FIELD: engines.
SUBSTANCE: invention relates to exhaust system for automotive internal combustion engine. Exhaust system for automotive internal combustion engine running on lean mixtures, which releases nitrogen oxides (NOx) and solid particles (PM). System comprises a NOx reduction catalyst for reducing NOx in presence of a nitrogen-containing reducing agent, means for introducing nitrogen-containing reducing agent into exhaust gas stream, a filter for removing PM from exhaust gas flowing in exhaust system, and exhaust gas recycling (EGR) loop of low pressure for connection of exhaust system downstream of filter to engine air intake. EGR loop contains an ammonia oxidation catalyst.
EFFECT: technical result is ensuring effective reduction of emissions of NOx of internal combustion engine, reduced concentration of ammonia.
12 cl, 1 dwg
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