| 摘要 |
A header of a heat exchanger includes a seat member having bent portions on its end portions, a tank member having side walls on its end portions, and a pair of caps sealing the open ends of a barrel formed from the seat member and the tank member. Each side wall has a free end portion bent inwardly by an amount substantially equal to a thickness of the bent portion. The inner surface of each bent portion and the outer surface of each offset free end portion are joined to form the barrel. Thus, protrusions on the exterior shape of the formed barrel are eliminated, thereby eliminating contours from the shape of each cap provided on each open end of the barrel.
|
