Direct water injection to improve diesel spray combustion

Koji Takasaki, Tatsuo Takaishi, Hiroyuki Ishida, Keijirou Tayama

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)


Now, it is essential to apply some measures for NOx reduction to low-speed diesel engines emitting much more NOx than high-speed engines. At the same time PM emission must be reduced especially when bunker fuel or heavy fuel is burned. This paper describes the applications of SFWI (Stratified Fuel Water Injection) system and DWI (Direct Water Injection) system to large sized diesel engines to reduce NOx and PM emission. SFWI system makes it possible to inject water during fuel injection from the same nozzle hole without mixing the liquids. DWI system injects water with high injection pressure from the other injection hole than the fuel injection hole into the combustion chamber directly. For testing both the systems, a 2-stroke-cycle low-speed test engine was used.

Original languageEnglish
Pages (from-to)27-34
Number of pages8
JournalAmerican Society of Mechanical Engineers, Internal Combustion Engine Division (Publication) ICE
Publication statusPublished - 2003
EventProceedings of the 2003 Spring Technical Conference of the ASME Internal Combustion Engine Division - Salzburg, Austria
Duration: May 11 2003May 14 2003

All Science Journal Classification (ASJC) codes

  • General Engineering


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