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 (SAE)

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

Media Info

• Pagination: 15 p.

Subject/Index Terms

• TRT Terms: Combustion; Exhaust gases; Fuel consumption; Fuel injection; Ignition systems; Performance tests; Vehicle performance
• Subject Areas: Energy; Highways; Safety and Human Factors;

Filing Info

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