二甲醚发动机低压共轨系统轨压特性研究 |
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引用本文: | 张光德,李梦,谢露,孙敬.二甲醚发动机低压共轨系统轨压特性研究[J].武汉冶金科技大学学报,2012(3):211-214,218. |
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作者姓名: | 张光德 李梦 谢露 孙敬 |
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作者单位: | 武汉科技大学汽车与交通工程学院,湖北武汉430081 |
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基金项目: | 国家自然科学基金资助项目(50975212);武汉科技大学校青年基金资助项目(2009xz30). |
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摘 要: | 以二甲醚发动机燃油系统为研究对象,建立发动机低压共轨系统的仿真模型,分析影响共轨管压力建立时间和压力波动的主要因素,并探讨了共轨管内的燃油压力特性。结果表明,共轨管的容积、内径、长度、长径比、油泵供油压力对共轨压力特性的影响较大,合理地选择共轨管尺寸和供油压力,既能维持共轨压力的稳定,也能保持较短的压力响应时间。
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关 键 词: | 二甲醚 发动机 轨压特性 仿真 |
Fuel pressure characteristics of low-pressure common-rail system of the dimethyl ether engine |
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Authors: | Zhang Guangde Li Meng Xie Lu Sun Jing |
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Affiliation: | (College of Automobile and Traffic Engineering, Wuhan University of Science and Technology, Wuhan 430081, China) |
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Abstract: | The fuel system of the dimethyl ether (DME) engine was studied, and the simulation model of low-pressure common-rail system of the DME engine was established. Main factors that influence the set-up time of the pressure and the pressure waves of common rail were analyzed, and the fluid pressure characteristics in the common-rail were discussed. The result shows that the volume, inner diameter, length, L/D of common-rail and supply pressure have significant influence on common-rail pressure characteristics. In order to keep a steady pressure of common-rail and a short pressure re- sponse time, suitable common-rail size and supply pressure should be selected. |
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Keywords: | DME engine common-rail pressure characteristics simulation |
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