公开(公告)号：EP4170262A1

公开(公告)日：2023-04-26

申请号：EP21203817.8

申请日：2021-10-20

申请人： Thermo King Corporation

发明人： HOUDEK, Pavel ,  GALANSKY, Martin ,  SOUKUP, Martin

IPC分类号： F25B40/00

摘要： There is disclosed heat pump 10, comprising: an internal heat exchanger 40 configured to transfer heat from refrigerant in a liquid line pathway to refrigerant in a suction line pathway, to superheat the refrigerant upstream of a compressor 12; and a controller 50 configured to: control an expansion valve 16 to maintain a target superheat of refrigerant at a control location. The target superheat is variable and is determined based on one or more operating conditions of the heat pump. There is also disclosed a method of operating a heat pump and a simulation method to determine a variable superheat.