Exhaust gas pipe used for a diesel engine of a commercial vehicle comprises a main silencer delimited by a front wall, a rear wall and a peripheral wall and divided into an inlet chamber and an outlet chamber

摘要

Exhaust gas pipe comprises a main silencer (2) delimited by a front wall (3), a rear wall (4) and a peripheral wall (5) and divided into an inlet chamber (7) and an outlet chamber (8). Parallel exhaust gas treatment modules (10) communicating with the inlet chamber on one side and with the outlet chamber on the other side are built into the main silencer. The main silencer is formed as an endless pipe and has outlet openings (13) on its rear wall on the exhaust gas outlet side and/or the end region of its peripheral wall on the exhaust gas outlet side. An oxidation catalyst (15) for increasing the NO2 content of the nitrogen oxide in the exhaust gas is built into front silencer (14). Preferred Features: A flow deviating element (34) is arranged on the main silencer of each outlet opening or a group of outlet openings.