| 燃油柱塞泵配流机构泄漏模型 |
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| 引用本文： | 王彬,周华,叶志锋.燃油柱塞泵配流机构泄漏模型[J].南京航空航天大学学报,2011,43(2). |
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| 作者姓名： | 王彬 周华 叶志锋 |
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| 作者单位： | 1. 南京航空航天大学能源与动力学院 南京 210016
2. 浙江大学流体传动及控制国家重点实验室 杭州 310027 |
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| 基金项目： | 南京航空航天大学基本科研业务费专项科研(NS2010046)资助项目; 教育部高等学校博士学科点专项科研基金(20070335143)资助项目 |
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| 摘 要： | 泄漏量是微缝隙密封的重要性能参数之一.燃油柱塞泵运行时配流机构密封面为楔形而非完全平行,为准确计算泄漏量继而分析燃油泵的容积效率,获得合适的密封缝隙高度,提出一种楔形密封缝隙的泄漏模型,推导了基于平行与楔形密封面间隙流动的配流机构泄漏量公式.该模型考虑了定密封件的结构尺寸和动密封件倾侧角的影响.仿真结果表明,膜厚对配流机构泄漏流量的影响较大,楔形与平行密封泄漏量随膜厚增加差异增大,供油压力高时尤为明显.
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| 关 键 词： | 燃油柱塞泵 配流机构 楔形密封 泄漏量 供油压力 |
Leakage Model of Distributing Mechanism in Fuel Piston Pump |
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| Wang Bin
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Zhou Hua
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Ye Zhifeng.Leakage Model of Distributing Mechanism in Fuel Piston Pump[J].Journal of Nanjing University of Aeronautics & Astronautics,2011,43(2). |
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| Authors: | Wang Bin Zhou Hua Ye Zhifeng |
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| Institution: | Wang Bin1,Zhou Hua2,Ye Zhifeng1(1.College of Energy and Power Engineering,Nanjing University of Aeronautics & Astronautics,Nanjing,210016,China,2.State Key Laboratory of Fluid Power Transmission and Control,Zhejiang University,Hangzhou,310027,China) |
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| Abstract: | Leakage rate is one of the most important parameters in micro gap sealing.In fuel piston pump,the distributing mechanism runs with wedge but not absolutely parallel to sealing faces.In order to analyze volumetric efficiency of the pump and get the proper gap height,a more accurate calculation of the leakage from distributing mechanism is needed.Therefore,a new leakage model for wedge sealing gap is presented and the leakage formulas are deduced based on the wedge gap and the parallel gap,respectively.The si... |
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| Keywords: | fuel piston pump distributing mechanism wedge gap sealing leakage rate supply pressure |
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