REFRIGERATION SYSTEM FOR A VEHICLE, COMPRISING A REFRIGERANT CIRCUIT HAVING A HEAT EXCHANGER, AND HEAT EXCHANGER FOR SUCH A REFRIGERATION SYSTEM

摘要

The invention relates to a refrigeration system (10) for a vehicle, comprising a refrigerant circuit (1) having a double-flow heat exchanger (2), it being possible to operate the heat exchanger (2) as a refrigerant condenser/gas cooler for an AC mode or as an air heat pump evaporator for a heat pump mode. According to the invention, the first flow (2.1) of the heat exchanger (2) has a first refrigerant connection (2.10) and the second flow (2.2) of the heat exchanger (2) has a second refrigerant connection (2.20), wherein, for double flow through the heat exchanger in AC mode, the first refrigerant connection (2.10) is a refrigerant inlet (E_AC) and the second refrigerant connection (2.20) is a refrigerant outlet (A_AC), and for single flow through the heat exchanger (2) in heat pump mode, the second refrigerant connection (2.20) is a refrigerant inlet (Ew^p). To control the flow of the refrigerant from the second refrigerant connection (2.20) to the first refrigerant connection (2.10), a unidirectional valve member (2.4) fluidically connects the second refrigerant connection (2.20) to the first refrigerant connection (2.10), the heat exchanger (2) has at least one third refrigerant connection (2.30) which is fluidically connected as a refrigerant outlet (A1w^p) to the first flow (2.1) and the second flow (2.2) on the refrigerant output side, and the third refrigerant connection (2.30) is fluidically connected to a valve member (2.5) to control the refrigerant exiting the heat exchanger (2). The invention also relates to a heat exchanger for the refrigeration system according to the invention.