J. Eberspaecher Gmbh & Co. Kg

Eberspächer Exhaust Technology Gmbh & Co. Kg

Purem Gmbh

Andreas Sauer

Marcus Werni

Felix Neumann

Wolfgang Datz

Alexander Kauderer

Simon Krammer

Jan Pallmann

Daniel Manicke

Philip Weinmann

A method welds together two components of an internal combustion engine exhaust system, by resistance welding, to provide greater positioning freedom of two components welded together. A first component is provided with a welding area including an insertion opening edge surrounding an insertion opening. A second component is provided with a welding area including an insertion area to be inserted into the insertion opening. The insertion area is inserted into the insertion opening such that the insertion area is in contact with the first the entire insertion opening edge. An electrical voltage is applied to resistance weld the first component to the second component. The surface () of the insertion area is curved about two axes that are not parallel or is curved about an axis that is parallel to the surface of the insertion area, or/and an insertion surface of the insertion opening edge is located in one plane.

Method for welding together two components, preferably of an exhaust system of an internal combustion engine, by resistance welding

An exhaust system for an internal combustion engine, especially diesel internal combustion engine, includes an exhaust gas flow duct (). At least one exhaust gas treatment unit () is provided in an exhaust gas treatment duct area () of the exhaust gas flow duct (). The exhaust gas treatment duct area () of the exhaust gas flow duct () extends, in at least some areas, in an insulation volume (), through which exhaust gas discharged from the exhaust gas treatment duct area () can flow.

Exhaust system

The present invention relates to an exhaust gas treatment device for an exhaust system of an internal combustion engine, more preferably of a road vehicle with a housing, in which at least one exhaust gas treatment element is arranged and mounted by means of a bearing mat and with an outlet pipe which is fluidically connected to an outlet chamber formed in the housing. The risk of a contamination of the bearing mat with water can be reduced with a separating bottom which is arranged in the housing and separates the outlet chamber from a collecting chamber. The separating bottom includes several passage openings through which the outlet chamber is fluidically connected to the collecting chamber and which are each enclosed by a collar protruding into the outlet chamber.

Exhaust gas treatment device

The present invention relates to an exhaust gas treatment unit for an exhaust system of a combustion engine, in particular of a motor vehicle, includes a housing, a plurality of exhaust gas treatment elements, which are arranged in the housing and through which a parallel flow is possible. The unit further includes an outlet nozzle, which penetrates a side face of the housing, and an outlet space disposed in the housing, whereby the outlet of at least one of the exhaust gas treatment elements opens into the outlet space. The rigidity and/or effectiveness of the exhaust gas treatment unit can be improved by means of a funnel body disposed in the outlet space, and comprising a funnel surface which is permeable to exhaust gas. The funnel body connects an outlet end of one of the exhaust gas treatment elements with the outlet nozzle.

Exhaust gas treatment unit

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Eislingen, Germany

Andreas Sauer