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US 5,348,082 AGranted
Heat exchanger with tubes of oblong cross section, in particular for motor vehicles
AssigneeValeo Thermique Moteur
InventorsPascal Velluet, Jacques Hoffnung
Life of this patent
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Abstract
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.
Claims10
A heat exchanger comprising:
- a header plate defining a multiplicity of oblong through holes therein, each defining an internal surface of the hole;
- a set of tubes of oblong cross section, each having an end portion engaged in a corresponding one of the holes in the header plate;
- and a sealing gasket having a multiplicity of tubular gasket portions, each interposed between the internal surface of a corresponding said hole and the corresponding tube end portion so as to be compressed, wherein each tube end portion has a free terminal edge and a wall reinforced by a bead spaced away from the terminal edge, wherein the bead extends over part of the periphery of the corresponding end portion.
Dependencies are inferred from the claim text.