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.
Two 13.5L generator drive diesel engines for emergency stationary gen-set applications are available in the 350- to 500-kWe range.
Capable of producing up to 512 horsepower, Cummins QSM12 six-cylinder, 12-liter engine is designed, says the manufacturer, with a compact envelope that results in a power-to-weight ratio some 30 percent more favorable than the class average for engines with similar power ranges.
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.