To reduce parasitic losses, a project was initiated to design, develop and bring to production a piston ring set which reduces engine friction while maintaining ring performance. In this paper, theoretical considerations affecting piston ring friction, and their implication in ring design, are discussed. An estimate of friction reduction and fuel economy improvement which can be achieved is calculated. Features of the resulting designs are reviewed, and friction, dynamometer, and vehicle test results are presented. Future ring design changes for reduced friction are reviewed.

  • Availability:
  • Supplemental Notes:
    • Passenger Car Meeting Dearborn, Michigan, October 1-4, 1984.
  • Corporate Authors:

    Society of Automotive Engineers (SAE)

    400 Commonwealth Drive
    Warrendale, PA  United States  15096
  • Authors:
    • Hill, S H
    • Newman, B A
  • Publication Date: 1984

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 17 p.
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00395763
  • Record Type: Publication
  • Source Agency: National Highway Traffic Safety Administration
  • Report/Paper Numbers: SAE 841222, HS-038 287
  • Files: HSL, USDOT
  • Created Date: Jun 30 1985 12:00AM