The calculation formulas provided in this paper can calculate the total friction resistance produced by piston O-sealing washers and piston rod O-sealing washers-during the process of piston starting, power stroke, reverse starting and return stroke respectively. 运用本文提供的总摩擦力公式计算可分别求得活塞启动,进程、反向启动及回程时由活塞O形密封圈及活塞杆O形密封圈共同产生的总摩擦阻力。
Analysis of the Influence of Air Intake System on Reverse Ejection in a 2-stroke Engine 二冲程摩托车发动机进气系统对反喷影响的分析
The Pumping unit has a double-chain synchronous driving and reverse mechanism, and can realize flexible reverse with stroke increment; 抽油机具有双链条同步驱动换向机构,可实现增距式柔性换向;