Air-conditioning apparatus
    61.
    发明授权
    Air-conditioning apparatus 有权
    空调机

    公开(公告)号:US09303906B2

    公开(公告)日:2016-04-05

    申请号:US13877080

    申请日:2010-11-19

    IPC分类号: F25B13/00 F25B41/04 F25B25/00

    摘要: To reduce pressure loss of refrigerant while suppressing a cost increase.[Solution] In an air-conditioning apparatus 100 having a compressor 201, a radiator 204 (301), an expansion device 302, and an evaporator 301 (204), which are connected by a refrigerant pipe to form a refrigeration cycle, at least a part of the refrigerant pipe (207, 208, 209, 210, 211, 212) that connects from the suction side of the compressor 201 to the evaporator 301 (204) is configured by a plurality of pipes connected in parallel, and a refrigerant that flows through the refrigeration cycle is a tetrafluoropropene-based refrigerant or a refrigerant mixture having tetrafluoropropene as a main component.

    摘要翻译: 减少制冷剂的压力损失,同时抑制成本上升。 在具有压缩机201,散热器204(301),膨胀装置302和蒸发器301(204)的空气调节装置100中,至少通过制冷剂管连接以形成制冷循环 从压缩机201的吸入侧与蒸发器301(204)连接的制冷剂配管(207,208,209,210,211,212)的一部分由并联连接的多个配管构成,制冷剂 流过制冷循环的是四氟丙烯系制冷剂或以四氟丙烯为主要成分的制冷剂混合物。

    AIR CONDITIONING APPARATUS
    63.
    发明申请
    AIR CONDITIONING APPARATUS 有权
    空调设备

    公开(公告)号:US20120043056A1

    公开(公告)日:2012-02-23

    申请号:US13263607

    申请日:2009-05-08

    IPC分类号: F28F27/02

    摘要: A first cycle, in which a first medium is circulated, employs a compressor, a first heat exchanger structured with an air heat exchanger, a second heat exchanger, and a third heat exchanger. A second cycle, in which a second medium is circulated and heat is exchanged with the first medium through the second heat exchanger, employs indoor units, each having a fan. A third cycle, in which the second medium is circulated and heat is exchanged with the first medium through the third heat exchanger, shares the indoor units with the second cycle. Flow path switching valves switch flow paths between the second cycle and third cycle. Before the first heat exchanger is defrosted, a halted indoor unit is filled with the second medium in the third cycle with its fan being halted. The third heat exchanger functions as an evaporator during a defrosting operation.

    摘要翻译: 其中第一介质循环的第一循环采用压缩机,由空气热交换器构成的第一热交换器,第二热交换器和第三热交换器。 第二循环,其中第二介质循环并且通过第二热交换器与第一介质进行热交换,使用各自具有风扇的室内单元。 在第二循环中,第二介质循环并且通过第三热交换器与第一介质进行热交换,在第二循环中共享室内单元。 流路切换阀在第二循环和第三循环之间切换流路。 在第一热交换器被除霜之前,停止的室内机在第三循环中填充第二介质,其风扇被停止。 在除霜操作期间,第三热交换器用作蒸发器。

    AIR-CONDITIONING APPARATUS
    66.
    发明申请
    AIR-CONDITIONING APPARATUS 审中-公开
    空调设备

    公开(公告)号:US20120043054A1

    公开(公告)日:2012-02-23

    申请号:US13265413

    申请日:2009-05-13

    IPC分类号: F25B29/00

    摘要: In a first cycle, a first heat exchanger, in which a first medium exchanges heat with the outside air, a second heat exchanger and a third heat exchanger, in which heat is exchanged between the first cycle and a second cycle and between the first cycle and a third cycle, respectively, are connected in series with a first reducing valve and a second reducing valve. In the second cycle and the third cycle that convey cooling energy and heating energy, the flow rates of a second medium in respective branches are adjusted by flow-rate-adjusting valves in accordance with the entrance and exit temperatures of indoor units, and the total flow rate is determined by controlling the rotation speed of a pump by a minimum resistance method. Therefore, even if there are a plurality of loads and the loads change significantly, a stable controlling operation is realized, enabling a highly efficient operation.

    摘要翻译: 在第一循环中,第一换热器,其中第一介质与外部空气进行热交换,第二热交换器和第三热交换器,其中在第一循环与第二循环之间以及在第一循环之间交换热量 和第三循环分别与第一减压阀和第二减压阀串联连接。 在传送冷却能量和加热能量的第二循环和第三循环中,各分支中的第二介质的流量根据室内单元的入口和出口温度由流量调节阀调节,总计 通过以最小电阻法控制泵的转速来确定流量。 因此,即使存在多个负载并且负载显着变化,也能够实现稳定的控制动作,能够进行高效的运转。

    AIR-CONDITIONING APPARATUS
    69.
    发明申请
    AIR-CONDITIONING APPARATUS 有权
    空调设备

    公开(公告)号:US20130233008A1

    公开(公告)日:2013-09-12

    申请号:US13885457

    申请日:2011-01-31

    摘要: An air-conditioning apparatus includes a refrigerant circuit including a low-pressure shell structure compressor into which a refrigerant flowing through an injection pipe flows, a first heat exchanger, a second heat exchanger, a first expansion device, a refrigerant flow switching device, and a second expansion device configured to allow the refrigerant which has passed through the first expansion device and flows from the second heat exchanger to the first heat exchanger to have an intermediate pressure, the compressor, the first heat exchanger, the second heat exchanger, the first expansion device, the refrigerant flow switching device, and the second expansion device being connected by pipes to constitute the refrigerant circuit, and further includes a controller that controls an amount of refrigerant flowing through the injection pipe into a compression chamber. A part of a high-pressure refrigerant flowing from the first heat exchanger to the second heat exchanger flows through the injection pipe.

    摘要翻译: 空调装置包括制冷剂回路,该制冷剂回路包括流过喷射管的制冷剂流过的低压壳结构压缩机,第一热交换器,第二热交换器,第一膨胀装置,制冷剂流量切换装置和 第二膨胀装置,其被配置为允许已经通过第一膨胀装置并从第二热交换器流向第一热交换器的制冷剂具有中间压力,压缩机,第一热交换器,第二热交换器,第一 膨胀装置,制冷剂流动切换装置和第二膨胀装置通过管连接以构成制冷剂回路,并且还包括控制器,其将流过注射管的制冷剂的量控制到压缩室中。 从第一热交换器向第二热交换器流动的高压制冷剂的一部分流过注入管。