The emission solutions division of Cummins Inc. is rolling out a new aftertreatment system designed to help truck makers comply with the tighter greenhouse-gas standards coming in 2017.
The EcoFit Single Module is 60% smaller and 40% lighter than Cummins’ current selective catalytic reduction system, the company said. It combines the functions of an SCR system and a diesel particulate filter.
SCR uses diesel exhaust fluid, a urea and water solution, to reduce nitrogen oxide emission. While NOx is not a greenhouse gas, Cummins said Single Module’s operating characteristics also should improve fuel mileage.
“The smaller size enables better heat management and retention for improved fuel-economy capability, while the single-pass, exhaust-flow design delivers low back pressure,” the company said.
Truck makers should benefit from Single Module's smaller size, the company said, because that allows for simpler chassis integration. The urea dosing system will not require engine coolant lines to and from the DEF injector.
Also at the Mid-America Trucking Show, Cummins will unveil a two-stage turbocharger for use in light-duty trucks.
The turbocharger can be seen on a Nissan Titan XD pickup truck with Cummins' 5-liter, V8 engine.
Cummins is based in Columbus, Indiana, and publicly traded on the New York Stock Exchange. The company sells more heavy-duty North American truck engines than any other single engine maker.
