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    • 4. 发明授权
    • Refrigerant flow control system for use with refrigerator
    • 制冷剂流量控制系统,用于冰箱
    • US4706469A
    • 1987-11-17
    • US16404
    • 1987-02-19
    • Kensaku OguniKyuhei IshibaneShigeaki KurodaHiromu YasudaTakashi SanoHironori Etou
    • Kensaku OguniKyuhei IshibaneShigeaki KurodaHiromu YasudaTakashi SanoHironori Etou
    • F24F11/02F25B13/00F25B29/00F25B41/06G05D23/24F25B41/04
    • F25B13/00F25B41/062F25B2600/21F25B2600/2513
    • A refrigerant flow control system associated with a refrigerant circulating circuit having a compressor, a condenser, an expansion valve and an evaporator, includes a branch pipe extending from a discharge pipe of the compressor and having on sealed free end. A first temperature sensor is disposed on the branch pipe near the sealed free end for detecting a condensation temperature of a refrigerant which is condensed in the branch pipe. A second temperature sensor is disposed on the discharge pipe of the compressor for detecting a temperature of the gaseous refrigerant discharged from the compressor. The signals representative of the condensation temperature and the temperature of the discharge gaseous refrigerant are inputted to a control device. The control device calculates a difference between the two detected temperatures, and a degree of superheat of the discharged gaseous refrigerant and transfers to the expansion valve a command signal representative of the calculation results, thereby controlling an opening of the expansion valve.
    • 与具有压缩机,冷凝器,膨胀阀和蒸发器的制冷剂循环回路相关联的制冷剂流量控制系统包括从压缩机的排出管延伸并具有密封的自由端的分支管。 第一温度传感器设置在密封的自由端附近的分支管上,用于检测在分支管中冷凝的制冷剂的冷凝温度。 第二温度传感器设置在压缩机的排出管上,用于检测从压缩机排出的气态制冷剂的温度。 表示冷凝温度和排出气体制冷剂的温度的信号被输入到控制装置。 控制装置计算两个检测温度之间的差异和排出的气体制冷剂的过热度,并将表示计算结果的膨胀阀的指令信号传递到膨胀阀,从而控制膨胀阀的打开。