Combustion phasing controllability with dual fuel injection timings

C.A.J. Leermakers, L.M.T. Somers, B.H. Johansson

Research output: Contribution to journalArticleAcademicpeer-review

12 Citations (Scopus)
100 Downloads (Pure)

Abstract

Reactivity controlled compression ignition through in-cylinder blending gasoline and diesel to a desired reactivity has previously been shown to give low emission levels and a clear simultaneous efficiency advantage. To determine the possible viability of the concept for on-road application, the control space of injection parameters with respect to combustion phasing is presented. Four injection strategies have been investigated, and for each the respective combustion phasing response is presented. Combustion efficiency is shown to be greatly affected by both the injection-timing and injection-strategy. All injection strategies are shown to break with the common soot-NOx trade-off, with both smoke and NOx emissions being near or even below upcoming legislated levels. Lastly, pressure rise rates are comparable with conventional combustion regimes with the same phasing. The pressure rise rates are effectively suppressed by the high dilution rates used.
Original languageEnglish
Article number01-1575
Pages (from-to)1-12
Number of pages12
JournalSAE International Journal of Engines
Volume2012
DOIs
Publication statusPublished - 2012

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