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http://dx.doi.org/10.9725/kstle.2009.25.5.348

A Study on Friction Reduction Related with the Piston Ring Pack with Thinner Width Ring and Lower Tension Ring  

Chun, Sang-Myung (Dept. of Automotive Engineering, Hoseo University)
Publication Information
Tribology and Lubricants / v.25, no.5, 2009 , pp. 348-358 More about this Journal
Abstract
To satisfy the more severe emission regulation and the demand of higher fuel economy in near future, the combustion pressure and power output of engines is going to be higher. In order to get the reduction of engine emission and the higher power, it is needed the reduction of the tension and width of ring pack. The lower tension ring and the manufacturing technology of cast iron thinner width ring can bring the friction reduction between the ring and liner during engine running. Therfore, the fuel economy can be achieved. Thereafter the engine emission can be reduced. In this study, by using a developed basic computer program that predicts the inter-ring pressure, the motion of ring and the inter-ring pressure through a crevice volume model between adjacent rings, and the oil film thickness and the friction computed by lubrication theories, it is to be examined the effect of friction reduction from piston ring pack equipped with thinner width ring and lower tension ring.
Keywords
piston ring; friction reduction; thinner width ring; lower tension ring;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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