Heat exchanger, in particular exhaust gas heat exchanger

摘要

The heat exchanger (10) has a heat transducer (20) streamed by exhaust gas, and a housing outer cover (30) surrounding the heat transducer. The housing outer cover is streamed by a refrigerant, and a fluid-sealed connection of a chamber contains the refrigerant provided between the housing outer cover and the heat transducer. The fluid-sealed connection has an expansion compensation unit (40) permitting an axial relative movement of the heat transducer with respect to non-movable housing outer cover by an elastic deformation.