Wärmetauscher

摘要

A heat exchanger is provided with a casing (5) in which a heat exchanger core (3) is received. The core (3) is provided with a pair of inlet/outlet pipes (1) in its opposite end portions. These pipes (1) pass through the casing (5) to project outward. The heat exchanger is capable of sufficiently absorbing any difference in thermal expansion between its components such as the casing (5) and the core (3), which is realized by the provision of a bellows (6) fluid-tightly interposed between at least one of the inlet/outlet pipes (1) of the core (3) and a corresponding one of a pair of through-hole portions (4) of the casing (5).