氢发动机中润滑油乳化特性的试验研究
Experimental Research on Emulsification Characteristics of Lubricating Oil in Hydrogen Internal Combustion Engines
刘吉绪 1吴涛阳 1李万洋 2王艳龙 3吴春玲 1王凤滨 1赵亮 1郭向阳 1庞国民1
作者信息
- 1. 中汽研汽车检验中心(天津)有限公司,天津,300300
- 2. 潍柴动力股份有限公司,山东 潍坊,261021
- 3. 中国第一汽车股份有限公司研发总院,吉林 长春,130000
- 折叠
摘要
在一台 4 缸直喷氢发动机上系统研究了运转时长、采样温度、润滑油温度等因素对润滑油乳化特性的影响,并采用热重分析法对高含水量润滑油的蒸发特性进行了研究.试验结果表明,氢发动机在低油温工况运行时,润滑油含水量随运转时长快速线性增长.润滑油采样温度对含水量测量结果几乎没有影响.乳化后润滑油中的水分在受热条件下可挥发,温度越高挥发速率越快.在 100℃油温条件下,600 s内 15%含水量的润滑油中水分可完全挥发,这表明采用热管理措施可抑制氢发动机中润滑油乳化.
Abstract
The effects of running time,sampling temperature and operating temperature of lubricating oil on the emulsification charac-teristics of lubricating oil were systematically studied on a 4-cylinder DI hydrogen internal combustion engine.The evaporation charac-teristic of lubricating oil with high water content was explored by means of thermogravimetric analysis.The results show that the water content in lubricating oil increases linearly with running time rapidly when the engine operates under the condition with low-temperature oil.The sampling temperature for oil has little effect on the measurement results of water content.The result of thermogravimetric anal-ysis show that the water in the emulsified oil could be evaporated under the heating conditions.The water in the oil with water content of 15%could be completely evaporated within 600 s under 100℃,which indicates that the hydrogen engines could avoid the lubrica-ting oil emulsification through the effective thermal management.
关键词
氢发动机/润滑油/含水量/机油乳化/影响因素Key words
hydrogen internal combustion engine/iubricating oil/water content/emulsification/influencing factors引用本文复制引用
出版年
2024
NETL
NSTL
万方数据