EFI PRECHAMBER TORCH IGNITION OF LEAN MIXTURES

This paper describes the development of a prechamber-type torch ignition system on a modified 4-cyl, 140 cubic inch engine. The prechamber consists of a blind cavity coupled to the main chamber with an orifice. Fuel is supplied to the prechamber with an electronic fuel injector and this mixture is ignitied by a spark plug. The prechamber produces an ignition torch which ignites a main chamber that is supplied with a lean mixture carbureted in the conventional manner. The performance of this combustion concept was evaluated on the basis of vehicle drivability, exhaust emissions, and fuel economy in a 3000 lb weight class vehicle. /GMRL/

  • Corporate Authors:

    Society of Automotive Engineers

    400 Commonwealth Drive
    Warrendale, PA  USA  15096
  • Authors:
    • WYCZALEK, F A
    • HARNED, J L
    • Maksymiuk, S
    • BLEVINS, J R
  • Publication Date: 1975

Media Info

  • Pagination: 15 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00099217
  • Record Type: Publication
  • Report/Paper Numbers: SAE #750351
  • Files: TRIS
  • Created Date: Nov 5 1975 12:00AM