对改密封式制动缸的几点看法刘汝让（北京铁路局车辆处１０００３８北京）采用密封式制动缸有利于减轻工人劳动强度、改善车辆制动性能、延长车辆检修周期并最终向无检修化过渡。近年来，我国从前苏联、波兰、前民德进口的机保车都普遍采用了密封式制动缸。根据我国绝大多... Liu Rurang (Beijing Railway Administration Vehicle Department 100038 Beijing) The use of a sealed brake cylinder helps reduce labor intensity, improve vehicle braking performance, extend the vehicle inspection cycle and eventually to the maintenance-free transition. In recent years, China has imported sealed-type brake cylinders from the former Soviet Union, Poland and former Mideast. According to the vast majority of our country ...