Part 1

EVOLUTION OF KEY TECHNOLOGIESMaking the metal work harder Making the metal work smarter Making the metal work cleanerNaturallyAspiratedTurboCharging1978NOx = 10g/HP-hrParticulate = 1.0g/HP-hrAir-Air Charge CoolingElectronics• Full Authority• Smart Actuators• Vehicle Integration2010NOx = 0.2g/HP-hrParticulate = 0.01g/HP-hr(On – Highway only)Air Handling, FuelSystems• 2-Stage T/C• Common rail• DPF/DOC1950s 1960s 1970s 1980s 1990s 2000s 2010sMaking engines cleaner while improving fuel efficiencyEGR – Exhaust Gas Recirculation, VGT - variable geometry turbo-charging, DPF – Diesel Particulate Filter, DOC – Diesel Oxidation Catalyst, SCR – Selective Catalytic ReductionCopyright © 2000-2012 Cummins Inc. All rights reserved. Presented at the Shell Technology Forum, October 2012