LEAN MIXTURE ENGINES TESTING AND EVALUATION PROGRAM. VOLUME III: APPENDICES

This report is aimed at defining analytically and demonstrating experimentally the potential of the 'lean-burn concept.' Fuel consumption and emissions data are obtained on the engine dynamometer for the baseline engine, and two lean-burn configurations of the same engine and data comparisons are made. Individual cylinder equivalence ratios are measured to evaluate the cylinder-to-cylinder distribution. Pressure-time traces from individual cylinders are used to get information about ignition delay, combustion duration and cycle-to-cycle pressure variations. Fuel consumption and emissions data for one lean-burn configuration are obtained over the Federal Driving Cycle using a chassis dynamometer and the results are compared with the stock baseline results. Using experimental results and information from the existing literature, the potential of the 'lean-burn concept' is assessed using the Blumberg-Kummer cycle analysis program. The appendices presents supplemental analysis methods, fuel economy and emissions test data, and a description of the instrumentation used in the testing and evaluation program.

  • Supplemental Notes:
    • See also PB-251 766.
  • Corporate Authors:

    Jet Propulsion Laboratory

    California Institute of Technology, 4800 Oak Grove Drive
    Pasadena, CA  USA  91103

    Transportation Systems Center

    55 Broadway, Kendall Square
    Cambridge, MA  USA  02142
  • Authors:
    • Dowdy, M W
    • Hoehn, F W
    • Vanderburg, T G
  • Publication Date: 1974

Media Info

  • Features: Appendices;
  • Pagination: 84 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00133309
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: JP 85040-12-Vol-3, DOT-TSC-OST-75-26.III
  • Contract Numbers: Contract Ra-74-38-T
  • Files: NTIS, TRIS
  • Created Date: Jun 23 1976 12:00AM