Abstract: The invention relates to a method for producing a heat exchanger tube (1) by bending a metal strip (11), said tube (1) having an internal partition (19) formed by joining the ends of opposing edges (11a, 11b), said partition facing a projection (50) that extends into the heat exchanger tube (1) at a joining zone (22). The method comprises the following steps: locally stamping the metal strip (11) in order to produce a projection at the joining zone (22); and bending the metal strip (11) in order to form said heat exchanger tube (1), such that the projection extends into the tube (1). The invention also relates to such a tube (1) and to a heat exchanger (3) comprising a bundle of said tubes (1).

Abstract: The invention relates to a method for producing a heat exchanger tube (1) by bending a metal strip (11), said tube (1) having an internal partition (19) formed by joining the ends of opposing edges (11a, 11b), said partition facing a projection (50) that extends into the heat exchanger tube (1) at a joining zone (22). The method comprises the following steps: locally stamping the metal strip (11) in order to produce a projection at the joining zone (22); and bending the metal strip (11) in order to form said heat exchanger tube (1), such that the projection extends into the tube (1). The invention also relates to such a tube (1) and to a heat exchanger (3) comprising a bundle of said tubes (1).

Abstract: The invention concerns a heat exchanger header box (1). The header box (1) includes a flat collecting plate (7) with openings (9) for the passage of a plurality of ends (5) of heat exchange tubes (3), and a cover (15) with at least two opposing lateral faces (23) comprising a peripheral cover base (17). The cover (15) closes the header box (1). According to the invention, the cover (15) comprises a predefined number of internal tie rods (25) such that the tie rods (25) extend respectively between the two opposing side faces (23) at the level of the cover base (17), being interposed between two openings (9) of the collecting plate (7). The invention further concerns a heat exchanger comprising the header box (1).