韩晓光，陈文滨，袁晓帅，关健，陈泽忠，徐久军.水平缸套发动机油膜分布状态在线测量技术研究[J].内燃机工程,2018,39(4):23-28.
水平缸套发动机油膜分布状态在线测量技术研究
Research on in Situ Measurement of Lube Oil Film Distribution Between Piston Rings and Cylinder on Horizontal Cylinder Engine
DOI：10.13949/j.cnki.nrjgc.2018.04.004
关键词:活塞环  水平缸套  油膜分布  在线测量
Key Words:piston ring  horizontal cylinder  lube oil film distribution  in situ measurement
基金项目:辽宁省自然科学基金项目(201602065); 中央高校基本科研业务费专项资金项目(3132017009);高技术船舶科研计划—船用低速机工程(一期)研制经费资助
作者单位
韩晓光，陈文滨，袁晓帅，关健，陈泽忠，徐久军 1.大连海事大学 船机修造工程交通行业重点实验室，大连 116026；2.中国北方发动机研究所，天津 300400；3. 中国石油四川石化有限责任公司，彭州 611930 
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摘要:针对对置活塞对置气缸二冲程发动机存在机油周向分布不均导致缸套局部拉伤、机油耗升高的问题，设计了透明缸套发动机，结合荧光诱导技术，实现了对水平双对置发动机缸套活塞环油膜分布状态的在线模拟测量。研究了转速为200 r/min、润滑油温度为85～150 ℃时缸套活塞环润滑油膜分布状态，发现当活塞位于上止点位置时，随润滑油温度升高，活塞环处油膜厚度变化不明显，而活塞环靠近燃烧室一侧润滑油膜的荧光强度曲线的峰值和宽度都显著增大，说明随温度升高润滑油向燃烧室的输运效应增强，这与润滑油黏度随温度升高而下降有关。
Abstract:A transparent cylinder liner piston ring engine incorporating fluorescence induced technology was developed to realize the in-situ measurement of the distribution of lubricating oil film between cylinder liner and piston rings in the circumferential direction, in order to address the issue of local liner scuffing that usually takes place in an opposed piston opposed cylinder engine due to poor distribution of lubricating oil between the cylinder liner and piston rings, resulting in high lube oil consumption. The distribution of lube oil film between the cylinder liner and piston rings was measured at the speed of 200 r/min and oil temperature of 85~150 ℃. The results indicate that the variation in lube oil temperature has little effect on the thickness of lube oil film between piston rings and cylinder when piston is at top dead center, however the fluorescence intensity of lube oil film on the sides of the piston rings towards the combustion chamber has remarkable enhancement with the increase of the lube oil temperature. The enhancement in the transportation effect of lube oil to the combustion chamber is caused by the decrease of the viscosity of lube oil attributed to the increase of the temperature.
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