A study of air-fuel mixture formation in direct-injection SI engines

Akihiko Kakuho, Koichi Yamaguchi, Yutaka Hashizume, Tomonori Urushihara, Teruyuki Itoh, Eiji Tomita

Research output: Chapter in Book/Report/Conference proceedingConference contribution

12 Citations (Scopus)


An investigation was made into two approaches to air-fuel mixture formation in direct injection SI engines in which charge stratification is controlled by swirl or tumble gas motions, respectively. Particle image velocimetry (PIV), laser-induced fluorescence (LIF) and air-fuel ratio measurement by infrared absorption were used to analyze fuel transport from the fuel injector to the spark plug and the fuel vaporization process. The results obtained were then compared with measured data as to combustion stability. As a result, the reason why the effects of injection timing on combustion stability were different between the two approaches was made clear from the standpoint of the mixture formation process.

Original languageEnglish
Title of host publicationFuels and Lubricants Meeting and Exhibition
PublisherSAE International
ISBN (Print)0768013194, 9780768013191
Publication statusPublished - Jan 1 2004
EventFuels and Lubricants Meeting and Exhibition - Toulouse, France
Duration: Jun 8 2004Jun 10 2004


OtherFuels and Lubricants Meeting and Exhibition

ASJC Scopus subject areas

  • Automotive Engineering
  • Safety, Risk, Reliability and Quality
  • Pollution
  • Industrial and Manufacturing Engineering


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