一环保型发动机概述环保型发动机是指安装了三元催化转化器系统,通过氧传感器反馈控制空燃比,使用微电脑对发动机工作性能及尾气排放全方位系统控制,它能精确控制空燃比。环保型发动机与化油器发动机相比具有以下先进性:1.任何工况下都能获得精确空燃比的混合气; An environmentally friendly engine Overview Environmentally friendly engine is installed three catalytic converter system, through the oxygen sensor feedback control of air-fuel ratio, the use of microcomputer on the engine performance and exhaust emissions of the full range of system control, it can precisely control the air-fuel ratio. Compared with the carburetor engine, the eco-friendly engine has the following advanced features: 1. The mixture with the accurate air-fuel ratio can be obtained under any working condition;