Improvement of combustion in a dual fuel natural gas engine with half the number of cylinders

Norifumi Mizushima, Shingo Ito, Jin Kusaka, Yasuhiro Daisho

Research output: Contribution to journalConference article

7 Citations (Scopus)

Abstract

A dual fuel natural gas diesel engine suffers from remarkably lower thermal efficiency and higher THC, CO emissions at lower load because of its lower burned mass fraction caused by the lean pre-mixture. To overcome this inevitable disadvantage at lower load, two methods of reducing the number of operating cylinders were examined. One method was to use the two cylinders operation while the second one was to use the quasi-two cylinders operation. As a result, it was found that the unburned hydrocarbons and CO emissions could be favorably reduced with the improvement of thermal efficiency by reducing the number of cylinders to half for a dual fuel natural gas diesel engine. Moreover, it was also found that the quasi-two cylinders operation could improve the torque fluctuation more compared to the two cylinders operation.

Original languageEnglish
JournalSAE Technical Papers
DOIs
Publication statusPublished - 2003 Jan 1
Event2003 JSAE/SAE International Spring Fuels and Lubricants Meeting - Yokohama, Japan
Duration: 2003 May 192003 May 22

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Improvement of combustion in a dual fuel natural gas engine with half the number of cylinders'. Together they form a unique fingerprint.

  • Cite this