PM-reducing engine

  • 11-Jul-2008 01:12 EDT
RGB_31 QSB.jpg


Cummins offers a next-generation QSB6.7 engine featuring a fully integrated air intake to exhaust aftertreatment system. The engine is poised to meet EPA Tier 4 Interim and European Stage IIIB off-highway emissions regulations in January 2011. The 6.7-L QSB engine incorporates the company’s direct-flow air-filtration system and particulate filter exhaust aftertreatment to achieve a 90% reduction in particulate matter and a 45% reduction in oxides of nitrogen. Power output has increased from 275 hp (205 kW) to a top rating of 300 hp (224 kW), typical of a larger-displacement engine. Other benefits include a rugged design and compact profile.

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