Eberspächer Exhaust Technology Gmbh & Co. Kg

Fabian Frobenius

Gerd Gaiser

Markus Birgler

Bernd Weller

Matthias Feuerbach

Marc Hartmann

Jürgen Schweizer

Rouven Egger

Dimitri Penner

Matthias Hense

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 thermoelectric generator includes a first channel for passing a warm fluid along a direction of flow, a second channel for passing a cold fluid, a plurality of thermocouple elements disposed along the direction of flow between the first and second channels, a first member includes portions disposed between the elements and the first channel and associated with the individual elements for providing a heat coupling between the associated element and the first channel, and a second member including portions disposed between the elements and the second channel and associated with the individual elements for providing a heat coupling between the associated element and the second channel. The sum of the thermal resistances of those portions that are associated with a first element positioned upstream of a second element is bigger than the sum of the thermal resistances of those portions that are associated with the second element.

Thermoelectric generator for exhaust systems and contact member for a thermoelectric generator

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 connected to one another fluidically via a primary path () carrying a primary medium through ring channel () and via a bypass path () carrying the primary medium through the tube (). A control device () controls the flow of the primary medium through the primary path () and the bypass path (). A secondary inlet () and a secondary outlet () are connected to one another fluidically via at least two secondary paths () for carrying a secondary medium. The primary path () is coupled with the secondary paths () in a heat-transferring manner with the media separated from one another.

Heat exchanger

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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Esslingen, Germany

Fabian Frobenius