Cummins has signalled its intention to develop a US 2010
compliant heavy-duty engine without the use of an SCR
aftertreatment system. The engine maker believes that it can use
EGR to meet emissions targets without sacrificing power, torque and
fuel efficiency.
Cummins' new engine range will use EGR, common-rail technology,
extra-high pressure injection (XPI), variable geometry
turbocharging (VGT) and DPF, essentially a modified version of the
present US 2007 engine. However, this is not a 'whole line'
solution, as Cummins will be using SCR coupled with EGR across its
range of medium-duty engines.























