EFFECTS OF HELICAL PORT WITH SWIRL CONTROL VALVE ON THE COMBUSTION AND PERFORMANCE OF S.I. ENGINE

A helical port with swirl control valve (SCV) has been developed to satisfy two inconsistent requirements of achieving sufficient swirl generation to improve the combustion and still maintaining high volumetric efficiency. Their effects on combustion were confirmed in a single cylinder engine using high speed flame photography and cylinder pressure diagram analysis which has demonstrated faster combustion. As a result of a hot wire anemometer study, the differences in gas motion were clarified between two helical port with and without SCV, and more active movement of the center of swirl was measured in the case of helical port with SCV which suggests generation of higher turbulence in the cylinder.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/6664983
• Corporate Authors:

  Society of Automotive Engineers of Japan

  10-2 Goban-cho, Chiyoda-ku
  Tokyo,   Japan 
• Authors:
  • Inoue, T
  • Nakanishi, K
  • Matsushita, S
  • Okumura, T
• Publication Date: 1984-11

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 54-61
• Serial:
  • JSAE Review
  • Issue Number: 15
  • Publisher: Society of Automotive Engineers of Japan
  • ISSN: 0389-4304
  • Serial URL: http://www.sciencedirect.com/science/journal/03894304

Subject/Index Terms

• TRT Terms: Combustion; Engine performance; Machine valves; Spark ignition engines; Turbulence
• Old TRIS Terms: Control valves; Helical port; Swirl
• Subject Areas: Safety and Human Factors;

Filing Info

• Accession Number: 00450204
• Record Type: Publication
• Source Agency: National Highway Traffic Safety Administration
• Report/Paper Numbers: HS-038 544
• Files: HSL, USDOT
• Created Date: Nov 30 1985 12:00AM