HEAT PUMP SYSTEM AND METHOD OF OPERATING
    1.
    发明申请
    HEAT PUMP SYSTEM AND METHOD OF OPERATING 审中-公开
    热泵系统及其运行方法

    公开(公告)号:US20110203299A1

    公开(公告)日:2011-08-25

    申请号:US13126046

    申请日:2008-11-11

    IPC分类号: F25D21/06 F25B13/00

    摘要: A heat pump system operable in a cooling mode, a heating mode and a defrost mode includes a refrigerant compressor (20), a reversing valve (30), a first heat exchanger (40) and a second heat exchanger (50) disposed in a refrigerant circuit, and a primary expansion valve (45) disposed in the refrigerant circuit between said first heat exchanger (40) and said second heat exchanger (50); said reversing valve (30) is positionable in a first position for operation of said heat pump system in the cooling mode or defrost mode and is positionable in a second position for operation of said heat pump system in the heating mode; a refrigerant bypass circuit establishes a refrigerant flow path from the refrigerant circuit at a first location upstream of said primary expansion valve (45) and downstream of said first heat exchanger (40) with respect to refrigerant flow in the defrost mode to a liquid reservoir (70) disposed in the refrigerant circuit at a second location downstream of said primary expansion valve (45) with respect to refrigerant flow in the defrost mode.

    摘要翻译: 在冷却模式,加热模式和除霜模式下可操作的热泵系统包括:制冷剂压缩机(20),换向阀(30),第一热交换器(40)和第二热交换器(50) 制冷剂回路和设置在所述第一热交换器(40)和所述第二热交换器(50)之间的制冷剂回路中的一级膨胀阀(45)。 所述换向阀(30)可定位在第一位置,用于在制冷模式或除霜模式下操作所述热泵系统,并且可定位在第二位置,用于在加热模式下操作所述热泵系统; 制冷剂旁路回路在所述主膨胀阀(45)的上游的第一位置和所述第一热交换器(40)的下游,相对于除霜模式下的制冷剂流向制冷剂回路建立制冷剂流路, 70),其设置在所述主膨胀阀(45)的下游的第二位置处,与所述除霜模式下的制冷剂流相对。