Cummins’ Q-series diesels will meet federal Tier 4-Final and Euro IV limits in 2014 with exhaust aftertreatment systems.
Cummins’ Q-series diesels will meet federal Tier 4-Final and Euro IV limits in 2014 with exhaust aftertreatment systems. The QSL9, with up to 400 horsepower, gets a Cummins Compact Catalyst and selective catalytic reduction, for almost emissions-free exhaust. This CCC-SCR system, in scalable sizes, also goes on QSB3.3, 4.5 and 6.7 models, rated at 75 to 400 horsepower. The QSX15 and 11.9 engines will use SCR and a diesel particulate filter. The 15’s top rating is 675 horsepower, 75 more than the Tier 4-Interim model, and the 11.9 goes to 525 horsepower. Tanks for SCR’s diesel exhaust fluid will vary in size by OEM.
According to Cummins Turbo Technologies, a new addition to its existing range of large turbochargers for engines with displacements of 16 liters and more incorporates new technologies capable of improving overall turbocharger efficiency of typical applications by up to 10 percent.
Two 13.5L generator drive diesel engines for emergency stationary gen-set applications are available in the 350- to 500-kWe range.
Cummins says its four-cylinder QSB3.3 and QSB4.5 engines (75- to 160-horsepower) will meet EPA Tier 4 Interim emissions restrictions in 2012 with fuel efficiency improvements up to 5 percent.
Cummins Filtration introduces Fleetguard ES Compleat Glycerin, a heavy duty engine coolant that substitutes glycerin for ethylene glycol (EG) or propylene glycol (PG). Glycerin is derived from renewable sources, the primary byproduct of manufacturing biodiesel.