Research of Fuel Components to Expand lean-limit in Super lean-burn condition

Taketora Naiki, Ken Obata, Manabu Watanabe, Takeshi Yokomori, Norimasa Iida

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)


The thermal efficiency of internal combustion engines can be improved dramatically with the right combination of engine technology and fuel technology. Super lean-burn technology is attracting attention as a means of boosting thermal efficiency. However, there is a limit to how lean a fuel-air mixture can be before combustion becomes unstable or misfire occurs. The authors evaluated the effects of various chemical compositions on the lean limit under super lean-burn conditions. By changing the composition of the fuel, it was possible to achieve excess air ratios of over 2.0, resulting in high thermal efficiency.

Original languageEnglish
JournalSAE Technical Papers
Issue numberDecember
Publication statusPublished - 2019 Dec 19
Event2019 JSAE/SAE Powertrains, Fuels and Lubricants International Meeting, JSAE 2019 - Kyoto, Japan
Duration: 2019 Aug 262019 Aug 29

ASJC Scopus subject areas

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


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