Up and Cummins
Engine maker adds a green choice to its range as emission standards tighten
stick with ISX and Signature engines running exhaust gas recirculation but not SCR can rest assured: Cummins will continue to offer EGR-only versions well into the future.
SCR systems feature a special catalyst that reduces the amount of nitrous oxide in the exhaust using a chemical reaction that occurs when a urea-based exhaust treatment AdBlue, is added. Running AdBlue means the operator has to pay for AdBlue fluid, AdBlue is not available everywhere and chassis space can be taken up by AdBlue tanks.
Cummins will have the new SCR ISXe5 engine alongside its existing EGR-only models to give operators better choice.
‘‘ The ISXe5 is joining our 15.0-litre product line to provide a further technology choice,’’ says Cummins South Pacific automotive general manager Sean McLean.
‘‘ We will continue to see strong demand for our ISX and Signature EGR engines, based on feedback we have received from customers.’’
The ISXe5 uses the same base engine as the regular ISX but features SCR, a highpressure common rail fuel injection system (with injection pressures of more than 30,000psi), single overhead camshaft and wastegate turbocharger. The new engines’ outputs are from 336kW (450hp) to 448kW (600hp).
Early adopters and those seeking a green image are likely to be the first to take up the SCR, but it will be fitted to almost all heavy-duty engines in Australia within five years.
Engine makers are expected to need SCR to meet the new emissions standard, loosely based on Euro IV, due to be introduced in 2016 or 2017.
‘‘ By the time ADR80-04 is introduced we will have had extensive experience with these technologies under Australian conditions,’’ McLean says.