TEMPERATURE MEASUREMENTS OF COMBUSTION GAS IN A PRECHAMBER SPARK IGNITION ENGINE

An infrared absorption-emission pyrometer is used to measure instantaneous gas temperatures at several stations in order to understand the mechanisms of the combustion process in a prechamber spark ignition engine. Gas temperature diagrams are obtained with both the air-fuel ratio and torch nozzle diameter as parameters. It is disclosed that the cyclic fluctuations in the combustion process, temperature-rise in the auxiliary chamber and flame propagation in the main chamber are influenced considerably by such factors as air-fuel ratio, and torch-nozzle diameter. The optical pyrometer is also employed to determine the monochromatic emissivity which is needed in the use of a monochromatic radiation pyrometry.

• Supplemental Notes:
  • Proceedings of the 19th International Fisita Congress, Melbourne, November 8-12, 1982.
• Corporate Authors:

  Society of Automotive Engineers

  191 Royal Parade
  Parkville, Victoria 3052,   Australia 
• Authors:
  • Sasaki, T
  • Asanuma, T
  • OHASHI, K
  • Uchiyama, Yusuke
• Publication Date: 1982-11

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 118.1
• Serial:
  • Publication of: Society of Automotive Engineers (Australasia)
  • Publisher: Society of Automotive Engineers

Subject/Index Terms

• TRT Terms: Combustion; Flame propagation; Fuel air mixtures; Gases; Spark ignition engines; Temperature measurement; Temperature measuring instruments
• Uncontrolled Terms: Air fuel ratio
• Old TRIS Terms: Pyrometers
• Subject Areas: Safety and Human Factors;

Filing Info

• Accession Number: 00384671
• Record Type: Publication
• Source Agency: National Highway Traffic Safety Administration
• Report/Paper Numbers: SAEA 82118, HS-035 710
• Files: HSL, USDOT
• Created Date: Apr 30 1984 12:00AM