Exhaust system for an internal combustion engine

摘要

Exhaust gas installation comprises an exhaust gas system (2), a selective catalytic reduction (SCR) catalyst system (3), an injection system (4) arranged in the exhaust gas system upstream of the catalyst system for injecting an aqueous urea solution into the system and a sump (15) arranged in the pipe between the injection system and the catalyst system and having a collecting volume (16) for receiving condensation. Preferred Features: The sump is formed in a housing (14) containing the catalyst system or is formed in an exhaust gas pipe (20) of the exhaust gas system leading to a housing containing the catalyst system.