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高壓共軌噴油器噴射特性實(shí)驗(yàn)與仿真
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國(guó)家自然科學(xué)基金資助項(xiàng)目（51076014）;河北省教育廳科研計(jì)劃資助項(xiàng)目（Z2009465）


Numerical-experimental Investigation of Injection Characteristics of High Pressure Common Rail Injector
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    摘要:

    采用實(shí)驗(yàn)與數(shù)值模擬相結(jié)合的方法,，進(jìn)行了不同控制參數(shù)：共軌壓力,、噴油脈寬條件下高壓共軌噴油器的噴射特性研究,。通過(guò)實(shí)驗(yàn)數(shù)據(jù)總結(jié)了電磁式噴油器噴油量,、噴油率,、針閥開啟延遲與關(guān)閉延遲,、噴油持續(xù)期等噴射特性。利用AMESim軟件建立的高壓共軌燃油系統(tǒng)模型進(jìn)行仿真計(jì)算,，與實(shí)測(cè)噴油器噴油率結(jié)果進(jìn)行了對(duì)比驗(yàn)證,，分析了共軌系統(tǒng)噴射過(guò)程中噴油器內(nèi)液力過(guò)程和針閥運(yùn)動(dòng)特性，得到了高壓共軌噴油器噴射特性隨共軌壓力和噴油脈寬的變化機(jī)理和規(guī)律,。

    Abstract:

    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.

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蘇海峰,張幽彤,王尚勇,孫帥.高壓共軌噴油器噴射特性實(shí)驗(yàn)與仿真[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2011,42(1):22-26,，30. Su Haifeng, Zhang Youtong, Wang Shangyong, Sun Shuai. Numerical-experimental Investigation of Injection Characteristics of High Pressure Common Rail Injector[J]. Transactions of the Chinese Society for Agricultural Machinery,2011,42(1):22-26，30.

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