Effect of Fuel and Combustion System on the Pre-Ignition of Boosted SI Engines

Authors

Dr.-Ing. P. Adomeit, Dr.-Ing. J. Dohmen,
Dipl.-Ing. M. Thewes, Dr.-Ing. J. Ewald, FEV GmbH, Aachen; Dipl.-Ing. M. Günther, Dipl.-Ing. B. Morcinkowski, Prof. Dr.-Ing. S. Pischinger, RWTH Aachen University

Year

2013

Print Info

Fortschritt-Berichte VDI, Reihe 12, Nr. 764

Summary

Downsizing of gasoline engines is one of the key technologies for a substantial progress in CO₂-emissions reduction. Additional benefit in de-carbonisation is gained by the use of fuels with bio-components. Thus, future gasoline engines will demand a combination of downsizing and flex-fuel capability. Both enhanced downsizing and new fuels lead to challenges due to irregular combustion phenomena. This contribution presents pre-ignition results obtained on a highly boosted engine for different fuels and injection systems by a combination of engine testing, optical diagnostics and CFDR.

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