Valeo Systemes Thermiques

Maryse Philippe

Jean-Christophe Prevost

François Busson

Christian Casenave

Sylvain Moreau

Mohamed Ibrahimi

Francois Busson

Christian Cazenave

A heat exchanger for an air-conditioning circuit of a vehicle. The heat exchanger enables heat exchange between fluids and has a surfaces in contact with one of the fluids. The surface is formed from aluminum and/or from aluminum alloy. The surface is coated with an alumina layer and a reinforcing layer. The reinforcing layer includes an organic substance and a mineral substance. The organic substance includes at least one polymer and the mineral substance is capable of reacting with the aluminum in order to form an anticorrosion material.

Heat exchanger coating

A heat exchanger for an air-conditioning circuit of a vehicle. The heat exchanger enables heat exchange between fluids and has a surface in contact with one of the fluids. The surface is formed from aluminum and/or from aluminum alloy. The surface is coated with an alumina layer and a reinforcing layer. The reinforcing layer includes an organic substance and a mineral substance. The organic substance includes at least one polymer and the mineral substance is capable of reacting with the aluminum in order to form an anticorrosion material.

A tube () of a heat exchanger () is intended to allow an exchange of heat between a first fluid and a second fluid flowing in contact with the tube (). The tube () comprises an upper plate () and a lower plate () positioned facing one another and defining an internal space () in the tube () in which the first fluid is able to circulate. Each of the plates () comprises a bottom () and at least one edge (). The plates () are in contact with one another at the edge (). The tube () comprises a deflection screen () secured to the edge (), with the deflection screen () comprising a first wall () extending transversely to the bottoms () and arranged to deflect the second fluid toward the bottoms (). The invention also relates to a bundle of such tubes and to a heat exchanger comprising such a bundle, and to a method for producing a heat exchanger tube plate.

Growing community of inventors

Le Mesnil Saint Denis, France

Maryse Philippe