An optimum rate of combustion for minimum NOx emission exists. If the combustion rate is too slow, there is plenty of time for NOx formation, while if it is too fast, charge temperature becomes very high and more NOx is formed. Current rates of combustion were believed to be slower than the optimum for minimum NOx, and research indicates that faster burn improves the lean mixture and EGR tolerances. An attempt was made to clarify the effect of varying combustion rate over a range of engine speed, load, EGR, octane number, spark timing, and compression ration, while considering its effect on NOx emissions and fuel consumption.

Media Info

  • Pagination: p. 74-75
  • Serial:
    • Automotive Engineering
    • Volume: 87
    • Issue Number: 7
    • Publisher: Society of Automotive Engineers (SAE)
    • ISSN: 0098-2571

Subject/Index Terms

Filing Info

  • Accession Number: 00303397
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Jan 30 1980 12:00AM