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Euro-4 beckons ISMe
Page 16
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• by Brian Weatherby
Cummins is taking its 11-litre ISMe engine to Euro-4 with a selective catalytic reduction exhaust after-treatment and liquid urea injection. The engine maker says its combined engine and after-treatment package— marketed under the banner of 'Integrated Emissions Management' or IEM—will offer a 5% improvement in fuel efficiency and 10% more power compared to current Euro-3 engines, it will also deliver the necessary reductions in NOx and particulates required by Euro-4 when it becomes law in October 2005.
Launched at last month's CV Show, Cummins says IEM is a -future-proof system that can move forward to Euro-5 without major change". Using the latest engine modifications, together with the urea injection and SCR catalyst (see tint box), Cummins says it has cut NOx by 30%, particulates by 80% and has also cut the levels of unburned hydrocarbons and carbon monoxide. It also says the IEM system "is designed to be compatible with all engines in its current Euro-3 range".
While environmentalists should welcome the reduction in exhaust emissions, UK truck operators are far more likely to be attracted by the ISMe's promise of lower fuel bills.
According to Simon Guest, planning leader for Cummins' IEM system, an operator running a typical tractor covering 100,000 miles a year, with a fuel bill of about 240,000 could save up to £2,000 a year with a Euro4 IEM 11-litre diesel.
"Added to this will be the extended oil-change intervals," says Guest.