传动柱塞 meaning in English

driving ram

This task will be foundation to develop a new type hydrostatic transmission piston pumps with high efficiency , long life , high pressure and high speed , which combined the item of nature science fund of zhejiang province , tribology study on sealing , hydrostatic support and piston on hydrostatic transmission piston pump . in this paper , a new design idea of the ball friction coupling based on hydrostatic bearing was given , and analysis was carried out to the static state properties and the dynamic properties of the oil - film of this friction pair
本课题是结合浙江省自然科学基金项目“静压传动柱塞泵的密封、静压支承和柱塞的摩擦学研究” ( 501073 ) ，为研发高效率、长寿命、高速、高压静压传动柱塞泵提供一定的理论基础，着重研究了滑靴副和球铰副的动静态特性，提出了基于静压支承的球铰副设计原理。