Abstract: A header for a heat exchanger having spaced manifolds and tubes extending between the manifolds is disclosed. The header plate comprises a header plate forming a portion of the manifold and having an outward surface for orienting away from the interior of the manifold. At least one opening is formed in the header plate, and is elongated with a longitudinal axis and opposite ends. The at least one opening has a perimeter with sides and ends. A ferrule extends from the outward surface of the header plate along portions of the perimeter of the opening. The ferrule includes at least two ferrule portions formed along portions of the perimeter of the opening. The ferrule is absent from portions of the perimeter of the opening between the portions of the perimeter having the ferrule portions formed thereon.

Abstract: A heat exchanger has first and second sides and comprises a pair of tanks, with each of the tanks defining an interior and including a header. A plurality of openings is formed in the header; The heat exchanger comprises a plurality of tubes extending between the openings in the tanks, with each of the tubes having opposite end portions joined to the tanks to fluidly connect the interiors of the tanks through interiors of the tubes. The heat exchanger comprises at least one reinforcement ribbon element extending across a juncture between the header and the plurality of tubes to reinforce a connection between the header and the plurality of tubes.