大功率气体机引燃油喷射正时与油量对各缸不均匀性影响的研究  

The Study of the In homogeneity of the Cylinder of High Power Gas Engine Based on the Injection Timing and Fuel Injection Quatity

作　　者：冯旭 杜兵 张鹏 

机构地区：[1]上海船舶设备研究所,上海200030 [2]重庆红江机械有限责任公司,重庆402160

出　　处：《内燃机》2017年第5期5-8,12,共5页Internal Combustion Engines

基　　金：工信部"高技术船舶科研计划-船用低速机工程(一期)研制经费资助

摘　　要：气体机各缸的不均匀性和燃烧的不充分有直接关系,我们针对引燃柴油油量和喷油提前角两个变量进行对比研究,一方面,立足于两者对燃烧滞燃期、缸内压力升高率、爆缸等变化规律,对大功率气体机工作的各缸不均匀性进行关联分析;另一方面,引入循环变动量,针对引燃柴油量和喷油正时,对气体机的燃烧稳定性、柴油的引燃作用展开量化分析研究。实验表明,过高的天然气替代率会增加气体机工作的各缸不均匀性,调节喷油提前角可以部分缓解高替代率造成的不均匀性。The inhomogeneity of the cylinder is directly related to the intensity of combustion and the inadequacy of combustion.in this paper the two variables of diesel oil and oil injection are compared,On the one hand,the change rule of factor such as the ignition delay,the increase of pressure in the cylinder and the explosion are considered in. On the other hand the concept of cyclic variation is introduced,this paper analyzes the combustion stability of the gas engine and the ignition effect of diesel oil and fuel injection are positive.The results show that the very higher uniformity of cylinders would get worse when replacement rate of natural gas is high;On the contrary, adjusting the advance angle of canpartially alleviate the inhomogeneity of high replacement rate.

关 键 词：各缸不均匀性 大功率气体机 引燃柴油喷油提前角 天然气替代率 引燃柴油 爆缸 循环变动量 

分 类 号：TK464[动力工程及工程热物理—动力机械及工程]