摘要
以某V型增压水冷柴油机为原型机,新开发HC8V132G机组用天然气发动机。对柴油机进行冷却系统、燃烧系统、进气系统等重新设计,匹配燃气供给系统、点火系统和电控系统。对发动机进行了传感器和性能标定。采用高效稀薄燃烧控制策略,通过氧传感器采集尾气中的O_2含量计算空燃比,控制燃气Trim阀开度,实现燃气进气量的调整,完成发动机实际空燃比和设定空燃比闭环控制。试验结果表明,新开发的机组用天然气发动机达到了功率设计要求。
Taking a v-shaped pressurization water-cooled diesel engine as the prototype, the newly developed HC8V132 G genset using natural gas engines. For diesel engine cooling system and combustion system, air intake system, such as redesign, matching gas supply system, ignition system and electric control system. The engine for the sensor calibration and performance. Efficient lean combustion control strategy, through the calculation of O_2 content in exhaust gas oxygen sensor acquisition air-fuel ratio, control gas Trim valve opening, to realize the adjustment of gas into the air, complete engine air-fuel ratio and the actual set air-fuel ratio closed-loop control. The test results show that the new development of chiller with natural gas engine has reached the design requirements.
出处
《内燃机》
2016年第6期31-33,共3页
Internal Combustion Engines
关键词
天然气
发动机
稀薄燃烧
标定
nature gas
engine
lean combustion
calibration
