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17 条记录 (耗时 0.019 秒)

    REFRIGERATION CYCLE APPARATUS
    11.
    发明申请
    REFRIGERATION CYCLE APPARATUS 审中-公开

    公开(公告)号：US20170370627A1

    公开(公告)日：2017-12-28

    申请号：US15541062

    申请日：2015-01-13

    申请人： Mitsubishi Electric Corporation

    发明人： Naofumi TAKENAKA ,  Shinichi WAKAMOTO ,  Kazuya WATANABE ,  Naomichi TAMURA ,  Tadashi ARIYAMA ,  Koji YAMASHITA ,  Takeshi HATOMURA

    IPC分类号： F25B47/02 ,  F25B41/06

    摘要： An air-conditioning apparatus includes a selection unit and a determination unit, the selection unit selecting a reverse-defrosting operation mode or a heating-defrosting simultaneous operation mode, the reverse-defrosting operation mode being a mode in which all of parallel heat exchangers are defrosted by stopping a heating operation, the heating-defrosting simultaneous operation mode being a mode in which each parallel heat exchanger is sequentially defrosted while continuing a heating operation, the determination unit determining whether or not a defrosting operation is to be started, in which the determination unit is configured to start the defrosting operation in a state where the amount of frost deposited on the parallel heat exchangers is smaller in a case where the heating-defrosting simultaneous operation mode is selected than in a case where the reverse-defrosting operation is selected.

    SCROLL COMPRESSOR
    12.
    发明申请
    SCROLL COMPRESSOR 审中-公开

    公开(公告)号：US20170335847A1

    公开(公告)日：2017-11-23

    申请号：US15522150

    申请日：2014-11-20

    申请人： Mitsubishi Electric Corporation

    发明人： Raito KAWAMURA ,  Shin SEKIYA ,  Shinichi WAKAMOTO ,  Masayuki KAKUDA

    IPC分类号： F04C18/02 ,  F04C29/12 ,  F04C29/00

    CPC分类号： F04C18/0292 ,  F04C18/0215 ,  F04C23/008 ,  F04C29/0085 ,  F04C29/028 ,  F04C29/12 ,  F04C2210/26 ,  F04C2240/30 ,  F04C2240/40

    摘要： A second space communicated with a first space through communicating paths is provided on an outer circumferential side of first and second scroll bodies. Scroll end portions of the first and second scroll bodies form an inlet port configured to suck gas refrigerant into a compression chamber from the second space. Open ends of the communicating paths on a side of the second space are located at an angle larger than 0° and less than or equal to 180°, around a central axis of a rotating shaft portion, from the inlet ports in a scroll involute direction of the first scroll body and the second scroll body, respectively. Injection ports in a part of an outer circumference of the second space between the open ends and the inlet ports in a circumferential direction are configured to eject liquid refrigerant in a direction toward the inlet ports, respectively.

    AIR-CONDITIONING APPARATUS
    14.
    发明申请
    AIR-CONDITIONING APPARATUS 审中-公开
    空调设备

    公开(公告)号：US20150316275A1

    公开(公告)日：2015-11-05

    申请号：US14646421

    申请日：2014-02-18

    申请人： MITSUBISHI ELECTRIC CORPORATION

    发明人： Koji YAMASHITA ,  Katsuhiro ISHIMURA ,  Takeshi HATOMURA ,  Soshi IKEDA ,  Shinichi WAKAMOTO ,  Naofumi TAKENAKA

    IPC分类号： F24F5/00 ,  F24F11/00

    CPC分类号： F25B40/02 ,  F24F11/83 ,  F25B13/00 ,  F25B47/022 ,  F25B49/02 ,  F25B2313/005 ,  F25B2313/006 ,  F25B2313/0232 ,  F25B2313/0233 ,  F25B2313/02741 ,  F25B2313/0314 ,  F25B2400/13 ,  F25B2500/18 ,  F25B2600/0271 ,  F25B2600/2509 ,  F25B2600/2513 ,  F25B2700/1931 ,  F25B2700/1933 ,  F25B2700/21152

    摘要： An air-conditioning apparatus includes a refrigerant circuit formed by connecting, with pipes, a compressor to compress refrigerant and discharge the compressed refrigerant, a first heat exchanger, a subcooling heat exchanger exchanges heat between a portion of the refrigerant flowing in a first flow passage and another portion of the refrigerant flowing in a second flow passage to subcool the portion of refrigerant flowing in the first flow passage, a first expansion device to decompress the refrigerant, a second heat exchanger, and an accumulator connected to a suction side of the compressor and configured to store excess refrigerant, so that the refrigerant is circulated through the refrigerant circuit. The air-conditioning apparatus is configured to prevent the discharge temperature of the compressor from being excessively increased irrespective of the operation mode and therefore prevent damage to the compressor.

    摘要翻译： 空调装置包括制冷剂回路，该制冷剂回路通过管道连接压缩机来压缩制冷剂并排出压缩的制冷剂，第一热交换器，过冷却热交换器在第一流动通道 另一部分制冷剂在第二流路中流动，以使在第一流动通道中流动的制冷剂部分过冷，将制冷剂减压的第一膨胀装置，连接到压缩机的吸入侧的第二热交换器和蓄能器 并且构造成存储多余的制冷剂，使得制冷剂循环通过制冷剂回路。 空气调节装置被配置为防止压缩机的排放温度与运行模式无关地过度增加，并且因此防止对压缩机的损坏。

    AIR-CONDITIONING APPARATUS
    15.
    发明申请
    AIR-CONDITIONING APPARATUS 审中-公开

    公开(公告)号：US20190107314A1

    公开(公告)日：2019-04-11

    申请号：US16088877

    申请日：2016-05-16

    申请人： Mitsubishi Electric Corporation

    发明人： Kazuya WATANABE ,  Shinichi WAKAMOTO ,  Naofumi TAKENAKA ,  Naomichi TAMURA ,  Tadashi ARIYAMA

    IPC分类号： F25B47/02 ,  F25B13/00 ,  F25B41/06

    摘要： An air-conditioning apparatus includes: a first defrosting pipe branching from a main circuit to supply a portion of refrigerant discharged from a compressor to one of plural parallel heat exchangers to be defrosted; a second defrosting pipe which returns, to the main circuit, the refrigerant supplied through the first defrosting pipe to the one parallel heat exchanger; a first expansion device provided on the first defrosting pipe; a second expansion device provided on the second defrosting pipe to adjust a pressure of the refrigerant in the one parallel heat exchanger; and a third expansion device provided between a connection point between an outlet of the second defrosting pipe and the main circuit and one of plural indoor heat exchangers functioning as an evaporator, to adjust a pressure of the refrigerant in the one of the indoor heat exchangers; and a controller that controls the second and third expansion devices individually.