| 小型直喷柴油机循环变动及影响因素分析 |
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| 引用本文： | 闫伟,张浩,路剑峰,赵荣泳.小型直喷柴油机循环变动及影响因素分析[J].车用发动机,2003(3):15-17. |
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| 作者姓名： | 闫伟 张浩 路剑峰 赵荣泳 |
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| 作者单位： | 同济大学电信工程学院,上海,200092 |
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| 摘 要： | 研究了采用低旋流进气,浅ω型燃烧系统的SD2100直喷柴油机的循环变动及其影响因素,分析了标定工况下的最高燃烧压力(P_(max))及其所在时刻(φ_A)、最大压力升高率(λ_p)及其出现时刻(φ_B)、平均指示压力(P_i)的循环变动;对供油系统中的供油提前角(θ_(fa))、启喷压力(P_(jo))及喷油嘴孔径(D)等参数进行调整,分析了对循环变动的影响,并综合燃油经济性指标,得到最优匹配。
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| 关 键 词： | 循环变动 供油系统 浅ω型燃烧系统 柴油机 |
| 文章编号： | 1001-2222(2003)03-0015-03 |
| 修稿时间： | 2002年11月1日 |
Study of Cycle-to-Cycle Variation and Influencing Factor on Small DI Diesel Engine |
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| YAN Wei,ZHANG Hao,LU Jian-feng,ZHAO Rong-yong.Study of Cycle-to-Cycle Variation and Influencing Factor on Small DI Diesel Engine[J].Vehicle Engine,2003(3):15-17. |
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| Authors: | YAN Wei ZHANG Hao LU Jian-feng ZHAO Rong-yong |
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| Abstract: | The characteristics of operating cycle variations for shallow-ω-type combustion system on SD2100 diesel engine are tested and measured. The analysis on the cycle-to-cycle variation of the peak pressure and angle- pmax, A , the largest rising rate of pressure and angle- λp, B,the average instructing pressure- pi on specific performance are studied.Then influences of cycle-to-cycle variation are analyzed when the fuel supply system parameters such as the fuel supply time-θfs,the pressure of injection- pjo ,the nozzle hole are adjusted, concern to the specific fuel consumption,the optimum match is got. |
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| Keywords: | operating cycle variation fuel supply system shallow-ω-type combustion diesel engine |
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