Heat exchanger, especially gas cooler CO2 - air conditioning

There is described a heat exchanger for automobile air conditioners, the refrigerant-carrying collection pipes (2, 3) and arranged in between the flat tubes (5), wherein the heat exchanger is flowed through multiple flow. One of the header tubes (3) is a distributor device (4) associated with the refrigerant, which is preferably arranged in parallel as a tube with two transfer ports (7, 8) is formed. In this way, a refrigerant guide with a outflow (22) of the heat exchanger in the central region is possible. A DOLLAR Such heat exchangers are preferably used for powered CO¶2¶ as refrigerant automotive air-conditioning.