Heat exchanger

Details Heat exchanger Heat exchanger

F - Mech Eng,Light,Heat,Weapons

28

F

F28F 9/12 (2006.01) F28D 1/04 (2006.01) F28F 9/02 (2006.01)

Patent

CA 2219509

In a heat exchanger according to the present invention, a projecting edge portion integrally projects outward from an opening edge portion of a tank body, and a tank and a core plate are connected to each other in such a way that a claw portion of an edge portion of the core plate is caulked by being folded toward a back of the projecting edge portion, and the back of the projecting edge portion at the opening edge portion of the tank body and an outside surface of the tank body are continuously connected to each other by a curved surface. Accordingly, stress dispersedly acts on the connection portion between the tank and the core plate so that local stress concentration is prevented and breakage is prevented.

L'échangeur de chaleur proposé dans la présente comporte un rebord en saillie orienté vers l'extérieur d'une ouverture pratiquée dans le corps d'un réservoir; un réservoir et une plaque-noyau sont assemblés l'un à l'autre de telle sorte que la partie servant à la jonction du rebord de la plaque-noyau est matée par pliage et rabattue vers le rebord en saillie, et que la partie arrière du rebord en saillie au niveau de l'ouverture pratiquée dans le corps du réservoir et une surface extérieure du corps du réservoir sont-constamment reliés par l'intermédiaire d'une surface courbe. Ceci a pour effet de disperser les contraintes exercées sur le point de jonction entre le réservoir et la plaque-noyau, éliminant de ce fait les risques de bris mécaniques.

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