| 250 MPa共轨系统的压力波动特性及燃油物性参数试验研究 |
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| 引用本文： | 张志昊,杨青,孙柏刚,吴东伟,徐丹.250 MPa共轨系统的压力波动特性及燃油物性参数试验研究[J].北京理工大学学报,2019,39(11):1113-1117. |
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| 作者姓名： | 张志昊 杨青 孙柏刚 吴东伟 徐丹 |
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| 作者单位： | 北京理工大学 机械与车辆学院, 北京 100081 |
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| 基金项目： | 国际合作项目（2013DFR70170） |
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| 摘 要： | 对喷射压力达到250 MPa的超高压共轨燃油系统进行试验研究，得到不同压力与温度条件下高压油管内的压力波动特性.利用喷油器端与共轨管端压力波动的对比计算得出压力波传播速度、燃油与高压油管的总体积弹性模量，并得到了喷射压力在180～250 MPa范围内，燃油温度在20～40℃范围内压力波传播速度和总体积弹性模量的计算公式.
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| 关 键 词： | 超高压共轨系统 压力波动 压力波传播速度 总体积弹性模量 |
| 收稿时间： | 2018/7/26 0:00:00 |
Experimental Study on Pressure Fluctuation Characteristics and Fuel Property Parameters of 250 MPa Common Rail System |
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| ZHANG Zhi-hao,YANG Qing,SUN Bai-gang,WU Dong-wei and XU Dan.Experimental Study on Pressure Fluctuation Characteristics and Fuel Property Parameters of 250 MPa Common Rail System[J].Journal of Beijing Institute of Technology(Natural Science Edition),2019,39(11):1113-1117. |
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| Authors: | ZHANG Zhi-hao YANG Qing SUN Bai-gang WU Dong-wei and XU Dan |
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| Institution: | School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | 250 MPa ultra-high pressure common rail fuel system was tested, the pressure fluctuation characteristics under different pressure and temperature conditions were obtained. Then, the pressure wave velocity and the total volume elastic modulus of the fuel and high pressure pipe were obtained according as the pressure fluctuation between the injector end and the common rail end. Finally, the calculation formula of the pressure wave velocity and the total volume elastic modulus were obtained for the injection pressure in the range of 180 to 250 MPa and the temperature in the range of 15 to 40℃. |
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| Keywords: | ultra-high pressure common rail system pressure fluctuation pressure wave velocity total volume elastic modulus |
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