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袁晓军,腾和,曾小春,李斌,罗剑坤,涂宏海,熊乐,罗富胜.对某增压柴油机润滑系统的一维流体动力学分析及设计改进[J].柴油机,2015,37(5):40-45. [点击复制]
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| 摘要:针对某国产增压柴油机的润滑系统存在的增压器轴承早期失效,活塞温度偏高等问题,应用一维流体动力学分析软件FLOWMASTER建立润滑系统仿真模型,对润滑系统旁通控制阀的开启参数设置的合理性进行了仿真分析。仿真分析表明:上述问题产生的根源是机滤总成旁通阀和活塞冷却喷嘴的开启压力设置不合理。据此进行了优化设计,优化后的润滑系统避免了上述问题,发动机工作可靠性得到提高。 |
| 关键词: 压柴油机 润滑系统 仿真分析 改进设计 |
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| One-dimensional Hydraulic Analysis on the Lubrication System ofa Turbocharged Diesel Engine and Design Modification |
| Yuan Xiaojun,Teng He,Zeng Xiaochun,Li Bing,Luo Jiankun,Tu Honghai,Xiong Le,Luo Fusheng |
| Jiangling Motor Co., Ltd.,Jiangxi Nanchang 330001 |
| Abstract:Root causes for early stage turbo-bearing failure, and insufficient piston cooling encountered in a turbo-charged diesel engine were analyzed via computer simulation employing 1D hydraulic analysis tool FLOWMASTER，The simulation model for the lubrication system was established to analyze the rationality of the opening parameters of the bypass valve on the lubrication system. It was found that the problems aforementioned were due to improper opening pressures of the bypass valve for the assembly of the oil filter and oil cooler, and of the piston cooling jets. Based on simulation results, opening pressures for these two control valves were optimized，the modified lubrication system had no above problems anymore，the reliability of the engine was improved. |
| Key words: turbo-charged diesel engine lubrication system simulation research modification design |
