Experimental investigation of the effect of split injection on diesel engine performance

Gideon Goldwine, Eran Sher

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

The combustion process in diesel engines is under constant study. A major research effort is being made to establish a better understanding of diesel combustion. Many issues regarding diesel combustion remain unresolved, and these issues may prevent the use of diesel engines due to increasingly stricter air pollution legislation. This study dealt with the effect of the fuel injection profile on diesel engine performance through the utilisation of different multiple injection strategies. From the engineering point of view, establishing a continuous fuel injection profile with the ability to change fuel flow is impossible today. The most feasible engineering solution to continuous fuel injection profile is the utilisation of multiple injection events, which enables control of fuel flow. Multiple injection as a tool to control combustion in diesel engines has been studied for several years, this study investigated the effect of different two injections strategies on the combustion. The results and the analysis of the results demonstrate that multiple injections affect both the physical processes and the kinetics of combustion. Proper division of the injected fuel among injections may decrease engine emissions considerably while causing only a minor decrease in engine efficiency.

Original languageEnglish
Pages (from-to)66-90
Number of pages25
JournalInternational Journal of Vehicle Design
Volume50
Issue number1-4
DOIs
StatePublished - 1 Jan 2009

Keywords

  • Diesel fuel injection
  • Multiple injections
  • Spray combustion

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