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    • 7. 发明公开
    • Compressor refrigeration system with demand cooling
    • KompressorkälteanlagemitBedarfskühlung。
    • EP0423976A1
    • 1991-04-24
    • EP90310852.0
    • 1990-10-04
    • COPELAND CORPORATION
    • Diab, Tariq Abdel Rahim
    • F25B31/00F25B41/04F04B39/06F04B49/10
    • F04B39/062F04C18/0215F04C18/16F25B31/008
    • A refrigeration system is disclosed which incorporates apparatus for preventing overheating of the compressor (10, 10') by selectively feeding liquid refrigerant from the outlet of the condenser (16, 16') to the compressor (10, 10'). In one embodiment the refrigerant fluid from the condenser (16) is injected into the suction manifold (52) of the compressor (10). In another embodiment this fluid is injected directly into the compression chamber or chambers (88, 90). Control means are provided which include a temperature sensor (32, 70, 112) located within the compressor discharge chamber (58, 114) and valve means (38, 100, 102) responsive thereto to control the flow of liquid refrigerant to the suction manifold (52) or compression chamber (88, 90).
    • 公开了一种制冷系统,其包括用于通过选择性地将液体制冷剂从冷凝器(16,16')的出口供给到压缩机(10,10')来防止压缩机(10,10')过热的装置。 在一个实施例中,来自冷凝器(16)的制冷剂流体被注入到压缩机(10)的抽吸歧管(52)中。 在另一个实施例中,该流体直接注入到压缩室或室(88,90)中。 提供了控制装置,其包括位于压缩机排放室(58,114)内的温度传感器(32,70,112)和对其进行响应的阀装置(38,100,102),以控制液体制冷剂到吸入歧管的流动 (52)或压缩室(88,90)。