can pass through. The heat exchanger is configured so that a fluid can flow through the interior thereof. Due to a fluid having a temperature different from the outside air temperature flowing through the heat exchanger, the temperature of the airflow flowing from outside of the target space into the target space is changed, and the air inside the target space is conditioned by the airflow of which the temperature was changed.

    Heat exchanger and heat pump apparatus
    158.
    发明授权
    Heat exchanger and heat pump apparatus 有权

    公开(公告)号：US11740026B2

    公开(公告)日：2023-08-29

    申请号：US17562363

    申请日：2021-12-27

    申请人： DAIKIN INDUSTRIES, LTD.

    发明人： Kouju Yamada ,  Tomoki Hirokawa

    IPC分类号： F28D7/16 ,  F28F9/02

    CPC分类号： F28D7/16 ,  F28F9/02

    摘要： A heat exchanger is connected to a first pipe through which a refrigerant flows. The heat exchanger includes: heat transfer tubes; and a header connected to the heat transfer tubes. The header includes: a first plate-shaped portion connected to the first pipe; a second plate-shaped portion connected to the heat transfer tubes; a third plate-shaped portion disposed between the first plate-shaped portion and the second plate-shaped portion; and a fourth plate-shaped portion that is disposed between the third plate-shaped portion and the second plate-shaped portion and that has communication openings for the heat transfer tubes. The first plate-shaped portion, the third plate-shaped portion, the fourth plate-shaped portion, and the second plate-shaped portion are stacked and overlap in a stacking direction. The third plate-shaped portion has a refrigerant flow path formation opening including: a first region through which the refrigerant flows in a first direction perpendicular to the stacking direction.