Tribology and Lubricants

Korean Tribology Society (한국트라이볼로지학회)
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Analysis of Ring Pack Lubrication Considering Oil Transport

오일 이송을 고려한 다중 피스톤 링계의 피스톤 링 윤활 해석

  • 이재선 (서울대학교 정밀기계설계공동연구소) ;
  • 한동철 (서울대학교 기계항공공학부)
  • Published : 1999.09.01
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Abstract

Generally quantity of supply oil for piston ring lubrication in an internal combustion engine may be insufficient to fill the entire volume formed in the clearance between piston ring and cylinder liner. Thus oil starvation condition should be considered for the analysis of piston ring lubrication. In order to reasonably estimate amount of oil left on the cylinder liner, adequate boundary condition should be adapted for the analysis of ring pack lubrication. In this analysis of ring pack lubrication of an internal combustion engine, oil starvation and open-end boundary conditions are considered at inlet and outlet of piston rings. It is revealed that piston rings are operated under oil starvation in most operating cycle and the result with these conditions are quite different from that with fully-flooded assumption.

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References

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