Study on ignition delay and combustion of diesel spray with high pressure fuel injection and a micro-hole nozzle using a rapid compression machine (consideration of non-uniformity of equivalence ratio inside a spray)

Norimasa Iida, Jinha Lee

Research output: Contribution to journalArticle


This study was aimed at reducing Soot and NOx by uniform and lean distribution of fuel in diesel spray using high-pressure fuel injection and a micro-hole nozzle. But this injection system made ignition delay shorter. So that, it couldn't completely make uniform and lean distribution of fuel in diesel spray. Then, in addition to this injection system, using low cetane number of fuel, which can not easily ignited, we made ignition delay longer, and attempted to make complete uniform and lean distribution of fuel in diesel spray. The combustion event was observed by high-speed direct photography, ignition and combustion was analyzed by the combustion chamber pressure history, and KL values and a flame temperature was analyzed by the two-color method from the two- dimensional flame image.

Original languageEnglish
Pages (from-to)1555-1562
Number of pages8
JournalNihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Issue number658
Publication statusPublished - 2001 Jun 1



  • Cetane number
  • Diesel engine
  • High-pressure fuel injection
  • Ignition delay
  • Micro-holenozzle
  • Rapid compression machine
  • Uniform and lean distribution

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering

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