Quantitative Research on Gas Exchange Loss of Internal Combustion Engine

摘要：

　　At present,there is no theoretical equation for quantitatively calculating gas exchange losses of an internal combustion engine.In order to accurately research on change rules of the gas exchange losses during the working process of internal combustion engines,the equation for quantitative calculating the gas exchange losses should be established.This work presents a concept of Newtonian ideal airflow and an energy equation for the Newtonian ideal airflow,based on theoretical analysis.Experimental researches were also conducted by employing a LJ491QE1 gasoline engine and the gas exchange losses of the engine were calculated quantitatively by using the energy equation for Newtonian ideal airflow.The results shows that the intake loss power of the naturally aspirated port fuel injection gasoline engine make up a higher percentage of its effective output power under low load engine operating states,and the exhaust loss power of the engine make up a higher percentage of its effective output power under high load engine operating states.The theory for calculating the gas exchange losses quantitatively presented in this paper has important meaning to further research on the actual circulation loss of the internal combustion engines.

关键词： internal combustion engine intake loss exhaust loss gas exchange loss

作者: Jinguang Liang

作者单位: Department of Machinery and Power Engineering,Yingkou Institute of Technology,Yingkou 115000,China

会议类型: 国际会议

会议名称: 2017年第2届联合国际信息技术、机械与电子工程国际会议(JIMEC2017)

会议地点: 重庆

会议语种:英文

页码: 601-606

在线出版日期: 2017-10-04（万方平台首次上网日期，不代表论文的发表时间）