Position: Home > Articles > Experimental Research on Air Fuel Ratio Dynamic Characteristics for an Electronic Fuel Injection Spark Ignition Engine
Transactions of the Chinese Society for Agricultural Machinery
2002,33
(2)
40-42
电控燃油喷射汽油机动态空燃比特性实验研究
作 者：
李志军;刘书亮;赵振武;刘德新;王莉
单 位：
天津大学机械工程学院;天津大学内燃机燃烧学国家重点实验室;天津大学能源与自动化学院 300072 天津市
关键词：
电控燃油喷射;汽油机;空燃比
摘 要：
通过自行研制的火花点火发动机电控系统调节不同的电源电压和发动机转速 ,在 TJ376 Q发动机上测取了喷油器的动态喷射特性 ,用热线式空气流量计测量了进气空气量 ,研究了 TJ376 Q发动机的动态空燃比特性 ,结果表明 :电源电压降低使动态喷油量减少 ,发动机转速降低也使动态喷油量减小
译 名：
Experimental Research on Air Fuel Ratio Dynamic Characteristics for an Electronic Fuel Injection Spark Ignition Engine
作 者：
Li Zhijun Liu Shuliang Zhao Zhenwu Liu Dexin Wang Li (Tianjin University)
关键词：
Electronic fuel injection, Spark ignition engine, Air fuel ratio
摘 要：
The dynamic injection characteristics of the injection units in TJ376Q spark ignition engine were studied through adjusting the voltage of power supply and engine speeds with the developed lean burn electronic fuel injection system in spark ignition engine and inlet air rate of flow was measured by using a hot line type air flowmeter in this paper. The experiments show that the fuel quantity of the dynamic injection units will be lower when power supply voltage is reduced or when the engine speed is slower. In order to research dynamic injection characteristics of the injection unit, apart from an accurately measuring of the inlet air flow rate, the parameters, such as power supply voltage and engine speed, which being affected the dynamic injection characteristics of the injection unit, should also be determined carefully.
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