| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat exchanger capable of reducing heat strains generated in root portions between a tank portion and tubes.SOLUTION: A heat exchanger comprises: a core section 3 in which a cooling fluid flows and that is configured by stacking a plurality of tubes 1 outside of which intake air flows; a tank section 4 aggregating or distributing the cooling fluid flowing in the tubes 1; a duct plate 5 disposed to cover the core section 3 and forming an intake channel, the duct plate 5 is joined to the tank section 4, the tank section 4 includes a tube joint surface 400 to which the tubes 1 are joined, a rib 8 extending in an intake flow direction is provided between an outermost tube 10 and the tube 1 adjacent to the outermost tube 10 on the tube joint surface 400, and the rib 8 is not provided outward, in a tube stacking direction, of the outermost tube 10 on the tube joint surface 400. |
