柱塞泵柱塞往复运动总行程L是不变的，
由凸轮的升程决定。柱塞每循环的供油
量大小取决于供油行程,供油行程不受
凸轮轴控制是可变的。供油开始时刻不
随供油行程的变化而变化。转动柱塞
可改变供油终了时刻，从而改变供油量。
柱塞泵工作时，在喷油泵凸轮轴上的凸轮
与柱塞弹簧的作用下，迫使柱塞作上、
下往复运动，从而完成泵油任务，
泵油过程可分为以下三个阶段。
A10VSO28DR/31R-PSC12N00
A10V028DR/31R-PSC62K01
A10V028DFR1/31R-PSC62N00
A10VSO28DR/31L/PPA12G20
A10V028DFR/31L-PSC12K01
A10VSO45DFR1/31R-PPA12N00
A10VSO45DFR1/32R-VPB12N00
A10VSO45DR/31R-PPA12N00
A10VSO45DR/31R-PPA12K25
A10VSO45DFR1/31R-PPA12N00
A10VSO58DFR1/31R-PPA12N00
A10VSO45DFR1/31RPPA12N00
E-A10VSO45DFR1/31R-PPA12N00
A10VSO45DFR/31R-PPA12N00-S
A10VSO45DR/31R-PPA12N00
A10VSO45DR/52R-PC12N00
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
A10V045DFR1/31R-PSC62K02
A10VSO45DFR1/31R-PPA12N00
A10VSO45DR/31RPPB12N00
A10V045DFR1/31R-PSC62K02
A10VSO71DFR1/32R-VPB22U99
A10VSO71DFR1/31R-PPA12N00
A10VSO71DFR1/32R-VPB12N00
A10VSO71DFR1/31R-PPA12KB5
A10VSO71DFR/31R-PSC62K07
A10V071DFRI/34 PSC6402-SO225
A10VSO71FR1/31R-PPA12N00
A10VSO71DFR1/31R-PPB12N00
A10VSO71DFR1/31R-PPA12N00
A10VSO71DFR1/31R-PSC62K07
A10VSO71DFR/31R-PPA12KB3
A10VSO71DR/31R-PPA12N00
A10VSO71DFR/31R-PPA12N00
A10VSO71DFR1/31R-PPA12N00
A10VSO71DFR1/31R-PPA12N00
A10VSO71DFR1/32R-VPB22U99
E-A10VSO71DR/31R-PPA12N00
A10VSO100DR/31R-PPA12N00
A10VSO100DR/32R-VPB22U99
A10VSO100DFR1/32R-VPB12N00
A10VSO100DFR1/31R-PPA12K
A10VSO100DFR1/31R-PPA12KB3
E-A10VSO100PFR1/31R-PPA12N00
A10VSO100DFR/31RPSB12K24
A10VSO100DR/31R-VPA12N00
A10VSO100DR/31R-PPA12N00
A10VSO100DFR1/31R-PPA12N00
A10VSO100DFR1/32R-VPB12N00
A10V0100DR/31R-PSC11N00
