| 高压共轨大功率柴油机喷油嘴内部两相流动仿真研究 |
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| 引用本文： | 陈小敏,常汉宝,秦建文.高压共轨大功率柴油机喷油嘴内部两相流动仿真研究[J].柴油机,2011,33(6):25-28. |
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| 作者姓名： | 陈小敏 常汉宝 秦建文 |
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| 作者单位： | 海军工程大学船舶与动力学院,湖北武汉,430033 |
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| 基金项目： | 基金项目:江苏省科技成果转化专项资金项目 |
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| 摘 要： | 用AVL-FIRE软件建立了TBD234V6高压共轨大功率柴油机喷油器喷嘴内部流动的仿真计算模型；研究了共轨大功率柴油机喷油器主要结构参数，包括喷孔直径、喷孔个数、喷孔长径比、喷射夹角等，对燃油在喷嘴内部流动的影响。分析表明：喷嘴结构参数不同会使各喷孔内气穴产生的时刻、分布区域以及强度不一致，最终影响各喷孔的流量特性，...
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| 关 键 词： | 大功率柴油机 高压共轨 喷油嘴 结构参数 |
| 收稿时间： | 2011/4/2 0:00:00 |
Simulative Study on the Flow in the Nozzle Hole of High-pressure Common Rail Injector of Large-power Diesel Engine |
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| Chen Xiaomin,Chang Hanbao and Qin Jianwen.Simulative Study on the Flow in the Nozzle Hole of High-pressure Common Rail Injector of Large-power Diesel Engine[J].Diesel Engine,2011,33(6):25-28. |
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| Authors: | Chen Xiaomin Chang Hanbao and Qin Jianwen |
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| Affiliation: | ( College of Marine and Power, Naval University of Engineering, HubeiWuhan 430033) |
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| Abstract: | The simulative calculation model of the oil flow in the nozzle hole of diesel engine with high- pressure common rail injector was built up by AVL-FIRE. The influence of main geometric parameters of high-pressure common rail injector （including diameter, number, length/diameter, spray angle etc. ） on flow rate of fuel oil in the injector hole is studied. The analysis shows that the differences of injector＇ s ge- ometric parameters may result in inconsistent of air sink occurring time in injector holes, distributing are- as and strength, and ultimately influence the flow characteristics of the injector holes, which could be transferred to the outlet of injector holes and affect the spray characteristics. |
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| Keywords: | large power diesel engine high pressure common rail system fuel injector geometric parameters |
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