HEAT PUMP SYSTEM AND METHOD OF OPERATING

专利名称：HEAT PUMP SYSTEM AND METHOD OF

OPERATING

发明人：Li Jing,Shufu Ding,Haijun Li申请号：US13126046申请日：20081111

公开号：US20110203299A1公开日：20110825

专利附图：

摘要：A heat pump system operable in a cooling mode, a heating mode and a defrostmode includes a refrigerant compressor (), a reversing valve (), a first heat exchanger ()and a second heat exchanger () disposed in a refrigerant circuit, and a primary expansion

valve () disposed in the refrigerant circuit between said first heat exchanger () and saidsecond heat exchanger (); said reversing valve () is positionable in a first position foroperation of said heat pump system in the cooling mode or defrost mode and ispositionable in a second position for operation of said heat pump system in the heatingmode; a refrigerant bypass circuit establishes a refrigerant flow path from the refrigerantcircuit at a first location upstream of said primary expansion valve () and downstream ofsaid first heat exchanger () with respect to refrigerant flow in the defrost mode to a liquidreservoir () disposed in the refrigerant circuit at a second location downstream of saidprimary expansion valve () with respect to refrigerant flow in the defrost mode.

申请人：Li Jing,Shufu Ding,Haijun Li

地址：Shanghai CN,Shanghai CN,Shanghai CN

国籍：CN,CN,CN

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