GAS EXHAUST SYSTEM

摘要

The inventive gas exhaust system, intended for an internal combustion engine, has a plurality of connectors (1) leading to an exhaust manifold (2). The exhaust vent from the exhaust manifold is used as a feed pipe (3) for a catalyst (4). In order to install said catalyst (4) as close as possible to the exhaust manifold (2), it is suggested by the invention that a mixer be provided inside the catalyst (4) housing (6). Said mixer enables the exhaust gas stream arriving at the catalyst (4) via the feed pipe to be homogenized in time and geometry and prevents catalyst elements (8) from being damaged by a non homogeneous gaz stream. The mixer (7) also allows for the unburnt air-fuel mixture to settle inside it (7) instead of burning in catalyst elements (8), thereby preventing the latter from being damaged by suddenly burning deposits.