Mahle International Gmbh

Rudiger Knauss

Robert Sendor

Bernhard Schwalk

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

Valve arrangement for an exhaust gas recirculation device

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

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Kernen i.R., Germany

Rudiger Knauss