Patent ID: 8756918
Filing Date: 2014-06-24
Classification: F01N,Y02A,Y02T

Abstract:
1. Dosing module ( 1 ) for dosing a urea-based reducing agent into a gas exhaust stream generated by a combustion engine and addressed to an after-treatment system ( 30 ), said dosing module ( 1 ) comprising: a dosing housing ( an inlet opening ( a nozzle ( characterizing in that said dosing housing ( 20 ) develops symmetrically along an axis (X) and in that said inlet opening ( 9 ) is axially symmetrically annular about the axis (X) and inclined with respect to said axis (X) of said dosing housing ( 20 ) so as to generate an inclined axially symmetrical annular inlet jet (AJ) about the axis (X) and wherein said nozzle is designed so as to generate, inside said dosing housing ( 20 ), an urea-based reducing agent spray (UWS).