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    • 175. 发明授权
    • Air-cooled heat pump type refrigerating apparatus
    • 风冷式热泵式制冷装置
    • US4625524A
    • 1986-12-02
    • US804939
    • 1985-12-05
    • Takashi KimuraHiromi TanakaMasayoshi Omori
    • Takashi KimuraHiromi TanakaMasayoshi Omori
    • F25B47/02F25B13/00F25B47/00
    • F25B13/00F25B47/006
    • An improved air-cooled heat pump type refrigerating apparatus having a refrigerant circuit reversible into a heating mode and a cooling mode, comprising a series of elements connected by piping means, which include a compressor, a four-way valve, an indoor heat exchanger, a capillary tube for cooling having first check valve connected in parallel therewith, a capillary tube for heating having second check valve connected in parallel therewith and an outdoor heat exchanger. The circuit, by switching the four-way valve, is capable of providing a heating operating mode, a cooling operation mode or a defrosting operation mode. The apparatus is constructed such that a branch tube branching off from a discharge tube of the compressor is provided and midway thereon with a solenoid valve and has a plurality of capillary tubes connected to the other end the branch tube through a distributor. The capillary tubes are connected respectively to heat transfer tubes of the outdoor heat exchanger at points midway thereon. The solenoid valve is arranged to effect during the heating operation the opening and closing thereof by a control circuit which operates to sense the outdoor air temperature and relative humidity.
    • 一种改进的风冷式热泵式制冷装置,其具有可逆成为加热模式和冷却模式的制冷剂回路,包括通过管道装置连接的一系列元件,其包括压缩机,四通阀,室内热交换器, 用于冷却的毛细管具有与其并联连接的第一止回阀,具有与其并联连接的第二止回阀的加热用毛细管和室外热交换器。 通过切换四通阀,该电路能够提供加热操作模式,制冷操作模式或除霜操作模式。 该装置被构造成使得从压缩机的排放管分支的分支管设置有电磁阀的中间,并且具有通过分配器将另一端连接到分支管的多个毛细管。 毛细管分别连接到室外热交换器的传热管,在其中途的点处。 电磁阀被布置成在加热操作期间通过用于感测室外空气温度和相对湿度的控制电路的打开和关闭来实现。