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| 直喷式柴油机喷油特性的测试分析 | |
| 引用本文： | 乔信起,宋永臣,颜淑霞,高希彦,陈家骅,黄震.直喷式柴油机喷油特性的测试分析[J].农业机械学报,2004,35(3):37-40. |
| 作者姓名： | 乔信起 宋永臣 颜淑霞 高希彦 陈家骅 黄震 |
| 作者单位： | 1. 上海交通大学机械与动力工程学院,副教授,博士后,200030,上海市 2. 大连理工大学动力工程系,副教授,博士,116024,大连市 3. 上海交通大学人事处,工程师 4. 大连理工大学动力工程系,教授,博士生导师 5. 上海交通大学机械与动力工程学院,教授,博士生导师 |
| 基金项目： | 高等学校博士学科点专项科研基金资助项目 (项目编号 :9414 116) |
| 摘 要： | 为分析柴油机的燃烧过程和性能，在喷油泵试验台上用W．Bosch长管法研究了喷油过程。介绍了试验装置和原理，分析了测试精度。试验结果表明：喷油管内气泡产生与压力波尾部形状有关；长管内残余压力很低，燃油声速接近理论声速；喷油率图近似于梯形，燃油喷射呈“先急后缓”的特征；喷油压力、喷油始点、喷油持续角和喷油率均取决于柴油机转速和负荷。 |
| 关 键 词： | 直喷式柴油机 喷油特性 测试分析 W．Bosch长管法 试验装置 |
| 修稿时间： | 2002年10月24 |
Measurement and Analysis of Fuel Injection Characteristics of a Direct Injection Diesel Engine |
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| Qiao Xinqi,Yan Shuxia,Huang Zhen.Measurement and Analysis of Fuel Injection Characteristics of a Direct Injection Diesel Engine[J].Transactions of the Chinese Society of Agricultural Machinery,2004,35(3):37-40. | |
| Authors: | Qiao Xinqi Yan Shuxia Huang Zhen |
| Institution: | Qiao Xinqi Yan Shuxia Huang Zhen(Shanghai Jiaotong University )Song Yongchen Gao Xiyan Chen Jiahua(Dalian University of Technology ) |
| Abstract: | In order to analyze the combustion process and performance of a diesel engine,the fuel injection process was investigated by using W.Bosch long-tube method on an injection pump test stand. The measuring apparatus and the measuring principle and accuracy were presented. The experimental results show that the bubble emergence in high-pressure line relates to the tail configuration of the pressure wave,the residual long-tube pressure is very low,and the sound speed in the tube approaches the theoretical value. The injection rate pattern approximates a trapezoid with a steep front lateral side and a gentle back one. The injection pressure,timing,duration and rate depend on the engine speed and load. |
| Keywords: | Direct injection diesel engines Fuel injection characteristics Injection rate Measurement |
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