| 摘要 |
The invention relates to an exhaust gas heat exchanger for motor vehicles, comprising a cluster of exhaust pipes ( 10 ) which are soldered on the front surface thereof to pipe bottoms, and a housing jacket ( 3, 3 b) which is welded to the pipe bottoms ( 7 ). According to the invention, the pipe bottoms are welded to the housing jacket ( 3 b) by means of peripheral welds ( 11 ). |
