Exhaust system for turbo-charged heat engine, has rectifier rectifying flow of clean exhaust gas in exhaust conduit before exhaust gas enters into oxidation catalyst, for breaking turbulent flow generated by rotation of turbine

摘要

The system has a fuel injector (8) arranged between a turbine (6) of a turbocharger and a catalytic anti-pollution unit i.e. oxidation catalyst (12), along an exhaust conduit (4). A straightener (16) straightens flow of clean exhaust gas in the exhaust conduit before the exhaust gas enters into the oxidation catalyst, for breaking a turbulent flow generated by the rotation of the turbine. The straightener is arranged between the turbine and a bend of the exhaust conduit in a direction of the oxidation catalyst.