Valeo Thermique Moteur

Pascal Velluet

Jacques Hoffnung

Jean-Pierre Tournebize

A heat exchanger, typically an air conditioning condenser for a motor vehicle, has a fluid header comprising a tubular wall formed with a number of apertures, the heat exchanger having a set of tubes for flow of fluid, with each tube being received sealingly in a respective one of these apertures. The tubular wall comprises two semi-cylindrical wall members assembled together sealingly through their longitudinal edges. Each aperture for receiving a respective tube comprises two slots formed in the respective wall members, extending from an edge of the latter, with lugs being cut out during formation of these slots adjacent to the base of each slot. These lugs are bent outwardly from the fluid header so as to bear on the sides of the tube. During assembly of the heat exchanger, the two wall members are brought towards each other so as to capture the ends of the tubes between them, whereby the tubes penetrate into the slots.

Two-part tubular wall, and a method for making a motor vehicle air

A heat exchanger, especially a cooling radiator for motor vehicle engine, comprises a multiplicity of tubes of oblong cross section, each having an end portion fitted in a corresponding hole formed in a header plate, the joint being sealed by means of a sealing gasket. The sealing gasket has a tubular portion compressed between each tube end portion and an internal surface of the corresponding hole in the header plate, each tube end portion being formed with a peripheral bead spaces away from the terminal edge of the tube.

Heat exchanger with tubes of oblong cross section, in particular for

A heat exchanger, typically a condenser for a motor vehicle air conditioning system, comprises a set of tubes aligned with each other and having their ends extending through apertures into the interior of a tubular wall of a header of the heat exchanger, the tubes being secured to the header. The tubular wall is formed with at least one internal projection against which the end of each tube is abutted.

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Cernay la Ville, France

Pascal Velluet