【摘要】 通过在化油器与曲轴箱之间加装进气谐振器,利用排气波动效应,调整排气管各部尺寸与发动机配气定时的恰当配合并在活塞裙部开排气回流孔,将逃逸混合气重新引入缸内燃烧,使二冲程摩托车的经济性和排放同时得以改善。另外,通过利用排气口负压,由单向阀自动二次补气,并加装催化器使其排放进一步降低。更多还原

【Abstract】 The measures taken to improve the economy and emissions of the two-stroke motorcycle simultaneously are illustrated, which are listed as follows: installing an intake resonator between the carburetor and the crankcase, making use of the exhaust fluctuation effect, adjusting the size of the exhaust pipes to achieve the proper match with the timing of engine, and opening an exhaust regurgitant hole at the piston skirt to introduce the escaping mixture gas into the cylinder for further combustion. In addition, the emissions are greatly reduced by using negative pressure at the exhaust orifice, supplying the gas for the second time automatically by the one-way valve, and mounting a catalytic converter.更多还原