微型定容多次燃油喷射系统高速响应特性仿真

张奇; 杨凯; 徐国强; 杜发荣

微型定容多次燃油喷射系统高速响应特性仿真

1.
北京航空航天大学交通科学与工程学院,北京 100191
2.
北京航空航天大学能源与动力工程学院,北京 100191

基金项目: 航空基金(2011ZB51017)

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出版历程
- 收稿日期: 2012-05-18
- 刊出日期: 2012-10-28

Design and simulation of electronic micro multiple fixed-volume fuel injection system

1.
College of Transportation Science and Technology, Beijing University of Aeronautics and Astronautics,Beijing 100191,China
2.
School of Jet Propulsion, Beijing University of Aeronautics and Astronautics,Beijing 100191,China

摘要

摘要: 针对小排量发动机转速范围大、工作循环喷油量小的特点,提出了一种微型定容多次燃油喷射系统结构,建立了系统电、磁、液、机耦合模型,仿真计算了从输入电压到喷射输出的动态响应特性,分析了影响系统高速特性的关键因素.结果表明:该喷射系统响应频率可达到1000Hz,响应时间可以满足小排量发动机最高转速要求,具备工程可实现性.
- 喷油系统 /
- 定容多次 /
- 膜片阀 /
- 变刚度 /
- 响应特性
Abstract: According to small-displacement gasoline engine's wide speed range and small fuel requirement, a new kind of Electronic Micro Multiple Fixed-Volume Fuel Injection System was proposed, and then the electronic-magnetic-mechanic-hydraulic coupled mathematical system model was built,after that the transient response characteristic from input voltage actuation to output fuel injection was analyzed, also the key parameters were deduced. Results show that injection system's high speed response frequency can reach 1000Hz which meets the highest engine speed requirements of small displacement engine, and this new injection system work principle is correct in theory.
- electronic fuel injection(EFI) /
- multiple fixed-volume /
- diaphragm check valve /
- variable stiffness spring /
- response characteristic

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参考文献(15)

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