한국자동차공학회논문집 (Transactions of the Korean Society of Automotive Engineers)

  • 제14권1호
  • /
  • Pages.31-38
  • /
  • 2006
  • /
  • 1225-6382(pISSN)
  • /
  • 2234-0149(eISSN)
한국자동차공학회 (The Korean Society of Automotive Engineers)
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회전 라이너를 이용한 엔진 마찰저감

Engine Friction Reduction Through Liner Rotation

  • 주신혁 (텍사스 어스틴 대학교 기계공학과) ;
  • 김명진 (텍사스 어스틴 대학교 기계공학과) ;
  • ;
  • 전광민 (연세대학교 기계공학과)
  • Joo Shinhyuk (Department of Mechanical Engineering, University of Texas at Austin) ;
  • Kim Myungjin (Department of Mechanical Engineering, University of Texas at Austin) ;
  • Matthews Ronald D. (Department of Mechanical Engineering, University of Texas at Austin) ;
  • Chun Kwang-Min (Department of Mechanical Engineering, Yonsei University)
  • 발행 : 2006.01.01
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초록

Cylinder liner rotation is a new concept for reducing piston assembly friction in the internal combustion engine. The purpose of cylinder liner rotation is to reduce the occurrence of boundary and mixed lubrication friction in the piston assembly. This paper reports the results of experiments to quantify the potential of the rotating liner engine. A GM Quad-4 SI engine was converted to single cylinder operation and modified for cylinder liner rotation. The hot motoring method was used to compare the friction loss between the baseline engine and the rotating liner engine. Additionally, tear-down tests were used to measure the contribution of each engine component to the total friction torque. The cycle-averaged motoring torque of the RLE represents a $23\~31\%$ friction reduction compared to the baseline engine for hot motoring tests. Through tear down tests, it was found that the piston assembly friction of the baseline engine is reduced from $90\%$ at 1200 rpm to $71\%$ at 2000 rpm through liner rotation.

키워드

참고문헌

  1. R. C. Rosenberg, 'General Friction Considerations for Engine Design,' SAE 821576, 1982
  2. S. F. Rezeka and N. A. Henein, 'A New Approach to Evaluate Instantaneou Friction and Its Components in Internal Combustion Engines,' SAE 840179, 1984
  3. A. Comfort, 'An Introduction to Heavy-Duty Diesel Engine Frictional Losses and Lubricant Properties Affecting Fuel Economy-Part I,' SAE 2003-01-3225, 2003
  4. D. Dardalis, 'A Unique Hydrodynamic Face Seal for the Rotating Liner Engine, and the Rotating Liner Engine Face Seal Transient Code,' Ph.D. Dissertation, UTA, 2003
  5. R. L. Norton, Design of Machinery, Second Edn., McGraw-Hill, New York, 1999
  6. J. B. Heywood, Internal Combustion Engine Fundamentals, McGraw-Hill, New York, 1982
  7. R. D. Matthews, Internal Combustion Engines and Automotive Engineering, Draft Copy of a Textbook to be Published by Harper-Collins, 2004