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.
Piston Ring Designs for Reduce Friction
Sae Technical Papers
Passenger Car Meeting & Exposition ; 1984
01.09.1984
Aufsatz (Konferenz)
Englisch
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