23 May 2011
Iveco and FPT Industrial announced their readiness to meet Euro VI emission standards by means of urea-SCR (selective catalytic reduction) technology, without exhaust gas recirculation (EGR). The new “SCR only” technology, which features a very high NOx conversion efficiency of over 95% (compared to 80-85% in most conventional SCR systems), will be introduced on Iveco’s new Cursor and Tector engine ranges for heavy-duty trucks and buses. The engines are also equipped with diesel particulate filters (DPF) for PM emission control.
The Euro VI exhaust emission regulations, which apply from 2013/2014 (new types/all registrations), establish ESC/ETC emission limits of 0.4 g/kWh for NOx and 0.01 g/kWh for PM. Euro VI type approval testing will be conducted, for the first time ever, over the world harmonized test cycle, with the corresponding WHSC/WHTC emission limits to be defined by the Euro VI implementing regulation, still under development. The implementing regulation will also include a particle number limit, to be met in addition to the mass-based limit.
The new Tector engine range includes a 4- and a 6-cylinder model with a displacement of 4.5 and 6.7 L, respectively, and power ratings from 118 to 235 kW. The Cursor line-up includes three 6-cylinder models with displacements from 8.7 to 12.9 L and power ratings ranging from 228 to 412 kW.