| 柴油机高压燃油泵的改进设计研究 |
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| 引用本文： | 张辉亚,张煜盛,张培榕,欧阳光耀. 柴油机高压燃油泵的改进设计研究[J]. 华中科技大学学报(自然科学版), 2002, 30(3): 43-45 |
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| 作者姓名： | 张辉亚 张煜盛 张培榕 欧阳光耀 |
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| 作者单位： | 1. 华中科技大学能源与动力工程学院,430074
2. 海军工程大学动力工程学院 |
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| 基金项目： | 高等学校重点实验室访问学者基金资助项目 |
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| 摘 要： | 采用轴对称有限元分析方法，对燃油泵柱塞和柱塞套的工作变形进行了分析，针对普通燃油泵因燃油渗漏而难以建立高燃油压力的问题，利用柔性可变截面控制技术，对燃油泵柱塞偶件进行了改进设计研究。研究结果表明，改进后的油泵柱塞副的配合间隙可随燃油压力而变化；在燃油压力升高时，配合间隙呈现出逐渐减小的趋势。
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| 关 键 词： | 改进设计 柴油机 燃油系统 高压燃油泵 有限元分析 柔性可变截面控制 柱塞偶件 |
| 文章编号： | 1671-4512(2002)03-0043-03 |
| 修稿时间： | 2001-07-20 |
Study on structural improvement of high-pressure diesel fuel pump |
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| Zhang Huiya Zhang Yusheng Zhang Peirong Ouyang Guangyao Postgraduate, College of Energy , Power Eng.,Huazhong Univ. of Sci. , Tech.,Wuhan ,China.. Study on structural improvement of high-pressure diesel fuel pump[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 2002, 30(3): 43-45 |
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| Authors: | Zhang Huiya Zhang Yusheng Zhang Peirong Ouyang Guangyao Postgraduate College of Energy & Power Eng. Huazhong Univ. of Sci. & Tech. Wuhan China. |
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| Affiliation: | Zhang Huiya Zhang Yusheng Zhang Peirong Ouyang Guangyao Postgraduate, College of Energy & Power Eng.,Huazhong Univ. of Sci. & Tech.,Wuhan 430074,China. |
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| Abstract: | In this paper, an axisymmetric finite element analysis is used to investigate the deformation of plunger and plunger sleeve of high pressure fuel pump in diesel engine. In the light of existing thorny problem of producing higher fuel injection pressure due to clearance leakage between plunger and plunger sleeve of common fuel injection system, some refinements into plunger pinion are introduced by making use of techniques named flexible and variable cross section plunger. The clearance values of the plunger pinion before and after refinement are calculated and the results are discussed. The computational results show that clearance between plunger and plunger sleeve of refined fuel pump has different value when fuel injection pressure is altered and it tends to be less as fuel pressure increases. |
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| Keywords: | diesel fuel system high pressure fuel pump finite element analysis |
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