Improved fuel economy, performance and reliability over today’s engines were all promised by Cummins when it unveiled its 2010 engine line-up in advance of the Mid-America Trucking Show.
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The 2010 engines – including a new ISX15 and ISX11.9 – will all use selective catalytic reduction (SCR) in 2010. They’ll also use Cummins XPI fuel system, an enhanced cooled EGR system and a single variable geometry turbocharger, in addition to the SCR system. Cummins will use a copper zeolite material within the SCR catalyst, which it says offers a greater NOx efficiency rate than the more commonly-used iron zeolite alternative.
Cummins officials said the ISX15 will be up to 5% more fuel efficient than today’s engines and up to 9% better than the in-cylinder solution the company was initially pursuing. It reversed paths last August upon discovering that further fuel efficiency gains could be achieved using the recently-discovered copper zeolite, the company explained.
