Exhaust gas system for cleaning internal combustion engine exhaust gases comprises a reducing agent supply having a hydrogen-producing unit for enriching the exhaust gas with hydrogen

摘要

Exhaust gas system for cleaning exhaust gases of a preferably lean-mix internal combustion engine comprises an exhaust gas line in which a particle filter and an SCR catalyst are arranged in series in the flow direction, and a reducing agent supply dispensing ammonia from the input side of the SCR catalyst into the exhaust gas of the engine. The reducing agent supply has a hydrogen-producing unit (14) for enriching the exhaust gas with hydrogen. Preferred Features: The hydrogen-producing unit is designed as a reformer for reforming the fuel used in the engine. The reducing agent supply has a nitrogen-converting ammonia-producing unit (15) for producing the ammonia dispensed into the exhaust gas.