基于超声波雾化的发动机燃油供给系统设计

Design of the Engine Fuel Supplying System Based on Ultrasonic Atomization

针对化油器式摩托车发动机油耗高、排放不好,电喷式价格贵等特点,笔者设计了一套基于超声波雾化的燃油供给系统代替化油器。新系统采用超声波雾化系统提供燃油,雾化后的燃油成微米级雾粒,增大燃油与空气接触混合的面积,使燃油混合更加均匀。实验结果显示,使用新系统发动机比原化油器式发动机尾气中HC、CO浓度明显降低,CO2增大,从而表明燃油燃烧更加充分,达到节能减排的效果,成本与化油器式相当。

According to the carburetor engine is of high fuel consumption, bad emission, and EFI engine is of high price, a set of fuel oil supply system, in place of the carburetor, based on ultrasonic atomization is de- signed. The fuel for the new system which is atomized into micron grade fog grain with ultrasonic system, in- creases the fuel and air mixing contact area, makes the fuel mixes more uniform. The experimental results show that the HC and CO concentration in tail gas of new system is significantly lower, and CO2 emission in- creases, which demonstrates that the fuel burns more fully. It achieves the effect of energy saving and emission reduction. The cost is equivalent to carburetor type.