The stronger air motions are helpful in organizing mixture strength distribution and then realizing lean mixture combustion in two-valve gasoline engines.
强化空气运动的结果有利于组织燃料在缸内的浓度分布，从而为在二气门汽油机上实现稀薄燃烧打下基础；
2
Based on the inhouse structure of JZ-7 air brakes, the design scheme of distribution valves for passenger locomotives was proposed and the main valve of new distribution valves was developed.
从JZ 7型空气制动机本身的结构出发，提出了客运机车分配阀的方案，研制了新的分配阀主阀。
3
The control system of the valve body is simple in structure, high in reliability and is high in airdistribution efficiency and precision.