Ignition timing control of homogeneous charge compression ignition engines by pulsed flame jets

Eiichi Murase, K. Hanada

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

In diesel engines, most of the fuel is burned in a diffusion combustion phase, which inherently leads to the formation of excessive amounts of soot and NOx emissions. In order to decrease soot and NOx emissions simultaneously, the concept of a lean homogeneous charge compression ignition engine has been proposed. The onset of the combustion of the engine depends on the auto-ignition of the fuel, so it is quite difficult to control the ignition timing. On the other hand, it has been revealed that Pulsed Flame Jet (PFJ) has a great potential to enhance ignition reliability and burning rate in lean mixtures. In this article, autoignition characteristics of n-butane/air mixtures in a rapid compression machine (RCM) were shown first. The appearance of low temperature flames was observed in autoignition of n-butane in the RCM used here, and it was realized that the final compression conditions in the RCM correspond to the upper end of the low-temperature range of the positive temperature dependence region of ignition delay. Then the combustion tests with PFJ were carried out and it was demonstrated that the onset of combustion can be controlled by PFJ, and it was revealed that PFJ has a potential for the ignition timing control of the homogeneous charge compression ignition engine.

Original languageEnglish
Pages (from-to)129-140
Number of pages12
JournalCombustion Science and Technology
Volume174
Issue number5-6
DOIs
Publication statusPublished - Jan 1 2002

Fingerprint

ignition
Ignition
engines
time measurement
Engines
spontaneous combustion
Soot
soot
butanes
Butane
burning rate
diesel engines
flames
Temperature
Diesel engines
Compaction
temperature dependence
air
Air

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Physics and Astronomy(all)

Cite this

Ignition timing control of homogeneous charge compression ignition engines by pulsed flame jets. / Murase, Eiichi; Hanada, K.

In: Combustion Science and Technology, Vol. 174, No. 5-6, 01.01.2002, p. 129-140.

Research output: Contribution to journalArticle

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