Abstract: An exhaust gas recirculation system is provided that includes an internal combustion engine, which is supplied with exhaust gas, diverted at a removal point and returned via a return point and/or charge air, having a heat exchanger arranged between the removal point and the return point, for the returned exhaust gas and/or the charge air, and having an exhaust gas recirculation valve, by means of which the amount of returned exhaust gas and/or charge air can be regulated. To provide an exhaust gas recirculation system, which has a simple structure and can be manufactured cost-effectively, the exhaust gas recirculation valve is connectable between the removal point and the heat exchanger.

Abstract: 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.

Abstract: An exhaust gas recirculation system is provided that includes an internal combustion engine, which is supplied with exhaust gas, diverted at a removal point and returned via a return point and/or charge air, having a heat exchanger arranged between the removal point and the return point, for the returned exhaust gas and/or the charge air, and having an exhaust gas recirculation valve, by means of which the amount of returned exhaust gas and/or charge air can be regulated. To provide an exhaust gas recirculation system, which has a simple structure and can be manufactured cost-effectively, the exhaust gas recirculation valve is connectable between the removal point and the heat exchanger.

Abstract: An exhaust-gas cooler for an internal combustion engine has a plurality of flow channels which conduct exhaust gas. The flow channels are arranged within a housing (1) and are in thermal exchange with a fluid for cooling the exhaust gas. At least one filter member (3) for filtering particles from the exhaust-gas flow is integrated structurally into the exhaust-gas cooler.

Abstract: 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.

Abstract: The invention concerns a condenser consisting of stacked plates (2) provided each with a raised peripheral edge (3) in sealed assembly to define flow channels between the plates for a refrigerating fluid (F1) and a cooling fluid (F2). The plates comprise communicating passageways (124) for the passage of the refrigerating fluid and the cooling fluid from one flow channel to the other. Annular ducts (122) are provided opposite the communicating passageways to prevent the fluids from being mixed. A bottle (100) is interposed between a cooling section (94) and sub-cooling section (96). The invention is applicable to motor vehicles.

Abstract: The invention relates to a hydraulic circuit element (20) 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 (22) having two ends and at least one tip (24) at one of said ends of the tube (22), said tip having at least one communicating passage (28b) that defines the path of the first fluid. The invention also relates to a heat exchanger obtained by stacking circuit elements (20). Such a heat exchanger can be used in particular in motor vehicles.

Abstract: 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 (102) connected to at least one inlet manifold (58, 64, 66) and to at least one outlet manifold (60, 62, 68), these tubes forming a heat exchange surface. It comprises surface distribution means (110, 42, 44) 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 (52), a low temperature fixed section (54) and an intermediate section that can be allocated wholly or partly to the sections (52 and 54).

Abstract: The invention concerns a condenser consisting of stacked plates (2) provided each with a raised peripheral edge (3) in sealed assembly to define flow channels between the plates for a refrigerating fluid (F1) and a cooling fluid (F2). he plates comprise communicating passageways (124) for the passage of the refrigerating fluid and the cooling fluid from one flow channel to the other. Annular ducts (122) are provided opposite the communicating passageways to prevent the fluids from being mixed. A bottle (100) is interposed between a cooling section (94) and sub-cooling section (96). The invention is applicable to motor vehicles.

Abstract: 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 (102) connected to at least one inlet manifold (58, 64, 66) and to at least one outlet manifold (60, 62, 68), these tubes forming a heat exchange surface. It comprises surface distribution means (110, 42, 44) 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 (52), a low temperature fixed section (54) and an intermediate section that can be allocated wholly or partly to the sections (52 and 54).

Abstract: The invention relates to a hydraulic circuit element (20) 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 (22) having two ends and at least one tip (24) at one of said ends of the tube (22), said tip having at least one communicating passage (28b) that defines the path of the first fluid. The invention also relates to a heat exchanger obtained by stacking circuit elements (20). Such a heat exchanger can be used in particular in motor vehicles.