EXHAUST GAS SYSTEM FOR AN INTERNAL COMBUSTION ENGINE AND METHOD FOR OPERATING SUCH AN EXHAUST GAS SYSTEM

An exhaust system for an internal combustion engine, especially for a vehicle, includes an exhaust gas-carrying pipe (12) and a reactant release unit (14) for releasing reactant (R) into exhaust gas (A) flowing in the exhaust gas-carrying pipe (12). The reactant release unit (14) includes a reactant...

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Bibliographische Detailangaben
Hauptverfasser: Frobenius, Fabian, Gaiser, Gerd, Weller, Bernd
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:An exhaust system for an internal combustion engine, especially for a vehicle, includes an exhaust gas-carrying pipe (12) and a reactant release unit (14) for releasing reactant (R) into exhaust gas (A) flowing in the exhaust gas-carrying pipe (12). The reactant release unit (14) includes a reactant injection unit (20), a reactant delivery unit (18) delivering reactant (R) from a reactant reservoir to the reactant injection unit (20) and a heating unit (24) for heating reactant (R) being delivered to the reactant injection unit (20). The heating unit (24) includes an exhaust gas/reactant heat exchanger unit (26) for transferring heat, being transported in the exhaust gas (A), to the reactant (R).