CLEAN AUTOMOBILES ON LEADED GASOLINES

This paper describes a novel 4-stroke piston SI engine combustion system, designed and developed to meet the Clean Air Act amendment for car exhaust emissions for 1985 on 1969/70 vintage leaded gasolines. Combustion is initiated by a spark between a point anode and a diametrally placed bar as cathode at the center of a spherical precombustion chamber. The 100-bar injected fuel collides with the bar cathode BDC, finely atomizes, and forms a stratified charge by Einstein vortex action prior to ignition within the sphere, the cylinder being fuel dry. Ignition point is fixed 5 degree early from idle to full power, due to the physics of vortex action.

• Supplemental Notes:
  • For SAE meeting held June 8-12, 1981.
• Corporate Authors:

  Society of Automotive Engineers (SAE)

  400 Commonwealth Drive
  Warrendale, PA  United States  15096
• Authors:
  • Goodacre, C L
• Publication Date: 1981

Media Info

• Features: References;
• Pagination: 36 p.
• Serial:
  • Society of Automotive Engineers Preprint
  • Publisher: Society of Automotive Engineers (SAE)

Subject/Index Terms

• TRT Terms: Combustion chambers; Exhaust gases; Fuel injection; Ignition systems; Leaded gasoline; Stratified charge engines; Vehicle power plants
• Old TRIS Terms: Automobile engines
• Subject Areas: Highways; Vehicles and Equipment; I91: Vehicle Design and Safety;

Filing Info

• Accession Number: 00348320
• Record Type: Publication
• Source Agency: Engineering Index
• Report/Paper Numbers: SAE 810778
• Files: TRIS
• Created Date: Mar 30 1982 12:00AM