대형 2행정 디젤기관용 축압분배기 부착 전자제어식 퀼 시스템 모터구동 실린더 주유기의 주유 불균일률

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

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-f1ex 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, 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. It can be also shown that the inequality rate of E.D.S and M.D.S is lowered as the lubricator motor speed is increased.