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Advanced EGR Control Concept for HD-Truck-Engines

Journal Article
ISSN: 1946-391X, e-ISSN: 1946-3928
Published April 14, 2008 by SAE International in United States
Advanced EGR Control Concept for HD-Truck-Engines
Citation: Broda, A., Rieping, M., Eilts, P., Elsäßer, A. et al., "Advanced EGR Control Concept for HD-Truck-Engines," SAE Int. J. Commer. Veh. 1(1):152-161, 2009,
Language: English


Exhaust Gas Recirculation (EGR) is a proven method for in-cylinder NOx reduction. A multitude of scientific work has focused on the temperature-lowering effect of exhaust gases.
The disadvantage of a turbocharged heavy duty diesel truck engine is a high positive pressure gradient between intake and exhaust which complicates a High Pressure Exhaust Gas Recirculation (HP-EGR). In this study, a new technology will be presented to introduce EGR in the high pressure loop of a turbocharged HD-Truck engine without penalty of fuel economy caused by the increase of pumping losses.