Valeo Systemes Thermiques

Valeo Thermique Moteur

Jerome Genoist

Jacques Hoffnung

Carlos Alberto Martins

Jean-Louis Laveran

Pascal Guerrero

A condenser for a motor vehicle air-conditioning circuit includes a multitude of stacked main-section plates assembled to delimit first flow channels for a refrigerating fluid which alternate with second flow channels for a cooling fluid. The condenser includes at least two passes over the refrigerating fluid. The condenser also includes at least one condenser inlet and one condenser outlet for refrigerating fluid. The condenser also includes an inlet pass over the refrigerating fluid communicating with the condenser inlet and an outlet pass communicating with the condenser outlet. The cross section of the passes diminishes from the inlet pass towards the outlet pass.

Condenser for a motor vehicle air conditioning circuit, and circuit comprising same

The invention concerns a condenser consisting of stacked plates () provided each with a raised peripheral edge () in sealed assembly to define flow channels between the plates for a refrigerating fluid (F) and a cooling fluid (F). The plates comprise communicating passageways () for the passage of the refrigerating fluid and the cooling fluid from one flow channel to the other. Annular ducts () are provided opposite the communicating passageways to prevent the fluids from being mixed. A bottle () is interposed between a cooling section () and sub-cooling section (). The invention is applicable to motor vehicles.

Condenser, in particular for a motor vehicle air conditioning circuit, and circuit comprising same

The invention relates to a hydraulic circuit element () for heat exchange between a first fluid and a second fluid, which defines a path for the first fluid and comprises at least one tube () having two ends and at least one tip () at one of said ends of the tube (), said tip having at least one communicating passage () that defines the path of the first fluid. The invention also relates to a heat exchanger obtained by stacking circuit elements (). Such a heat exchanger can be used in particular in motor vehicles.

Circuit element for heat exchanger, in particular for motor vehicle, and resulting heat exchanger

The heat exchange module, intended for a motor vehicle with internal combustion engine fitted with a high temperature cooling system and a low temperature cooling system, comprises at least one row of heat exchange tubes () connected to at least one inlet manifold () and to at least one outlet manifold (), these tubes forming a heat exchange surface. It comprises surface distribution means () that are used to divide the heat exchange surface into a high temperature heat exchange section and a low temperature heat exchange section. The module preferably comprises a high temperature fixed section (), a low temperature fixed section () and an intermediate section that can be allocated wholly or partly to the sections (and).

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Versailles, France

Jerome Genoist