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, Volume 73, Issue 5, pp 44–49 | Cite as

Potentials and Limits of CO2 Emissions of Gasoline Engines

Part 2: New Combustion Processes
  • Rudolf Flierl
  • Frederic Lauer
  • Stephan Schmitt
  • Ulrich Spicher
Development Gasoline Engines

In MTZ 4 the Technical University of Kaiserslautern and Karlsruhe Institute of Technology (KIT) have presented the mechanical possibilities to further develop homogeneously and stoichiometrically operated gasoline engines. This second part of the article describes new combustion processes to increase engine efficiency. For this purpose stoichiometric and stratified lean operation mode as well as future combustion processes like HCCI and their potentials are presented. The described potentials and limits of both articles are combined and contrasted with each other.


Already in [1] the possibilities and limits of thermodynamic approaches to optimise process on homogeneously, stoichiometrically operated gasoline engines via valve train variability were evaluated. Therefore the application of cam phasers, discretely staged valve lift shifters and fully variable systems were separately examined. Furthermore the potential to reduce fuel consumption with cylinder deactivation in...


  1. [1]
    Flierl, R.; Lauer, F.; Schmitt, S.; Spicher, U.: Potentials and Limits of CO2 emissions of gasoline engines — Part I: Mechanic Techniques. In: MTZ 73 (2012), No. 4Google Scholar
  2. [2]
    Werth, C.: Lambda-Split. University of Kaiserslautern, Diploma Thesis, 2010Google Scholar
  3. [3]
    Waltner, A.; Lückert, P.; Doll, G.; Kemmler, R.: New 3.5-l V6 Gasoline Engine with Direct Injection from Mercedes-Benz. In: MTZ 71 (2010), No. 9Google Scholar
  4. [4]
    Spicher, U.; Sarikoc, F.: Engine Downsizing by Gasoline Direct Injection and Turbocharging. ISROMAC-13, International Symposium on Transport Phenomena and Dynamics of Rotary Machinery, Hawaii, 2010Google Scholar
  5. [5]
    Schumann, F.; Buri, St.; Kubach, H.; Spicher, U.; Hall, M. J.: Untersuchung zur Partikelemission bei Benzin-Direkteinspritzung mit Einspritzdrücken bis zu 1000 bar. Conference 19th Aachen Colloquium Automobile and Engine Technology, 2010Google Scholar
  6. [6]
    Sarikoc, F.: Untersuchungen zur Reduzierung der Stickoxidemissionen bei modernen Brennverfahren für Motoren mit Benzin-Direkteinspritzung. Karlsruhe Institute of Technology, Doctoral Thesis, 2009Google Scholar
  7. [7]
    Gottschalk, W.: Wirkungsgrad- und Emissionspotentiale zukünftiger Brennverfahren von Pkw-Motoren. Ilmenau University of Technology, Habilitation Treatise, 2010Google Scholar
  8. [8]
    Hübner, W.; Gehrke, U.; Boulouchos, K.; Peters, N.; Schulz, C.; Spicher, U.: Influence of pilot injection on controlled auto-ignition combustion — A theoretical and experimental study. SIA International Conference The spark ignition engine of the future, Strasbourg, 2009Google Scholar
  9. [9]
    Spicher, U.: Analyse und Effizienz zukünftiger Antriebssysteme für die individuelle Mobilität — Vergleich und Grenzen. MTZ Conference Der Antrieb von morgen, Wolfsburg, 2012Google Scholar

Copyright information

© Springer Fachmedien Wiesbaden 2012

Authors and Affiliations

  • Rudolf Flierl
    • 1
  • Frederic Lauer
    • 1
  • Stephan Schmitt
    • 1
  • Ulrich Spicher
    • 2
  1. 1.University of KaiserslauternKaiserslauternGermany
  2. 2.Karlsruhe Institute of Technology (KIT)KarlsruheGermany

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