【摘要】 在某柴油机基础上通过改进燃烧系统和进气系统,设计高能点火系统、燃料供给系统、电控单元、传感器及执行器,并加装三元催化转换器,采用闭环空燃比控制等措施,研制了压缩天然气(CNG)单燃料电控多点顺序喷射发动机。试验结果表明,天然气发动机的动力性能与排放性能达到了设计要求。更多还原

【Abstract】 The multi-point sequential injection engine fueled with compressed natural gas(CNG) was developed based on a diesel engine.The combustion system and induction system of diesel engine were improved.The high energy ignition system,gas-supplied system and electronic control unit were designed.The three unique catalytic converter was added.The closed loop control method of air-fuel ratio was adoped.The test results show that the power performance and the emission of natural gas engine reaches the requirement of design.更多还原