| 摘要 |
A new and improved automotive heat exchanger and a method of assembling tubes in a header of a heat exchanger comprising, shaping the ends of non-circular cross section tubes (12) into a substantially circular cross section (20), forming collared openings (17) of substantially circular cross section in a header wall (16), inserting the tube ends (20) into the openings (17), and bonding the tubes (20) to the header wall (16). |
