Emission characteristics influencing method for internal-combustion engine, involves dividing exhaust gas stream, guiding one of divided streams, past guiding other divided stream, again combining streams and guiding combined stream

摘要

The method involves dividing exhaust gas stream (E) into two exhaust gas-partial streams (TS1, TS2) using a flow divider (ST1), where the exhaust gas stream is discharged from an internal-combustion engine. The exhaust gas-partial stream (TS1) is guided by three catalyzers (K11-K13), where the catalyzers are separated from each other. The exhaust gas-partial stream (TS2) is past guided at the catalyzers. The exhaust gas-partial streams are again combined at a flow divider (ST2) and the combined exhaust gas stream is guided through an additional catalyzer (KS). An independent claim is also included for an internal-combustion engine emission characteristics influencing device comprising catalyzers.