Iveco and Fiat Powertrains have announced a Euro VI engine line which meets the emissions standards without using Exhaust Gas Recirculation (EGR). Instead the new engine range relies on Selective Catalytic Reduction (SCR) and a Diesel Particulate Filter (DPF) to meet NOx limits.
Fiat Powertrains' (FTP) new SCR technology will be introduced onto the new Cursor and Tector engine ranges for heavy-duty trucks and buses.
Alfredo Altavilla, Iveco Chief Executive Officer, said: "The technology that reduces fuel consumption and additional operating costs to their minimum is the correct technical choice. FPT Industrial's 'SCR Only' exhaust after-treatment fulfils this important need.
"It is clear that Euro VI vehicles will be more expensive; technology has a price and a value. We will introduce suitably equipped vehicles when our customers ask us to do so."
The new technology includes the following features, according to FTP:
• Optimised fluid-dynamics modelling 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 ageing 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.
Euro VI emissions norms will apply to heavy-duty vehicles from the
from 1st January 2014.
