天然气内燃机电控喷射系统的开发

Research on electrical controlled injection of CNG engine

阐述了顺序多点喷射天然气内燃机电控喷射系统的构成及工作原理,电控系统精确控制各气缸的点火提前角、天然气喷射量和喷射时刻;利用氧传感器实现闭环控制,内燃机采用电控后表现出良好的动力和排放性能。

The electrically controlled sequential multiple injection system of CNG engine is presented in detail in this paper, an electronic controlled system controls exacdy the ignition timing, injection quantity and timing of CNG.Through close loop control by an oxygen sensor.The electronically controlled engine test result shows that the CNG engine has good dynamic capability and the exhaust emission performance.