| 摘要 |
The invention relates to a heat exchanger for a motor vehicle, in particular an exhaust gas heat exchanger, said heat exchanger (1) comprising an outer casing (2) in which heat exchanger tubes (3) are arranged as bundles. The invention is characterized in that at least one heat exchanger tube (3) comprises a double-wall, consisting of an outer tube (4) and an inner tube (5), a first medium (19) flowing into the casing (2) and/or into the inner tube (5) and a second medium (9) flowing between the outer tube (4) and the inner tube (5). |
