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fang zhi pen you beng diao zheng shi tu lun zhou fan zhuan
Author(s): 
Pages: 36
Year: Issue:  3
Journal: Farm Machinery

Keyword:  调整螺钉供油时间供油提前角出油阀上止点泵头油管接头左右转功量孔时;
Abstract: <正>在调整多缸发动机喷油泵供油提前角时,需要抽出两个调整螺钉来转动花盘,由于调整方法不当,操作时往往会产生喷油泵凸轮轴反转的现象,使原供油时间遭到破坏,给调整工作带来很大麻烦。凸轮轴反转的原因,主要是由于某缸的柱塞在套筒中正处于供油压缩阶段,此时该缸的凸轮顶尖尚未到达上止点位置,出油阀也未开启。因柱塞与套筒的密封性很好,柱塞顶部套筒内的压力很大,此力促使柱塞向下运动,推动该缸凸轮连轴一起反转。
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