MIXING SYSTEM FOR AN EXHAUST GAS AFTER-TREATMENT ARRANGEMENT

摘要

The mixing system (1) comprises: a mixing chamber (2) having a longitudinal axis (3), in which exhaust gases can flow towards an outlet; a nozzle designed to inject a fluid inside the mixing chamber from an injection inlet arranged in a wall of the mixing system, along a main injection direction; a distribution device (6) coupled to the mixing chamber upstream from said mixing chamber, said distribution device having an inlet from which the whole flow of exhaust gases can enter the distribution device and comprising deflecting means (20a, 20b, 20c) arranged to divide the whole flow of exhaust gases into N subflows (F1, F2, F3), each subflow entering the mixing chamber (2) substantially tangentially through a corresponding peripheral inlet (26a, 26b, 26c), the N peripheral inlets being substantially regularly angularly spaced around the longitudinal axis (3) of said mixing chamber (2).