Eberspächer Exhaust Technology Gmbh & Co. Kg

Bernd Weller

Gerd Gaiser

Fabian Frobenius

Markus Birgler

Matthias Feuerbach

Marc Hartmann

Jürgen Schweizer

Dimitri Penner

Rouven Egger

A process for manufacturing an exhaust system for an internal combustion engine includes the steps: a) providing at least one exhaust gas-carrying component () for the exhaust system (); b) applying a basic material layer () to at least one area of a surface of at least one of the exhaust gas-carrying components () in a high-temperature application process; and c) applying a catalytically active material layer () to the basic material layer () in a low-temperature application process.

Process for manufacturing an exhaust system and exhaust system

An exhaust system for an internal combustion engine, especially in a vehicle, includes an exhaust gas flow duct (), a reactant release device () for the release of reactant (R) into the exhaust gas flow duct () and a catalytic converter device () downstream of the reactant release device (). At least one part of a component surface is provided by a hydrophilic material () of at least one exhaust gas-carrying component () positioned in the reactant flow path or/and defining this reactant flow path, or/and at least one part of the component surface is provided by a hydrophobic material () of at least one exhaust gas-carrying component () positioned in the reactant flow path.

Exhaust system

An exhaust system for an internal combustion engine, especially for a vehicle, includes an exhaust gas-carrying pipe () and a reactant release unit () for releasing reactant (R) into exhaust gas (A) flowing in the exhaust gas-carrying pipe (). The reactant release unit () includes a reactant injection unit (), a reactant delivery unit () delivering reactant (R) from a reactant reservoir to the reactant injection unit () and a heating unit () for heating reactant (R) being delivered to the reactant injection unit (). The heating unit () includes an exhaust gas/reactant heat exchanger unit () for transferring heat, being transported in the exhaust gas (A), to the reactant (R).

Exhaust system for an internal combustion engine and method for operating an exhaust system

A heat exchanger () includes a housing (), which contains a tube () and has a jacket (), which surrounds the tube () while forming a ring channel (). A primary inlet () and a primary outlet () are fluidically connected with one another via a primary path () carrying a primary medium through the ring channel () and via a bypass path () carrying the primary medium through the tube (). A control () controls the flow of the primary medium through the primary path () and through the bypass path (). At least two secondary inlets () and two secondary outlets () are fluidically connected with one another via at least two secondary paths () for carrying at least one secondary medium. The primary path () is coupled with the secondary paths () in a heat-transferring manner and such that the media are separated from one another.

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Durlangen, Germany

Bernd Weller