REDUCTANT DELIVERY SYSTEM, EXHAUST TREATMENT SYSTEM AND VEHICLE COMPRISING THE EXHAUST TREATMENT SYSTEM

Patentradars sammanfattning

TRATON AB's invention addresses the formation of sub-23 nm solid reductant particles created during conventional spray-dosing of urea-based reductants into SCR exhaust aftertreatment systems. The core novelty is a spray transforming device interposed between the reductant doser and the evaporator's evaporating surfaces, which converts the sprayed reductant into liquid form and distributes it as a continuous wall film rather than airborne droplets. This upstream elimination of particle formation is contrasted with downstream filtration approaches, avoiding associated back-pressure and fuel consumption penalties. The system is claimed for both single-SCR (Euro VI-type) and dual-SCR architectures and is applicable to heavy commercial vehicles.

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