THE STAGED COMBUSTION COMPOUND ENGINE (SCCE): EXHAUST EMISSIONS AND FUEL ECONOMY POTENTIAL

Experiments with a two-cylinder research engine showed that low NO emission could be obtained without sacrificing engine efficiency. However, approximately 40 percent more displacement is required to produce the same power as conventional SI engines. The sources of HC, CO, and NO emissions were investigated, as were the effects of major engine variables on these exhaust emissions and fuel consumption. The staged combustion concept was implemented using a 7.46 litre V-8 engine. Present FTP emission levels are 0.87 g/mi HC, 8.7 g/mi CO, and 0.34 g/mi NO at low mileage using a catalytic converter. FTP fuel economy is 4.9 km/2 (11.5 mpg). /GMRL/

  • Corporate Authors:

    Society of Automotive Engineers

    400 Commonwealth Drive
    Warrendale, PA  USA  15096
  • Authors:
    • SIEWERT, R M
    • Turns, S R
  • Publication Date: 1975-10

Media Info

  • Pagination: 22 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00131045
  • Record Type: Publication
  • Report/Paper Numbers: SAE #750889
  • Files: TRIS
  • Created Date: Apr 21 1976 12:00AM