首页|高压共轨喷油器喷射特性实验与仿真

高压共轨喷油器喷射特性实验与仿真

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采用实验与数值模拟相结合的方法,进行了不同控制参数:共轨压力、喷油脉宽条件下高压共轨喷油器的喷射特性研究.通过实验数据总结了电磁式喷油器喷油量、喷油率、针阀开启延迟与关闭延迟、喷油持续期等喷射特性.利用AMESim软件建立的高压共轨燃油系统模型进行仿真计算,与实测喷油器喷油率结果进行了对比验证,分析了共轨系统喷射过程中喷油器内液力过程和针阀运动特性,得到了高压共轨喷油器喷射特性随共轨压力和喷油脉宽的变化机理和规律.
Numerical-experimental Investigation of Injection Characteristics of High Pressure Common Rail Injector
By an integrated numerical-experimental approach, the injection characteristics of a production high pressure common rail solenoid injector were investigated on kinds of control parameters include rail pressure and energizing time. The characteristics of injection quality, injection rate, needle opening and closure delays, injection temporal length were summarized via experiment carried out on a test bench. A model of high pressure common rail injection system based on AMESim was used to calculate simulation results, compare and approve the experimental injection data. The injector hydraulic process and lift process of needle were simulated and analyzed. The mechanism and rules of injection characteristics depending on rail pressure and energizing time were summarized.

InjectorHigh pressure common railInjection characteristicsRail pressureEnergizing time

苏海峰、张幽彤、王尚勇、孙帅

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北京理工大学机械与车辆学院,北京,100081

石家庄职业技术学院机电系,石家庄,050081

喷油器 高压共轨 喷射特性 共轨压力 喷油脉宽

国家自然科学基金河北省教育厅科研计划资助项目

51076014Z2009465

2011

农业机械学报
中国农业机械学会 中国农业机械化科学研究院

农业机械学报

CSTPCDCSCD北大核心EI
影响因子:1.904
ISSN:1000-1298
年,卷(期):2011.42(1)
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