| 高压共轨多次喷射的温度特性 |
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| 引用本文： | 苏海峰,张幽彤,梁建伟.高压共轨多次喷射的温度特性[J].北京理工大学学报,2013,33(10):1027-1031. |
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| 作者姓名： | 苏海峰 张幽彤 梁建伟 |
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| 作者单位： | 北京理工大学机械与车辆学院,北京 100081;石家庄职业技术学院机电系,河北,石家庄050081;北京理工大学机械与车辆学院,北京,100081;石家庄职业技术学院机电系,河北,石家庄050081 |
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| 基金项目： | 国家自然科学基金资助项目(51076014);石家庄职业技术学院基金资助项目(Z20120002) |
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| 摘 要： | 高压共轨多次喷射的温度特性是影响多次喷射精确控制的重要因素. 使用高压共轨多次喷射实验台,进行了多次喷射温度特性的实验研究. 通过实验数据系统地总结了燃油温度对单次喷射油量及压力波动的周期特性、振幅特性的影响规律,用声速原理和水击理论分析了压力波动的温度特性:温度升高,波动的周期增加,振幅峰值先增大后减小. 结果表明多次喷射中油量波动的温度特性由温度对压力波动和喷射特性产生的共同影响决定.
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| 关 键 词： | 高压共轨 多次喷射 油量波动 温度特性 |
| 收稿时间： | 2012/10/10 0:00:00 |
The Temperature Characteristic of Multi-Injection in High Pressure Common-Rail System |
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| SU Hai-feng,ZHANG You-tong and LIANG Jian-wei.The Temperature Characteristic of Multi-Injection in High Pressure Common-Rail System[J].Journal of Beijing Institute of Technology(Natural Science Edition),2013,33(10):1027-1031. |
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| Authors: | SU Hai-feng ZHANG You-tong and LIANG Jian-wei |
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| Institution: | 1.School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China;Department of Machinery and Electronics, Shijiazhuang Vocational Technology Institute, Shijiazhuang, Hebei, 050081, China2.School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China3.Department of Machinery and Electronics, Shijiazhuang Vocational Technology Institute, Shijiazhuang, Hebei, 050081, China |
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| Abstract: | The temperature characteristic of multi-injection taking place in the high pressure common rail (CR) system plays a major role in controlling of multi-injection. A detailed experimental study on temperature characteristic of multi-injection is conducted on the high-pressure common rail multi-injection test bench. The law of temperature influence on characters of period and amplitude of water hammer pressure wave and injection quality is summarized. The period of pressure wave is increased with temperature. And the max amplitude of pressure wave is increased at first and then decreased with temperature. Temperature characters of water hammer pressure wave was analyzed based on sound speed and water hammer phenomenon. The temperature characteristic of multi-injection fuel quality fluctuation is caused by the temperature influence on both pressure wave and injection characteristic. |
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| Keywords: | common rail multi-injection fuel quality fluctuation temperature characteristic |
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