Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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A Study on Inequality Rate of Lubrication for Motor-driven Cylinder Lubricator by the Electronically Controlled Quill System Equipped with an Accumulating Distributor in a Large Two-stroke Diesel Engine

대형 2행정 디젤기관용 축압분배기 부착 전자제어식 퀼 시스템 모터구동 실린더 주유기의 주유 불균일률에 관한 연구

  • Bae, Myung-Whan (School of Mechanical Engineering, Gyeongsang National University) ;
  • Jung, Hwa (Department of Mechanical Engineering for Production, Graduate School, Gyeongsang National University) ;
  • Bae, Chang-Hwan (Graduate School of Convergence Technology, BK21 Project, Hoseo University)
  • 배명환 (경상대학교 기계공학부) ;
  • 정화 (경상대학교 대학원 기계설계학과) ;
  • 배창환 (호서대학교 BK21사업단 융합대학원)
  • Received : 2011.09.27
  • Accepted : 2011.12.12
  • Published : 2012.05.01
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Abstract

Minimizing the cylinder wear and the consumption rate of cylinder oil in a large two-stroke diesel engine is of great economic importance. A motor-driven cylinder lubricator for Sulzer RT-flex large two-stroke diesel engines developed by authors is in need of mounting a quill system to lubricate cylinder parts for a smooth operation. In order to apply the common-rail lubricating system to the developed cylinder lubricator as the second research stage, the mechanical quill system with a progressively quantitative distributor (M.D.S.) is improved in the electronically controlled quill system with an accumulating distributor (E.D.S.). In this study, the effects of lubricator motor speed, plunger stroke and cylinder back pressure on oil feed rate and inequality rate are experimentally investigated by applying E.D.S. to the developed cylinder lubricator. It is found that the oil feed rate of E.D.S. is higher than that of M.D.S. because of the increase of delivery speed and volume by changing the role of accumulator in the same experimental condition. It can be also shown that, in E.D.S., the inequality rate is decreased a little or hardly unchanged as the cylinder back pressure and plunger stroke is elevated, while the inequality rate increased in M.D.S.. The inequality rates of E.D.S. and M.D.S. are lowered as the lubricator motor speed is increased.

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References

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