Heat exchanger for motor vehicle heating system - has parts made of thermoplastics fastened together with adhesive and welding

摘要

The heat exchanger for the heating circuit for the air-conditioning or heating circuit of a private car consists of a block of finned tubes (1,2) mounted between two header tanks (3,4). The header tank (3) is connected to the return flow pipe (13) and a supply pipe (13') is connected to either of the tanks (3,4). A through-flow pipe (14) connects the two header tanks (3,4 This through flow pipe (14) and the header tanks (3,4) are made of plastics preferably a thermo-plastic material. The through flow pipe (14), the walls (6,8) of the header tanks (3,4) and the cover (5,7) are fastened together by plastic deformation, by bonding with adhesive or by welding. USE - Heating exchangers for motor vehicle heating systems.