The engines, each equipped with FPT Industrial “SCR only” technology, will feature optimized combustion and after-treatment systems.
The new regulation will come into effect on all new heavy commercial vehicles and buses registered from January 1st, 2014. Significant changes include an 80 percent reduction n NOx over Euro V, the introduction of an ammonia emission limit and enhanced emissions durability requirements of up to 700,000 km or 7 years for the largest vehicles.
“Our activity is constantly aimed to increase customer productivity and emissions reduction; that is why we take into consideration every solution enabling us to reach these targets. Actually, the ‘SCR Only’ approach is the evidence of our technological leadership and commitment to satisfy the needs of a more and more demanding market,” said FPT Industrial CEO, Giovanni Bartoli.
The “SCR Only” system that Iveco is pinning all of its hopes on sees the introduction of new generation after-treatment hardware that is the result of intensive research activities by FPT Industrial protected by a number of significant patented solutions:
- Optimized fluid-dynamics modeling of exhaust gas and AdBlue injection on SCR catalysts.
- Feed forward control logic to enable precise AdBlue dosing in order to abate incoming sensed NOx emissions.
- Ammonia and NOx sensor technology for extremely accurate exhaust gas sensing, enabling adaptive AdBlue dosing to compensate for any aging of the SCR catalyst.
- Insulated tube turbulence mixer technology to allow a homogeneous urea hydrolysis and distribution in the exhaust gas stream by introducing a swirling motion.
“Key to the optimization of combustion efficiency is high mean effective cylinder pressure and high injector nozzle pressures. To achieve these aims, important changes to the crankcase and cylinder head designs incorporate increased structural rigidity, higher coolant flow capacity and increased swept volume,” Iveco says.
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