Abstract: The present invention relates to an exhaust gas cooler (1), in particular for an exhaust gas recirculation system of an internal combustion engine, preferably of a motor vehicle, comprising an exhaust gas inlet (2) which is connected in a communicating manner with an inlet chamber (4), an exhaust gas outlet (3) which is connected in a communicating manner with an outlet chamber (5), a plurality of exhaust gas pipes (7) which are configured as flat pipes, extend parallel to each other through a coolant chamber (8) and are connected in a communicating manner on one side to the inlet chamber (4) and on the other side to the outlet chamber (5), a coolant inlet (9) which is connected in a communicating manner to the coolant chamber (8), and a coolant outlet (10) which is connected in a communicating manner to the coolant chamber (8).

Abstract: The invention relates to a valve arrangement (2) for an exhaust gas recirculation device of an internal combustion engine, especially in a motor vehicle. Said valve arrangement (2) comprises a first valve (9) which is used to control a first gas path (7) and is mobile between an open position, a closed position, and at least one intermediate position. The inventive valve arrangement (2) also comprises a second valve (10) for controlling a second gas path (8) which is separate from the first gas path (7), said second valve being mobile between an open position, a closed position and at least one intermediate position independently from the first valve (9). The valve arrangement (2) also comprises a common housing (6) which contains both valves (9, 10) and through which the two gas paths (7, 8) are guided.

Abstract: The invention relates to an exhaust gas recirculation device (5) for an internal combustion engine (1), especially in a motor vehicle, said device comprising an exhaust gas recirculation line (6) and an exhaust gas cooler (7) which is built into the exhaust gas recirculation line (6) and connected to a cooling circuit (8) operating by means of a liquid coolant. The exhaust gas recirculation cooler (7) comprises a cooler housing (9) which comprises at least one exhaust gas inlet (10), an exhaust gas outlet (11), a coolant inlet (12) and a coolant outlet (13), and through which a coolant flows. In order to be able to improve the adjustment of the cooling power, the exhaust gas recirculation cooler (7) contains, in the cooler housing (9) thereof, a first cooling tube arrangement (14) and a second cooling tube arrangement (15) which enables a larger heating flow between the exhaust gas and the coolant than the first cooling tube arrangement (14).

Abstract: The present invention relates to an exhaust gas cooler (1), in particular for an exhaust gas recirculation system of an internal combustion engine, preferably of a motor vehicle, comprising an exhaust gas inlet (2) which is connected in a communicating manner with an inlet chamber (4), an exhaust gas outlet (3) which is connected in a communicating manner with an outlet chamber (5), a plurality of exhaust gas pipes (7) which are configured as flat pipes, extend parallel to each other through a coolant chamber (8) and are connected in a communicating manner on one side to the inlet chamber (4) and on the other side to the outlet chamber (5), a coolant inlet (9) which is connected in a communicating manner to the coolant chamber (8), and a coolant outlet (10) which is connected in a communicating manner to the coolant chamber (8).

Abstract: The invention relates to a valve arrangement (2) for an exhaust gas recirculation device of an internal combustion engine, especially in a motor vehicle. Said valve arrangement (2) comprises a first valve (9) which is used to control a first gas path (7) and is mobile between an open position, a closed position, and at least one intermediate position. The inventive valve arrangement (2) also comprises a second valve (10) for controlling a second gas path (8) which is separate from the first gas path (7), said second valve being mobile between an open position, a closed position and at least one intermediate position independently from the first valve (9). The valve arrangement (2) also comprises a common housing (6) which contains both valves (9, 10) and through which the two gas paths (7, 8) are guided.

Abstract: The present invention relates to a cooling system (1) for an internal combustion engine, in particular an exhaust gas cooling system in a motor vehicle, having a housing (2) in which a heat transmission device (4) is arranged in a first canal (3). The housing (2) is configured as a metal pressure die-cast housing and has according to the invention an integrated second canal (6) that is formed by housing contours (5, 5?), said second canal being configured as a bypass canal and bypassing the heat transmission device (4).

Abstract: The present invention relates to an internal combustion engine 1, in particular in a motor vehicle, comprising an engine block 2 that contains a plurality of combustion chambers 3, a fresh-air apparatus 5, and exhaust-emission system 10, and an exhaust-gas recirculation system 15. A purification system 29 for removing liquid or solid particles from the recirculated exhaust gas reduces the risk of damage to components of the fresh-air apparatus or of the exhaust-gas recirculation system.

Abstract: The invention relates to an exhaust gas recirculation device (5) for an internal combustion engine (1), especially in a motor vehicle, said device comprising an exhaust gas recirculation line (6) and an exhaust gas cooler (7) which is built into the exhaust gas recirculation line (6) and connected to a cooling circuit (8) operating by means of a liquid coolant. The exhaust gas recirculation cooler (7) comprises a cooler housing (9) which comprises at least one exhaust gas inlet (10), an exhaust gas outlet (11), a coolant inlet (12) and a coolant outlet (13), and through which a coolant flows. In order to be able to improve the adjustment of the cooling power, the exhaust gas recirculation cooler (7) contains, in the cooler housing (9) thereof, a first cooling tube arrangement (14) and a second cooling tube arrangement (15) which enables a larger heating flow between the exhaust gas and the coolant than the first cooling tube arrangement (14).