EXHAUST GAS HEAT EXCHANGER AND HEAT EXCHANGE DEVICE FOR EXHAUST GAS PROVIDED WITH SAME

摘要

This exhaust gas heat exchanger includes: an exhaust gas flow path (111) through which exhaust gas that has been expelled from an internal-combustion engine (1) flows; and a core portion (140) which effects heat exchange between exhaust gas flowing through the interior of the exhaust gas flow path (111), and a heat transfer medium flowing through the exterior of the exhaust gas flow path (111). The exhaust gas heat exchanger is provided with a core plate (160) and a flow path forming member (130). The core plate (160) is joined to the flow path forming member (130). An exhaust gas flow-through component (4) through which the exhaust gas flows and which communicates with the exhaust gas flow path (111) is coupled to the core portion (140). The exhaust gas flow-through component (4) is fastened to the core plate (160) by crimp-securing, in a state in which a resilient member (5) is sandwiched between a surface of the core plate (160) on the side opposite to the core portion (140), and an end portion (42) of the exhaust gas flow-through component (4). The flow path forming member (130) has crimping portions (132, 133) for crimp-securing the end portion (42) of the exhaust gas flow-through component (4).