Mahle International Gmbh

Robert Sendor

Bernhard Schwalk

Rudiger Knauss

Andreas Grüner

Martin Klöpfer

Rüdiger Knauss

Rüdiger Knauß

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 ().

Exhaust gas recirculation device

The invention relates to a filter-cooler combination for liquids. The filter is a screw-type cartridge that comprises inlet and outlet openings on a front face and that can be detachably screwed to a connecting element having first connecting channels that are associated with the inlet and outlet openings by means of a central thread, while being radially sealed on the front face; the connecting element comprises the cooler and is provided with second connecting channels for the inlet and outlet channels of the coolant leading towards and away, from the filter-cooler combination, and with third connecting channels for the inlet and outlet channels of the liquid to be filtered leading towards and away, from the filter-cooler combination; the connecting element can be detachably connected to a base carrying the connecting element while the third connecting channels are associated with connecting channels of the base.

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Wolfratshausen, Germany

Robert Sendor