A CONSIDERATION ON PISTON SECOND LAND PRESSURE AND OIL CONSUMPTION OF INTERNAL COMBUSTION ENGINE

Piston second land pressure, combustion pressure, and oil consumption (OC) of a four-stroke gasoline engine have been measured to investigate the relationship between 2nd land pressure and OC. Test results have revealed that OC increases when, past midway in the expansion stroke, 2nd land pressure exceeds combustion pressure and, inversely OC decreases when the 2nd land pressure is below combustion pressure. Based on both theoretical analyses and experiments, this paper describes the reason for the above observation and proposes a method for reducing OC.

  • Availability:
  • Supplemental Notes:
    • International Congress and Exposition, Detroit, Michigan, February 27-March 2, 1984.
  • Corporate Authors:

    Society of Automotive Engineers (SAE)

    400 Commonwealth Drive
    Warrendale, PA  United States  15096
  • Authors:
    • Miyachika, M
    • HIROTA, T
    • Kashiyama, K
  • Publication Date: 1984

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00393029
  • Record Type: Publication
  • Source Agency: National Highway Traffic Safety Administration
  • Report/Paper Numbers: SAE 840099, HS-037 653
  • Files: HSL, USDOT
  • Created Date: Feb 28 1985 12:00AM