Valeo Systemes Thermiques

Frédéric Bernard

Aurélie Bellenfant

Jimmy Lemee

Lionel Renault

The invention relates to a heat-exchanger for an air-conditioning circuit that includes a first pipe () defining a path for a flow of fluid, the first pipe being spirally wound about a so-called exchanger axis (A). According to the invention, the heat exchanger () further includes at least one second pipe () defining a path for a flow of a second fluid, said second pipe being provided against a surface of the first pipe () and spirally wound together with said first pipe () about said axis (A). The invention can be used in air-conditioning circuits operating with a super-critical coolant, in particular carbon dioxide (CO2).

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Ferce sur Sarthe, France

Frédéric Bernard