A11VLO190LRD/11R-NPD12N00变量柱塞泵 

进油过程

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

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。

 

内磁转子装于泵轴上，外磁转子有电动机驱动，利用磁学原理，实现外磁转子带动内磁转子非接触的力矩传递，达到驱动齿轮泵的目的，磁力驱动齿轮泵的壳体，端盖和齿轮的各个齿间槽组成了许多密封的工作腔，当齿轮旋转时，吸油腔由于啮合着的齿轮逐渐脱开，密封工作腔容积逐渐加大，形成部分真空，箱中介质被吸进来，并随着齿轮旋转，但介质达到液压腔时，由于齿轮在这里逐渐进入啮合，密封工作腔的体积不断减小，介质便被挤压出去

A11VLO190LRD/11R-NPD12N00变量柱塞泵

斜轴式变量柱塞泵

A11V型变量柱塞泵具有压力高、体积小、重量轻、转速高、耐冲击等优点，传动轴能承受一定的径向负荷。吸油压力（开式）为0.09～0.15MPa。适用 于工程机械以及轧钢、锻压、矿山、起重、船舶等各种机械的开式液压系统。它有恒功率变量（LV）、恒压（DR）、电控比例变量（EP）、液控变量 （HD）、手动变量（MA）五种变量型式。

R902071866 A11VO190LRDU2/11R-NZD12K01H-SK *AL* 

R902071867 A11VO190LRDU2/11R-NZD12K01H-SK 

R902073020 A11VO190/10 A11VO130/10 A11VO95 A11VO40 

R902073021 A11VO190LR3DH1/11R-NZD12K83 

R902073040 A11VO190DRS A11VO130DRS *AL* 

R902073041 A11VO190EP2D/11R-NZD12K61H 

R902073075 A11VO190DRS A11VO60DRS 

R902073113 A11VO190LRDH1/11 A10VO28DR/31-K 

R902073261 A11VO190DRG/11L-NTD12K02 

R902073306 A11VO190LRD/11L-NZD12K02 

R902073307 A11VO190LRDH1/11R-NSD12K01 

R902073415 A11VO190DRS A10VO140DFR1 

R902073416 A11VO190DRS/11L-VPD12K17-S 

R902073420 A11VO190LRGH6/11L-NZD12K84R-S 

R902073477 A11VO190DRS A11VO130DRS 

R902073478 A11VO190DRS/11L-NZD12K17 

R902073480 A11VO190LRDH1/11L-NZD12N00 

R902074449 A11VO190EP2 A11VO95EP2 

R902074450 A11VO190EP2D/11L-NZD12K82H 

R902074453 A11VO190LR/11R-NZD12K61 

R902074454 A11VO190LR A11VO190LR A11VO60DR 

R902074455 A11VO190DRS/11L-NZD12K24 

R902074543 A11VO190DR/11R-NPD12K01 

R902074547 A11VO190DRG/11R-NPD12K04 

R902074548 A11VO190DRG/11R-NPD12K04-K 

R902074560 A11VO190EP2G/11R-NPD12K01H-S 

R902074607 A11VO190HD1D/11R-NPD12K01 

R902074610 A11VO190LRDU2/11R-NPD12K02H 

R902074715 A11VO190DRS/11L-NPD12K61 

R902074716 A11VO190DRS2 A11VO60DRS A10VO45DFR1 

R902074729 A11VO190DRS A10VSO18DFR1 

R902074926 A11VO190DRS A11VO190DRS 

R902074927 A11VO190DRS/11R-NZD12K84 

R902074945 A11VO190LRDU2/11R-NPD12K17H 

R902074947 A11VO190EP2D/11L-NZD12K07H 

R902075635 A11VO190DRS/11R-NZD12K79 

R902075665 A11VO190LRDH2/11R-NZD12K01-K 

R902075683 A11VO190DRS A11VO130DRS 

R902075753 A11VO190LRDH2/11 A10VO28DR/31-K 

R902075765 A11VO190LRDU2/11R-NZD12K02H-K 

R902075798 A11VO190EP2G/11R-NPD12K24H 

R902075944 A11VO190LRDU2/11L-NZD12K82VH-S 

R902075985 A11VO190LRDU2/11R-NPD12N00H 

R902076542 A11VO190DRS/11R-NPD12K01 

R902076748 A11VO190EP2D/11L-NZD12K01H 

R902076750 A11VO190EP2D A11VO190EP2D 

R902076754 A11VO190DRS A11VO190DRS 

R902076859 A11VO190DRS/11L-NZD12K02 

R902077506 A11VO190HD1D/11L-NSD12K02 

R902077610 A11VO190LRD/11R-NZD12K01 

R902077611 A11VO190LRD/11R-NZD12K01-K 

R902077801 A11VO190LRDU2/11R-NZD12K07H-S 

R902077847 A11VO190DR/11L-NZD12K24 

R902079104 A11VO190LRDH2/11 A10VO45DR/31-K 

R902079105 A11VO190LRDH2/11R-NZD12K04 

R902079120 A11VO190LRD/11R-NPD12K04 

R902079157 A11VO190LRDU2/11 A11VO190LRDU2/11-K 

R902079165 A11VO190DRG/11R-NPD12K04-K 

R902079185 A11VO190LRH1/11R-NSD12K01 

R902080007 A11VO190LRDS A11VO60DR 

R902080041 A11VO190DRS A11VO145DRS 

R902081124 A11VO190LRDH1/11R-NSD12N00 

R902081184 A11VO190DRG/11R-NPD12K02-K 

R902081355 A11VO190HD1D/11L-NSD12K07 

R902081361 A11VO190LRDH1/11L-NSD12N00 

R902081410 A11VO190DRS A11VO190DRS 

R902081510 A11VO190LRDS/11L-NSD12N00 

R902081694 A11VO190DRX/11L-NZD12N00-S 

R902081837 A11VO190LR3DH1/11R-NZD12N00 

R902081948 A11VO190LRH2/11R-NZD12K02 

R902083042 A11VO190LRS/11R-NZD12K24-S 

R902083044 A11VO190LRS HA10VO100DFR 

R902083127 A11VO190LRDH1/11R-NZD12KXX-S 

R902083143 A11VO190EP2/11R-NPD12K01H 

R902083191 A11VO190DRS/11R-NZD12K24 

R902083192 A11VO190DRS/11R-NS12K17 

R902083193 A11VO190DRS A11VO130DRS 

R902083333 A11VO190LRS/11R-NSD12K17V-S 

R902083452 A11VO190EP2/11R-NPD12N00H 

R902083500 A11VO190LRDH2/11L-NZD12K01 

R902083501 A11VO190LRDH2/11L-NZD12K01-K 

R902083566 A11VO190LRDU2/11R-NZD12N00P 

R902083630 A11VO190LE2S/11R-NZD12N00P 

R902083694 A11VO190EP2D/11R-NZD12N00P 

R902083746 A11VO190LG1CS5 A10VO45DFLR 

R902083753 A11VO190LRD/11R-NPD12K01 

R902083754 A11VO190LRD/11R-NPD12K01-K 

R902084585 A11VO190LRDH1 A11VO190LRDH1 A11VO A11VO 

R902084615 A11VO190EP4S/11R-NZD12K07H-S 

R902084643 A11VO190EP2D/11L-NZD12N00H-S 

R902084785 A11VO190LRDS A11VO130LRDS 

R902084923 A11VO190LRDU2/11L-NZD12K82VH 

R902085568 A11VO190LRGU2/11R-NZD12N00VH-S 

R902085640 A11VO190DRS A11VO130DRS 

R902085723 A11VO190DRG/11R-NSD12K07 

R902085776 A11VO190LRS/11R-NPD12K84-S 

R902085839 A11VO190DR/11R-NPD12K02 

R902085876 A11VO190LRS/11R-NPD12N00-S 

R902087033 A11VO190EP2G/11R-NPD12K01H 

R902087099 A11VO190DRS/11 A4VG180EP2/32 

R902087565 A11VO190EP2/11R-NZD12N00H 

R902087566 A11VO190EP2 A11VO190EP2 *AL* 

R902087567 A11VO190EP2/11R-NZD12K84H 

R902087568 A11VO190EP2/11R-NZD12N00H 

R902087604 A11VO190LRGU2/11R-NZD12K02VH-S 

R902087655 A11VO190LRDS/11R-NPD12K01 

R902087849 A11VO190NV/11R-NZD12K24R-S 

R902087907 A11VO190LE2S/11R-NTD12K24P 

R902087915 A11VO190DRS A11VO130DRS 

R902087985 A11VO190LRDU2 A11VO190LRDU2 *AL* 

R902087986 A11VO190LRDU2/11L-NZD12K84VH-S 

R902087987 A11VO190LRDU2/11L-NZD12N00VH-S 

R902088033 A11VO190LRDH2/11 A10VO28DR/31-K 

R902088402 A11VO190DRS/11L-NZD12K07 

R902089029 A11VO190DRS/11R-NSD12N00 

R902089090 A11VO190DR A11VO190DR 

R902089091 A11VO190DR/11L-NZD12K84 

R902089092 A11VO190DR/11L-NZD12N00 

R902089102 A11VO190LRH2 A11VO130LRH2 

R902089103 A11VO190LRH2/11R-NPD12K17 

R902089104 A11VO190LRH2/11R-NSD12N00 

R902089478 A11VO190EP2D/11R-VPD12N00H-S 

R902089800 A11VO190DRL/11R-NZD12K61 

R902089801 A11VO190DRL/11R-NZD12K81 

R902090559 A11VO190DRG/11R-NZD12K17 

R902090580 A11VO190LRDS/11R-NXD12K07-S 

R902090707 A11VO190LRDH2 A11VO190LRDH2 

R902090708 A11VO190LRDH2/11L-NZD12K84 

R902090718 A11VO190LRDH2/11 A11VO190LRDH2/11-K 

R902090723 A11VO190LRDH2/11 A11VO190LRDH2/11-K 

R902090735 A11VO190LRDS/11L-NZD12N00-S 

R902090998 A11VO190LRD/11R-NZD12K84 

R902092335 A11VO190EP2/11L-NZD12K84H-ES 

R902092336 A11VO190EP2D/11L-NZD12N00H-ES 

R902092346 A11VO190EP2/11L-NZD12K02H-ES 

R902092685 A11VO190DRG/11R-NPD12N00-E 

R902094001 A11VO190LRD A11VO190LRD 

R902094116 A11VO190EP4S/11R-NZG12KXXH-S 

R902094325 A11VO190EP2S/11R-NSD12K17H-S 

R902094380 A11VO190DRS A11VO190DRGX 

R902094381 A11VO190DRS/11L-NZD12K84-S 

R902094404 A11VO190DRGX/11L-NZD12N00-S 

R902096016 A11VO190LRDS/11R-NSD12K02 

R902096086 A11VO190DRS/11R-NZD12K61 

R902096087 A11VO190DRS A4VG71EP2D1 A4VG71EP2D1 *AL* 

R902096100 A11VO190LR/11R-NZD12K07V 

R902096483 A11VO190LG1CS5 A10VO45DFLR 

R902097073 A11VO190DRS A11VO190LRDS 

R902097409 A11VO190LRCS/11R-NZG12K07 

R902097497 A11VO190EP2D/11R-NSD12K72H 

R902097819 A11VO190DRS/11R-NZD12N00R 

R902097976 A11VO190DRG/11R-NPD12K02-K 

R902100622 A11VO190LE2D/11 A11VO190LE2D/11-K 

R902100623 A11VO190LE2D/11R-NZG12K84P 

R902100624 A11VO190LE2D/11R-NZD12K01P 

R902100737 A11VO190DRS A10VO60ED73 

R902100738 A11VO190DRS/11L-VZD12K04-S 

R902100838 A11VO190LRDCH6/11L-NZD12N00 

R902100957 A11VO190EP2G/11R-NZD12K84P 

R902100958 A11VO190EP2G/11R-NZD12N00P 

R902100959 A11VO190EP2G/11R A11VO190EP2G/11R 

R902100970 A11VO190EP2G A11VO95EP2G 

R902100971 A11VO190EP2G A11VO130EP2G 

R902100972 A11VO190EP2G/11R-NZD12K17P 

R902102125 A11VO190LRDS/11L-NSD12K07 

R902102356 A11VO190EP4S/11R-NSG12KXXH-S 

R902103680 A11VO190LRDU2/11R-NZD12K01-K 

R902103886 A11VO190EP4S/11R-NZG12K17H-S 

R902104552 A11VO190LRDS/11R-NZD12K82 

R902104582 A11VO190LE2S/11R-NZD12K02H 

R902104925 A11VO190LRDS/11R-NSD12K07 

R902105047 A11VO190EP2G/11L-NZD12N00H-S 

R902105097 A11VO190LRDS/11R-NSD12K17-ES 

R902105098 A11VO190EP2S/11R-NSD12K17H-ES 

R902105149 A11VO190DR/11R-NSD12N00 

R902105164 A11VO190DRG/11R-XZD12N00-S 

R902105335 A11VO190DRG/11R-NZD12K84 

R902105336 A11VO190DRG/11 A4VG180HD1DM1/32 

R902106140 A11VO190DR/11R-NSD12K24 

R902106141 A11VO190DR/11L-NSD12K04 

R902106142 A11VO190DR/11L-NSD12K04-K 

R902106238 A11VO190LR A11VO130LR A11VO60DRS A11VO40 

R902106314 A11VO190EP2D/11R-NSD12K17H 

R902106339 A11VO190LRDH1/11R-NZD12KXX-S 

R902106352 A11VO190DRS A11VO145HD2D 

R902108047 A11VO190LRD/11R-NPD12K07 

R902108355 A11VO190DRS/11L-NZD12N00-S 

R902108379 A11VO190LRDS A11VO130DRS 

R902108380 A11VO190LRDS/11R-NPD12K83 

R902108399 A11VO190LE2S2/11R-NZG12N00P-S 

R902108415 A11VO190DRS/11R-NTD12K17-S 

R902110534 A11VO190LE2S/11R-NSD12K17H 

R902110951 A11VO190LR3S/11L-NSD12K07R 

R902112494 A11VO190EP2D/11R-NPD12K04RP 

R902112552 A11VO190DRG/11L-NTD12N00 

R902112555 A11VO190LRCS/11R-NZG12K07-S 

R902012178 A11VLO190LRDS/11L-NZD12N00 

R902012194 A11VLO190LRDS/11R-NZD12N00 

R902012579 A11VLO190DRS/11L-NSD12N00 

R902013688 A11VLO190DRS/11R-NZD12K02 

R902013824 A11VLO190LR3DS/11R-NZD12K04 

R902014644 A11VLO190LRDS/11R-NZD12KXX-S 

当凸轮轴转到凸轮的凸起部分顶起滚轮体时，柱塞弹簧被压缩，柱塞向上运动，燃油受压，一部分燃油经油孔流回喷油泵上体油腔。当柱塞顶面遮住套筒上进油孔的上缘时，由于柱塞和套筒的配合间隙很小（0.0015-0.0025mm）使柱塞顶部的泵油室成为一个密封油腔，柱塞继续上升，泵油室内的油压迅速升高，泵油压力>出油阀弹簧力 高压油管剩余压力时，推开出油阀，高压柴油经出油阀进入高压油管，通过喷油器喷入燃烧室。(3)泄油管过细过长，使密封处漏油；