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 Integrated Cylinder Lubricator System with an Accumulated Distribution by the Electronic Control in a Large Two-stroke Diesel Engine

대형 2행정 디젤기관에 있어서 일체형 전자제어 축압분배 실린더 주유기 시스템의 주유 불균일률에 관한 연구

  • Bae, Myung-Whan (Department of Mechanical Engineering for Production, Gyeongsang National University) ;
  • Jung, Hwa (Department of Computer Applied Mechanical, Jinju Campus of Korea PolytechnicVII) ;
  • Kim, Su-Min (Graduate School, Gyeongsang National University) ;
  • Bae, Chang Hwan (Graduate School of Convergence Technology, Hoseo University)
  • 배명환 (경상대학교 기계설계학과) ;
  • 정화 (한국폴리텍VII대학 진주캠퍼스 컴퓨터응용기계과) ;
  • 김수민 (경상대학교 대학원) ;
  • 배창환 (호서대학교 융합대학원)
  • Received : 2013.08.06
  • Accepted : 2013.09.13
  • Published : 2014.03.01
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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 improving the lubricating system to lubricate cylinder parts optimally by an electronically controlled quill device according to changes of engine load and revolution speed. In order to apply the developed accumulating distributor to an integrated cylinder lubricator by the electronically controlled system as the third research stage, the lubricating system is improved in the electronically controlled quill device with a solenoid valve. In this study, the effects of lubricator revolution speed, driving pressure(or plunger stroke) and cylinder back pressure on oil feed rate and lubrication inequality rate are investigated by using the integrated cylinder lubricator system with an accumulated distribution by the electronic control(I.C.S.), and the oil feed rate and lubrication inequality rate of I.C.S. are compared with those of the motor-driven cylinder lubricator by the electronically controlled quill system equipped with an accumulating distributor(E.D.S.). It is found that the oil feed rate of I.C.S. is smaller than that of E.D.S. due to the reduction of delivery velocity by the higher delivery pressure, and the variances of lubrication inequality rate for I.C.S. have become smaller than those of E.D.S. as the driving pressure in all experimental conditions increases, except for the driving pressure of 26 bar(plunger stroke 2 mm) at the cylinder lubricator speed of 120 rpm.

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References

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