当凸轮的凸起部分转过去后，在弹簧力的作用下，柱塞向下运动，柱塞上部空间（称为泵油室）产生真空度，当柱塞上端面把柱塞套上的进油孔打开后，充满在油泵上体油道内的柴油经油孔进入泵油室，柱塞运动到下止点，进油结束
柱塞泵回油过程
柱塞向上供油，当上行到柱塞上的斜槽（停供边）与套筒上的回油孔相通时，泵油室低压油路便与柱塞头部的中孔和径向孔及斜槽沟通，油压骤然下降，出油阀在弹簧力的作用下迅速关闭，停止供油。此后柱塞还要上行，当凸轮的凸起部分转过去后，在弹簧的作用下，柱塞又下行。此时便开始了下一个循环。柱塞泵以一个柱塞为原理介绍，一个柱塞泵上有两个单向阀，并且方向相反，柱塞向一个方向运动时缸内出现负压，这时一个单向阀打开液体被吸入缸内，柱塞向另一个方向运动时，将液体压缩后另一个单向阀被打开，被吸入缸内的液体被排出。这种工作方式连续运动后就形成了连续供油 。PVH131QIC-RAF-16S-11-ICT4-31
PVH131QIC-RAF-3D-11-CM7-31
PVH131QIC-RAF-3S-10-C25-31
PVH131QIC-RAF-3S-10-C25V-31
PVH131QIC-RAF-3S-10-CM7-31
PVH131QIC-RAF-3S-10-CM7V-31
PVH131QIC-RBF-16S-10-C11V17-31-082
PVH131QIC-RBF-16S-10-C25-31
PVH131QIC-RBF-16S-11-CM7-31
PVH131QIC-RBF-3S-10-IC25-31
PVH131QIC-RBM-16S-11-C25VT18-31
PVH131QIC-RCF-16S-10-C25-31
PVH131QIC-RCF-16S-10-C25V-31
PVH131QIC-RCF-16S-10-IC-31
PVH131QIC-RCF-16S-11-C21V17-31-070
PVH131QIC-RCF-16S-11-C25V-17-31
PVH131QIC-RCF-3S-11-C25-31
PVH131QIC-RCM-16S-11-C25VT18-31
PVH131QIC-RF-12S-11-CM7-31
PVH131QIC-RF-13S-10-C25-31
PVH131QIC-RF-13S-10-C25V-31
PVH131QIC-RF-13S-10-C25V-31-057
PVH131QIC-RF-13S-10-CM7-31
PVH131QIC-RF-13S-10-EDC25-10
PVH131QIC-RF-13S-10-IC-31
PVH131QIC-RF-13S-11-C25-31
PVH131QIC-RF-13S-11-C25V-31
PVH131QIC-RF-13S-11-C25VT4-31
PVH131QIC-RF-13S-11-C25VT8-31
PVH131QIC-RF-13S-11-CM7-31
PVH131QIC-RF-13S-11-ICT4-31
PVH131QIC-RF-2S-11-C25-31
PVH131QIC-RF-3D-11-C25-31
PVH131QIC-RF-3D-11-ICT4-31
产品名称：PVH131QIC-LF-13S-10-C25-31
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