Simulation and Experimental Research on Oil Flow Loss of Diesel Engine at Plateau

doi:10.3969/j.issn.1000-1093.2015.02.001

Abstract

Abstract:

For low oil pressure in diesel engine at plateau, the lubrication system of the diesel engine is researched through experimental test, theoretical analysis and CFD simulation. The results show that the ambient pressure affects the basic pressure in the whole oil passage. The inlet pressure of the oil pump equivalently decreases with the increase in altitude, resulting in lower ambient pressure . In this condition, asuction appears in the pump, which may reduce the main oil pressure significantly. As the flow rate keeps constant, the pipe flow loss decreases gradually with the increase in pipe diameter.Though the flow loss rate becomes smaller,the right angle junction has great influence on the flow loss, and for r/R≥ 1.5, the change of flow loss tends to be stabile. The plateau test results show that the engine oil pressure of the improved scheme is increased by about 30% at low rotating speed, and the oil pressure is increased by more than 50% at medium and high rotating speeds.

Key words: power machinery engineering, plateau, lubrication systems, oil pressure, experiment

CLC Number:

TK421.9

ZHANG Chang-ling, LIU Fu-shui, SHANG Hai-kun, WANG Pei, ZHANG Zheng, WANG Yan. Simulation and Experimental Research on Oil Flow Loss of Diesel Engine at Plateau[J]. Acta Armamentarii, 2015, 36(2): 193-199.

References

［1］何星，王宪成.高原地区车辆柴油机使用状况实车测试分析［J］.装甲兵工程学院学报,2014,28(1):34-38.
HE Xing,WANG Xian-cheng.Test analysis of vehicle diesel engine service condition in plateau［J］.Journal of Academy of Armored Force Engineering, 2014,28(1):34-38.(in Chinese)
［2］黄小辉，毕小平.坦克动力装置润滑系统计算与分析［J］.装甲兵工程学院学报,2005,19(2):47-50.
HUANG Xiao-hui,BI Xiao-ping.Caculation and analysis on the lubrication system of tank powertrain［J］.Journal of Academy of Armored Force Engineering, 2005,19(2):47-50.(in Chinese)
［3］陈铭，王成焘.车用内燃机润滑系统的状态监测技术［J］.内燃机工程，2000,21(3):64-69.
CHEN Ming,WANG Cheng-tao.Condition monitoring techniques for lubrication system of automotive engine［J］.Chinese Internal Combustion Engine Engineering,2000,21(3):64-69.(in Chinese)
［4］王宪成，胡俊彪，和穆,等.海拔高度对重型柴油机缸内机油消耗影响研究［J］.内燃机工程，2014,35（1）：115-120.
WANG Xian-cheng,HU Jun-biao,HE Mu,et al.Research on effect of high altitude environment on in-cylinder lubricant consumption in heavy duty diesel engine［J］.Chinese Internal Combustion Engine Engineering, 2014,35（1）：115-120.(in Chinese)
［5］李文学，葛蕴珊,李骏，等.低排放柴油机的机油消耗量控制技术研究［J］.内燃机工程，2004,25（6）：1-3.
LI Wen-xue,GE Yun-shan,LI Jun, et al.Lubrication oil consumption control of low emission diesel engine［J］.Chinese Internal Combustion Engine Engineering, 2004,25（6）：1-3. (in Chinese)
［6］ Froelund K,Owens E C,Frame E,et al.Impact of lubricant oil on regulated emissions of alight-duty Mercedes-Benz OM 611 CIDI-engine［C］∥International Spring Fuels & Lubricants Meeting & Exhibition. Orlando, Florida:SAE,2001-01-1901.
［7］张现成，许伯彦.考虑针阀运动的LPG高压旋流喷油器内外流动过程的数值解析［J］.内燃机学报，2013,31（3）：228-234
ZHANG Xian-cheng,XU Bo-yan.Numerical analysis of internal flow and spray for a LPG high pressure swirl injector with needle movement［J］.Transactions of CSICE, 2013,31（3）：228-234. (in Chinese)
［8］许伯彦，张勇，耿德强，等.液态LPG喷射发动机喷嘴内部气穴现象的数值解析［J］.内燃机工程，2009,30（6）：10-15.
XU Bo-yan,ZHANG Yong,GENG De-qiang,et al.Simulation of cavitation phenomenon in injector of liquid phase LPG engine［J］.Chinese Internal Combustion Engine Engineering, 2009,30（6）:10-15. (in Chinese)

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