Valeo Systemes Thermiques

Bertrand Gessier

Carlos Alberto Martins

Guillaume Bourgoin

Mohamed Yahia

Laurent Odillard

Georges De Pelsemaeker

Eric Droulez

Anne-Sylvie Magnier-Cathenod

Jean-Sylvain Bernard

Mikhaël Preschner

Abdelaziz Gormat

Stéphane Tondelli

José Borges-Alejo

Zoulika Soukeur

Stéphanie Moroz

Refrigerant circuit for a thermal treatment system, including a main channel including a compression device, a radiator, an evaporator/condenser, an accumulation device, a first channel and a second channel. The first channel includes an evaporator, the second channel includes a first heat exchanger configured to exchange heat between the refrigerant and a heat transfer fluid flowing through a heat transfer fluid circuit. The refrigerant circuit further includes a third channel having a second heat exchanger configured to exchange heat between the refrigerant and the heat transfer fluid of the heat transfer fluid circuit.

Refrigerant circuit for a thermal treatment system

The invention concerns a device () for controlling an air flow (F) circulating in a first heat exchanger () for a motor vehicle comprising at least two screens (), the control device () being configured to go from a closed configuration in which the screens () obstruct the passage of the air flow (F) completely to an open configuration in which the screens () are positioned in such a manner as to allow the air flow (F) to pass with a maximum flow rate, and any intermediate configuration. According to the invention, the two screens () are adapted to be moved away from one another when the control device () goes from the closed configuration to the open configuration and to be moved toward one another when the control device () goes from the open configuration to the closed configuration.

Device for controlling an air flow

A compression and expansion machine is disclosed that includes a body with at least one chamber about an axis of symmetry, and pistons rotating about the axis of symmetry and dividing the chamber into cells rotating with the pistons. The invention also includes a device for coordinating the movement of the pistons and configured so that, during one rotation cycle, each of the cells performs at least one first expansion/contraction cycle corresponding to a stage of compressing a first stream of gas passing through this cell and at least one second expansion/contraction cycle corresponding to a stage of expanding a second stream of gas passing through this cell.

Scissor type compression and expansion machine used in a thermal energy recuperation system

The present invention relates to a device () for the thermal management of the intake air of an internal combustion engine () equipped with a turbocharger (), said device comprising:

Device for the thermal management of engine intake air

The invention concerns a device for recirculation of exhaust gases from an engine () of a motor vehicle, comprising a first exhaust gas recirculation line () called an EGR line, a first heat exchanger () provided on said EGR line () to ensure cooling of the recirculated exhaust gases, and treatment means () for the exhaust gases allowing limitation of the pH of the condensate arising from said gases. The treatment means () are provided upstream of the first exchanger () along the path of the exhaust gases, and the exchanger () comprises a heat exchanger bundle made of aluminum and/or aluminum alloy.

Device for recirculating exhaust gas from the engine of an automobile, and use of such a device

The invention relates to a gas distribution manifold () in the cylinder head of a heat engine of a motor vehicle, said manifold () comprising a manifold housing () provided with an inflow face for the inflow of an admission gas (G) and an outflow face (B) entering the cylinder head of the engine, and an injection spout () for injecting a recirculated exhaust gas flow (H) of the engine into the admission gas flow (G), the manifold housing () and the injection spout () forming a single component. As the injection spout () comprises an open face, the manifold () is configured such that said open face is closed by an element outside the manifold (), especially the cylinder head, in such a way as to form a tubular injection pipeline.

Gas distribution manifold in the cylinder head of an engine, set comprising a distribution manifold and an engine cylinder head

The invention relates to a gas distribution manifold () in the cylinder head () of a heat engine of a motor vehicle, said manifold () comprising a manifold housing () provided with an inflow face for the inflow of an admission gas (G) and an outflow face (B) entering the cylinder head of the engine, in such a way as to enable the circulation of the admission gas flow in the downstream direction in the manifold housing (); and means for injecting a recirculated exhaust gas flow (H) of the engine into the admission gas flow (G). Said injection means are formed in the manifold in such a way that the recirculated exhaust gas flow is injected in a counter-flow to the admission gas flow.

Gas distribution manifold in the cylinder head of an engine, with the recirculated exhaust gas mixture in a counter-flow to the admission gases

A heat exchanger for the air supply circuit of a motor vehicle engine includes a heat exchange core and at least one header tank. The heat exchanger also includes an air flow rate control valve arranged in the header tank of the exchanger, and the control valve is a valve that includes a body with three openings and a moving rotary member inside the body so as to control the circulation of air through the heat exchange core and/or through a duct bypassing the heat exchange core according to a law defined as a function of the angular position of the rotary member in the body.

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Montfort l'Amaury, France

Bertrand Gessier