Robert Boschgmbh

Jochen Winkler

Martin Kiontke

Achim Knittel

Stephan Pohl

Hans-Peter Koch

Andreas Harzer

Stefan Schuerg

Torsten Bober

Gellert Elsoe

Thilo Kreher

Markus-Ulrich Wehner

Thorsten Rankel

Thorsten Sommer

Martin Murst

Claudius Henkel

Wolfgang Ballerstedt

Wolfgang Knittel

Ingo Bleich

Norbert Eichelsdoerfer

The invention relates to a metering device () for introducing a process liquid or auxiliary agent into a flow pipe of an internal combustion engine, in particular for introducing a reducing agent into an exhaust gas pipe (). Said device comprises an injection valve () and a receiving device () comprising a heat sink element () and a cover element (). The injection valve () and the receiving device () are combined to form a structural unit by means of bonded connections ().

Metering module for metering a reducing agent

The invention relates to a metering module () for metering a reduction means in an exhaust system of an internal combustion engine. The metering module () comprises at least one cooling element () through which cooling fluid flows. The metering module () has a cooled connection piece () that is actively cooled by the cooling fluid.

Cooling device for connection piece

The invention relates to a device for cooling a metering module () for dispensing a process liquid/auxiliary agent into the exhaust gas system of an internal combustion engine. The metering module () comprises a housing () with a plurality of housing sections (), (), (), (). A first housing section (), (), on which a supply line () for the process liquid/auxiliary agent is located, is situated in a region () of the metering module () that is exposed to varying temperatures, said section being made of metal.

Metering module with high-temperature resistance

The invention relates to a metering module () including a metering valve (). The metering module further includes a cooling device through which a cooling fluid flows. Said cooling device comprises a first chamber () that has a cooling fluid inlet (). The metering valve () has an additional cooling member () containing a second chamber () which is hydraulically connected to the first chamber () via at least one opening ().

Device for cooling a metering valve

The invention relates to a dosing module () for metering a reducing agent into an exhaust system of an internal combustion engine. Said dosing module () comprises at least one cooling member () through which a cooling fluid flows that is used to cool the internal combustion engine. An electric contact () is located in the top region of the dosing module (). The dosing module () is enclosed in a full housing () that comprises an upper and a lower cooling member () through which a directed cooling fluid stream () flows that runs from the valve tip region () in the direction of the electric contact ().

Water-cooled dosing module

A method for ascertaining the leakage from injection systems is proposed which is fully automatable and which furnishes unambiguous measurement results, which make a simple decision possible about the tightness of an injection system, in particular of an injector or of an injection valve.

Method, apparatus, and computer program for measuring the leakage from fuel injection systems for internal combustion engine

A method for manufacturing a pressed part from a soft magnetic composite material. A starting mixture is provided that includes an iron powder and an auxiliary pressing agent. The starting mixture is pressed to form a pressed part and annealed at temperatures between 380&#xb0; C. and 450&#xb0; C. in a mixture of an inert gas and oxygen that has an oxygen concentration between 1% and 10% by volume. A second embodiment of a method for manufacturing a pressed part from a soft magnetic composite material in which a starting mixture is provided that includes an iron powder and an auxiliary pressing agent. The starting mixture is pressed to form a pressed part, annealed, and then postformed and re-annealed.

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Esslingen, Germany

Jochen Winkler