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电控单体泵喷射特性关键影响因素研究

, PP. 14-20

Keywords: 电控单体泵,燃油喷射系统,喷射特性,相关性分析

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Abstract:

通过数值模拟揭示了凸轮型线速度、柱塞直径、高压油管长度、高压油管内径等关键影响因素对喷射特性中的喷油压力、循环喷油量、喷油持续期和供油系数的影响规律。利用AMESim建模,对比实验数据验证了仿真模型的准确性。应用实验设计的方法,考虑交互作用,进行了相关性分析,得出各种因素和喷射特性参数之间的相关系数。结果表明各影响因素的单因子及交互作用因子均与喷射特性存在着相关性,且随着转速的变化而呈复杂的变化规律。

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