Abgasnachbehandlungssystem mit optimierter Abgasanstroemung

The system has a cylinder with an entry area (3) for supplying exhaust gases and a housing covering a main channel (5) such that a chamber is formed between the housing and the main channel. An additional channel (8) runs transverse to flow direction and tangential to the main channel, so that the gases supplied by the additional channel flows via the main channel in a spiral form to mix with the gases supplied by the main channel.