EFFICIENCY AND EMISSIONS OF A STRATIFIED CHARGE ENGINE OPTIMIZED FOR VARIOUS FUELS

Experimental work was done with a Texaco stratified-charge engine to investigate the effect of fuel type, spark timing, and fuel injection timing on efficiency and emissions. Gasoline, diesel fuel, and a mixture of the two in equal proporations were used as fuels. Results show engine efficiency ranges from about 20% at light-load to over 30% at full-load. The difference in efficiency attributable to fuel type was one to two percent. Between the two fuels gasoline and diesel, greater efficiency was associated with diesel fuel at part-load while the greater efficiency at full-load was seen with gasoline. The results for all fuels show that spark timing set equal to fuel injection timing generally produced the best efficiency and except for nitrogen oxides, the lowest emissions. /SAE/

  • Corporate Authors:

    Society of Automotive Engineers

    400 Commonwealth Drive
    Warrendale, PA  USA  15096
  • Authors:
    • Evers, L W
    • Fleming, R D
    • HURN, R W
  • Publication Date: 1978-2

Media Info

  • Pagination: 6 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00193525
  • Record Type: Publication
  • Report/Paper Numbers: SAE 780236
  • Files: TRIS
  • Created Date: May 26 1979 12:00AM