COMBUSTION AND POLLUTANT FORMATION IN AN INDIRECT INJECTION DIESEL ENGINE

A traversed fast-sampling technique has been applied to explore the processes of combustion and pollutant formation in an indirect injection, swirl chamber type diesel combustion system. To permit traversed gas-sampling in each chamber, experiments were made on a double-scavenged two-stroke cycle engine with a simulated two-dimensional chamber configuration. Parameters of interest in the experiments include the extent of fuel rich zones and their decay with time, the action of swirling air motion, nitric oxide formation, the formation of hydrocarbons and soot, the state of gas outflow from the swirl chamber into the main chamber, and flame spread within the main chamber. The effect of certain operating conditions and design parameters, such as overall fuel-air ratio, injection timing, connecting passage dimension, and fuel spray direction on experimental parameters were investigated.

• Supplemental Notes:
  • Also published in HS-029 113 (SAE-P-86), "Diesel Combustion and Emissions," Warrendale, Pennsylvania, 1980 pp 13-28. Presented at SAE Congress and Exposition, Detroit, 25-29 February 1980. Supported in part by the Japan Ministry of Education.
• Corporate Authors:

  Society of Automotive Engineers (SAE)

  400 Commonwealth Drive
  Warrendale, PA  United States  15096
• Authors:
  • MIWA, K
  • IKEGAMI, M
  • NAKANO, R
• Publication Date: 1980

Media Info

• Features: References;
• Pagination: 16 p.

Subject/Index Terms

• TRT Terms: Combustion; Combustion chambers; Fly ash; Fuel air mixtures; Fuels; Hydrocarbons; Nitric oxide; Pollutants; Sampling; Sprays (Materials)
• Uncontrolled Terms: Air fuel ratio; Soot; Timing
• Old TRIS Terms: Fuel spray; Indirect injection diesel engines; Swirl chambers
• Subject Areas: Energy; Safety and Human Factors;

Filing Info

• Accession Number: 00385644
• Record Type: Publication
• Source Agency: National Highway Traffic Safety Administration
• Report/Paper Numbers: SAE 800026, HS-029 115
• Files: HSL, USDOT
• Created Date: Jun 28 1984 12:00AM