Abstract: The present invention provides a heat exchanger including a tank, a plurality of tubes in fluid communication with the tank, and a plurality of fins extending between the tubes. The tank includes a header member and a cover member, each of which is formed from a single sheet of aluminum. The header member includes an elongate generally planar base section having first and second ends and a middle portion disposed between the first and second ends. The header member also includes a flange section that extends along one edge of the base section and a wall section that extends along the opposite edge of the base section. The cover member has a central section that is spaced apart from the middle portion of the header member and a periphery that is joined to the first and second ends of the base section, the flange section, and the wall section.

Abstract: The present invention provides a heat exchanger including a tank, a plurality of tubes in fluid communication with the tank, and a plurality of fins extending between the tubes. The tank includes a header member and a cover member, each of which is formed from a single sheet of aluminum. The header member includes an elongate generally planar base section having first and second ends and a middle portion disposed between the first and second ends. The header member also includes a flange section that extends along one edge of the base section and a wall section that extends along the opposite edge of the base section. The cover member has a central section that is spaced apart from the middle portion of the header member and a periphery that is joined to the first and second ends of the base section, the flange section, and the wall section. The cover member is preferably joined to the header member by brazing.