Abstract: A heat exchanger for a motor vehicle includes heat exchange bundle with a plurality of stacked tubes inside which a first heat-transfer fluid circulates, and an end flange arranged on each side of the stack of tubes which brazed to the heat exchange bundle. The end flanges include a flat body with a first surface that faces an aerodynamic element and a second surface, the brazing surface, opposite to the first surface and brazed to the heat exchange bundle. Attachment tabs receive the aerodynamic element and are arranged on the sides of the flat body, the attachment tabs projecting in the opposite direction to the heat exchange bundle. At least one extension of the flat body extends in the same general plane as the flat body and is arranged between a pair of attachment tabs on a same side of the flat body.

Abstract: The invention relates to a collector plate (11) for a heat exchanger (1), the collector plate (11) comprising: a peripheral groove (21) having a bottom (22), at least one upper step (25) protruding with respect to the bottom (22) of the said groove (21) over a predefined height (H1), and at at least one longitudinal end of the collector plate (11), an intermediate portion (27) between the upper step (25) and the said groove (21), According to the invention, at the said at least one longitudinal end of the collector plate (11), the said groove (21) has an inner wall (23), at least one section of which connects the intermediate portion (27) to the bottom (22) of the said groove (21) and extends over a height (H2) which is not zero and is less than the height (H1) of the upper step (25). The invention also relates to a corresponding header box (3) and a corresponding heat exchanger (1).

Abstract: The invention relates to a heat exchanger collector box (3) including: a collector plate (11) having holes respectively lined by collars (19) for passage of ends of heat exchange tubes (7), a sealing means (13), and a cover closing the collector box (3). According to the invention, the sealing means (13) includes at least one support face (29) and is arranged on the collector plate (11) such that: the support face (29) is arranged abutting and under tension against one of the collars (19) when the sealing means (13) is assembled with the collector plate (11), and in the compressed state, the sealing means (13) is kept away from the ends of the heat exchange tubes (7) by interposing collars (19) between the sealing means (13) and the ends of said tubes (7).

Abstract: A heat exchanger for a motor vehicle includes heat exchange bundle with a plurality of stacked tubes inside which a first heat-transfer fluid circulates, and an end flange arranged on each side of the stack of tubes which brazed to the heat exchange bundle. The end flanges include a flat body with a first surface that faces an aerodynamic element and a second surface, the brazing surface, opposite to the first surface and brazed to the heat exchange bundle. Attachment tabs receive the aerodynamic element and are arranged on the sides of the flat body, the attachment tabs projecting in the opposite direction to the heat exchange bundle. At least one extension of the flat body extends in the same general plane as the flat body and is arranged between a pair of attachment tabs on a same side of the flat body.

Abstract: The invention relates to a heat exchanger collector box (3) including: a collector plate (11) having holes respectively lined by collars (19) for passage of ends of heat exchange tubes (7), a sealing means (13), and a cover closing the collector box (3). According to the invention, the sealing means (13) includes at least one support face (29) and is arranged on the collector plate (11) such that: the support face (29) is arranged abutting and under tension against one of the collars (19) when the sealing means (13) is assembled with the collector plate (11), and in the compressed state, the sealing means (13) is kept away from the ends of the heat exchange tubes (7) by interposing collars (19) between the sealing means (13) and the ends of said tubes (7).

Abstract: The invention relates to a collector plate (11) for a heat exchanger (1), the collector plate (11) comprising: a peripheral groove (21) having a bottom (22), at least one upper step (25) protruding with respect to the bottom (22) of the said groove (21) over a predefined height (H1), and at at least one longitudinal end of the collector plate (11), an intermediate portion (27) between the upper step (25) and the said groove (21), According to the invention, at the said at least one longitudinal end of the collector plate (11), the said groove (21) has an inner wall (23), at least one section of which connects the intermediate portion (27) to the bottom (22) of the said groove (21) and extends over a height (H2) which is not zero and is less than the height (H1) of the upper step (25). The invention also relates to a corresponding header box (3) and a corresponding heat exchanger (1).

Abstract: A collector plate for a motor vehicle heat exchanger may include a first receiving zone for tubes of a first tube bundle of a heat exchanger. The collector plate may include a second receiving zone for tubes of a second tube bundle of a heat exchanger and a groove extending between the first and second receiving zones. The collector plate may be thinner in a region of the groove. Further, the collector plate may have a channel reducing the thickness of the collector plate from a first face of the collector plate and opposing a second face of the collector plate including the groove.

Abstract: The invention relates to a collector plate (14) for a motor vehicle heat exchanger (10), comprising a first receiving zone (30) for tubes of a first tube bundle of a heat exchanger (10), and a second receiving zone (32) for tubes of a second tube bundle of a heat exchanger, the collector plate (14) having a groove (38), the groove (38) extending between the first and second receiving zones (30; 32), the collector plate (14) being thinner at the groove (38). The invention also relates to a heat exchange device for a motor vehicle (10), in particular a radiator for cooling the engine of a motor vehicle, with two methodical passes, comprising such a collector plate.