Apparatus for detecting composition of refrigerant and method therefor
    13.
    发明授权
    Apparatus for detecting composition of refrigerant and method therefor 失效
    用于检测制冷剂组成的装置及其方法

    公开(公告)号:US5410887A

    公开(公告)日:1995-05-02

    申请号:US129351

    申请日:1993-09-30

    摘要: A mixed-refrigerant comprising two or more types of refrigerants having different boiling points is enclosed in a refrigerating cycle and a capacitance sensor is used as a device for detecting a composition of the mixed-refrigerant. The electrostatic capacitance sensor is disposed in an evaporation portion of the refrigerating cycle. The refrigerating cycle has a refrigerant composition calculating device for calculating a composition of the refrigerant in the refrigerating cycle in accordance with an output signal from the capacitance sensor and an adequate composition judging device for judging whether or not the composition of the mixed-refrigerant circulating in the refrigerating cycle is in an adequate state in accordance with an output signal from the refrigerant composition calculating device.

    摘要翻译: 包含两种以上沸点不同的制冷剂的混合制冷剂被包围在制冷循环中,电容式传感器用作检测混合制冷剂的组成的装置。 静电电容传感器设置在制冷循环的蒸发部分中。 制冷循环具有:制冷剂组成计算装置,用于根据来自电容传感器的输出信号计算制冷循环中的制冷剂的组成;以及适当的组成判定装置,用于判断循环的混合制冷剂的组成 制冷循环根据来自制冷剂组成计算装置的输出信号处于适当的状态。

    Refrigerating system and operating method thereof
    16.
    发明授权
    Refrigerating system and operating method thereof 失效
    制冷系统及其操作方法

    公开(公告)号:US5709090A

    公开(公告)日:1998-01-20

    申请号:US562950

    申请日:1995-11-27

    CPC分类号: F25B9/006 F25B2400/16

    摘要: A refrigerating system having a refrigerating cycle constructed by connecting an accumulator, a refrigerant compressor, a four-way valve, an outdoor unit heat exchanger, an outdoor unit expander, a receiver, an indoor unit expander and an indoor unit heat exchanger sequentially by pipes. Normally, excessive refrigerant is stored in the receiver and when it becomes necessary to raise a ratio of lower boiling point refrigerants, a flow amount of the refrigerant is decreased by restricting the outdoor unit expander during the cooling operation or by restricting the indoor unit expander during the heating operation to move the excessive refrigerant within the receiver to the accumulator. Thereby, the composition of the refrigerant circulating within the refrigerating system using non-azeotrophic refrigerant mixtures may be changed without using a complicated system structure or control method thereof and the capacity of the refrigerating cycle may be changed.

    摘要翻译: 一种具有制冷循环的制冷系统,其通过管道连接蓄能器,制冷剂压缩机,四通阀,室外机热交换器,室外机膨胀机,接收器,室内机膨胀机和室内机热交换器 。 通常,过量的制冷剂储存在接收器中,并且当需要提高低沸点制冷剂的比例时,通过在制冷运转期间限制室外单元膨胀器或者在室内单元膨胀器期间限制制冷剂的流量减少 加热操作以将接收器内的过量制冷剂移动到蓄能器。 因此,可以在不使用复杂的系统结构或其控制方法的情况下改变在制冷系统内循环的制冷剂的组成,并且可以改变制冷循环的能力。

    Refrigeration system incorporating scroll type compressor
    19.
    发明授权
    Refrigeration system incorporating scroll type compressor 失效
    涡旋式压缩机制冷系统

    公开(公告)号:US4475360A

    公开(公告)日:1984-10-09

    申请号:US458923

    申请日:1983-01-18

    摘要: A refrigeration system including a scroll type compressor having a stationary scroll member, an orbiting scroll member, a discharge port formed in the central portion of the end plate of the fixed scroll member, a suction port formed in a peripheral portion of the fixed scroll member, and at least one gas injection port formed through the thickness of an end plate of the fixed scroll member in a portion of the end plate near the spiral wrap, at a position spaced from the wall of the spiral wrap by a radial distance less than the thickness of the spiral wrap. A discharge pipe is connected to the discharge port, with a suction pipe being connected to the suction port. A refrigerant circuit is connected between the suction pipe and the discharge pipe of the scroll type compressor and includes a four-way valve, indoor heat exchanger, first pressure reducer, gas-liquid separator, second pressure reducer and an outdoor heat exchanger. A gas injection passage is connected between the gas outlet formed in an upper part of the gas-liquid separator and the gas injection port, so as to permit the refrigerant gas in the upper part of the gas-liquid separator to be additionally supplied into the compression chambers under compression in the scroll type compressor.

    摘要翻译: 一种制冷系统,包括具有固定涡旋构件的涡旋式压缩机,形成在固定涡旋构件的端板的中心部的旋转涡旋构件,排出口,形成在固定涡旋构件的周向部分中的吸入口 以及至少一个气体注入口,其通过所述固定涡旋构件的端板的厚度在所述端板的靠近所述螺旋形涡卷的部分中形成,所述至少一个气体注入口在与所述螺旋状涡卷的壁间隔开径向距离小于 螺旋卷的厚度。 排出管连接到排出口,吸入管连接到吸入口。 在涡旋式压缩机的吸入管和排出管之间连接有制冷剂回路,包括四通阀,室内热交换器,第一减压器,气液分离器,第二减压器和室外热交换器。 在气液分离器的上部形成的气体出口和气体注入口之间连接有气体注入通道,以便将气液分离器的上部的制冷剂气体另外供给到 在涡旋式压缩机中受压缩的压缩室。

    Air conditioner and operating method thereof
    20.
    发明授权
    Air conditioner and operating method thereof 失效
    空调及其操作方法

    公开(公告)号:US5107684A

    公开(公告)日:1992-04-28

    申请号:US485049

    申请日:1990-02-26

    摘要: An air conditioner comprising a compressor, a four-way directional control valve, an outdoor heat exchanger, and a plurality of indoor heat exchangers, which are arranged to enable the cooling/heating combined operation. The air conditioner further comprises a first connecting pipe bypassed from a piping line, which is adapted to feed a compressed coolant from the compressor toward the outdoor heat exchanger, for line communication with at least one indoor unit, and a second connecting pipe bypassed from a piping line, which is adapted to feed the compressed refrigerant from the compressor toward at least one indoor heat exchanger, for line communication with the outdoor heat exchanger.

    摘要翻译: 一种空气调节机,具备压缩机,四通方向控制阀,室外热交换器和多个室内热交换器,它们被配置成能够进行冷却/加热组合操作。 所述空调还包括从管道旁路的第一连接管,其适于将压缩的冷却剂从所述压缩机供给到室外热交换器,用于与至少一个室内单元进行管路连通,以及从第一连接管 管线,其适于将压缩的制冷剂从压缩机供给至少一个室内热交换器,用于与室外热交换器的线路连通。