Performance and emission enhancements of a variable geometry turbocharger on a heavy-duty diesel engine Academic Article uri icon


  • Variable Geometry Turbochargers (VGTs) have emerged in the heavy-duty diesel market with the simultaneous introduction of Exhaust Gas Recirculation (EGR) in meeting emission standards. From a military perspective, VGTs offer considerable promise of improving low speed torque and overall fuel economy. Despite these gains, nitric oxides (NOx) emissions generally increase with increased boost. During times when the military can reduce its environmental impact, VGTs can drive EGR and counter the increase in NO x emissions with relatively minor penalty in particular matter (PM) emissions. This study highlights the performance and emission enhancements enabled by a VGT on a heavy-duty diesel engine. Copyright 2008 Inderscience Enterprises Ltd.

published proceedings


author list (cited authors)

  • Jacobs, T. J., Jagmin, C., Williamson, W. J., Filipi, Z. S., Assanis, D. N., & Bryzik, W.

citation count

  • 4

complete list of authors

  • Jacobs, Timothy J||Jagmin, Chad||Williamson, Wesley J||Filipi, Zoran S||Assanis, Dennis N||Bryzik, Walter

publication date

  • December 2008