| 摘要 |
PROBLEM TO BE SOLVED: To reduce thermal stress while preventing lowering of stiffness (intensity) of a side plate in a duplex heat exchanger wherein a radiator and a condenser are integrated. SOLUTION: A wavy shaped flexible portion 132 which can be expended and contracted is provided at a portion of the side plate 130, to which a radiator header tanks 123, 124 are connected. Thus, thermal stress that has been generated in both of tubes 111, 121 can be absorbed by the flexible portion 132 even if the length of a notch of a slit 133 is rendered short. Accordingly, thermal stress generated in the tubes can be reduced while preventing lowering of stiffness (intensity) of the side plates 130. |
