MTZ worldwide

, Volume 78, Issue 4, pp 26–33 | Cite as

Extension of the LP-EGR Operation Area under RDE Terms

  • Patrick ReckerEmail author
  • Marinela Gheorghe
  • Leo Xenakis
  • Andy Lilley
Cover Story

Low pressure exhaust gas recirculation offers great potential for the reduction of engine- out nitrogen oxide emissions, with a reduction of specific fuel consumption compared to high pressure exhaust gas recirculation. By introducing the exhaust gas upstream of the turbocharger, there is a danger of forming condensation which could cause damage to the compressor wheel. In a joint study between Jaguar Land Rover (JLR) and FEV Europe, two JLR engines have been investigated specifically to determine the limits for the formation of condensation, depending on coolant and intake air temperatures.

The Limits of Low Pressure EGR

With the introduction of the Euro 6d (temp) exhaust legislation, fixed emission limits for real driving conditions (Real Driving Emissions, RDE) have been defined for the first time. For nitrogen oxide emissions, a conformity factor (CF) of 2.1 based on the Euro 6 limit of 80 mg/km has been defined, resulting in a limit of 168 mg/km under real driving conditions. To...



The authors want to thank Dr.-Ing. Christoph Menne and Robin Maugham, PhD for their support in performing the study and creating this article.

Copyright information

© Springer Fachmedien Wiesbaden 2017

Authors and Affiliations

  • Patrick Recker
    • 1
    Email author
  • Marinela Gheorghe
    • 2
  • Leo Xenakis
    • 3
  • Andy Lilley
    • 4
  1. 1.Springer Fachmedien Wiesbaden GmbHWiesbadenGermany
  2. 2.Springer Fachmedien Wiesbaden GmbHWiesbadenGermany
  3. 3.Springer Fachmedien Wiesbaden GmbHWiesbadenGermany
  4. 4.Springer Fachmedien Wiesbaden GmbHWiesbadenGermany

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