EXHAUST TRIM OF AN INTERNAL COMBUSTION ENGINE, IN PARTICULAR DIESEL ENGINE OF A COMMERCIAL VEHICLE LIKE VEHICLE OR OMNIBUS, WITH INTEGRATED EXHAUST GAS TREATMENT AND SOUND ABSORBING DEVICES

摘要

Exhaust gas pipe comprises a front silencer (2) and a main silencer (3) arranged in the exhaust gas line (1); and a device for depositing and oxidizing very fine particles from the exhaust gas and consisting of an oxidation catalyst (4) and a filter-less particle remover/oxidizer (5) arranged downstream. The main silencer is delimited by a front wall (6), a rear wall (7) and a peripheral wall (8) and divided into an inlet chamber (10) and an outlet chamber (11). The main silencer is formed as an endless pipe and has outlet openings (15) on its rear wall and on its peripheral wall. The oxidation catalyst is either built into the front silencer or before or after it in the exhaust gas line (1). Preferred Features: The particle remover/oxidizer is fixed with its housing (12) in an axis-parallel manner to the longitudinal axis of the main silencer gas-tight in an intermediate wall (9) between the inlet chamber and the outlet chamber and optionally a parallel non gas-tight holding wall (13) so that the front and rear walls lie at a distance from each other.