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(一) 前言随着柴油机的不断强化和节能及废气排放物限制要求的日益苛刻,柴油机燃料喷射系统正在向高喷油速率及高喷射压力的方向发展。但是,随着喷射压力的提高,又会导致二次喷射、穴蚀、喷油泵凸轮的疲劳损坏等弊病。所以,究竟把喷射压力控制到什么数值才能同时满足性能和可靠性的要求?在实际柴油机中,往往需要对喷射系统作进一步的修改设计或发展,各项设计参数改动后,对喷射压力
(I) Preface As diesel engines continue to intensify and energy-saving and exhaust emission restrictions increasingly stringent requirements, diesel fuel injection system is to the high injection rate and high injection pressure direction. However, with the increase of injection pressure, secondary ejection, cavitation and fatigue damage of the fuel injection cam are also caused. So, what the injection pressure control to what value can both meet the performance and reliability requirements? In the actual diesel engine, often need to make further modifications to the injection system design or development, the design parameters of the change, the injection pressure