13 February 2006

Cummins Inc. announced that its on-highway engine product line is ready to meet the US Environmental Protection Agency (EPA) and California Air Resources Board (ARB) 2007 emission standards.

Cummins 2007 engines will be based on the existing product line. Cummins will continue to use cooled Exhaust Gas Recirculation (EGR) technology with the addition of exhaust aftertreatment provided by the integrated Cummins Particulate Filter and a crankcase ventilation system. This technology is consistent on all Cummins on-highway diesel engines for North America, including the Heavy-Duty ISX and ISM, as well as the MidRange ISL, ISC and ISB engines.

The entire line features integrated electronic controls, with a single ECM (Electronic Control Module) that controls the engine and the regeneration of the particulate filter. All engines will use the sliding-nozzle Variable Geometry Turbocharger (VG Turbo), which features an electric actuator for 2007 with faster response and improved precision in adjusting airflow to the engine.

The Cummins Particulate Filter includes a diesel oxidation catalyst (DOC) and a diesel particulate filter to reduce particulate matter emissions by 90%. The crankcase ventilation system features the Fleetguard Enviroguard™ coalescing filter, which captures and filters crankcase emissions, and returns oil directly to the sump.

Since their introduction in October 2002, Cummins delivered over 300,000 cooled-EGR equipped engines, which accumulated over 30 billion miles on the roads.

Source: Cummins (press release)