VICKERS柱塞泵工作原理：

    VICKERS柱塞泵是液压系统的一个重要装置。它依靠柱塞在缸体中往复运动，使密封工作容腔的容积发生变化来实现吸油、压油。柱塞在缸体中要往复运动，因此，它的运动量很大，在工作过程中需要承受巨大的摩擦力，因此，柱塞要求高的硬度、耐磨性和使用寿命以及高的精度等。通过研究，采用淬火热处理可以满足柱塞的技术要求。

VICKERS柱塞泵的机械分类：

①轴向柱塞泵

轴向柱塞泵是活塞或柱塞的往复运动方向与缸体中心轴平行的柱塞泵。轴向柱塞泵是利用与传动轴平行的柱塞在柱塞孔内往复运动所产生的容积变化来进行工作的。由于柱塞和柱塞孔都是圆形零件，加工时可以达到很高的精度配合，因此容积效率高，运转平稳，流量均匀性好，噪声低，工作压力高等优点，但对液压油的污染较敏感，结构较复杂，造价较高。

②直轴斜盘式柱塞泵

直轴斜盘式柱塞泵分为压力供油型的自吸油型两种。压力供油型液压泵大都采用有气压的油箱，也有液压泵本身带有补油分泵向液压泵进油口提供压力油的。自吸油型液压泵的自吸油能力很强，无需外力供油。靠气压供油的液压油箱，在每次启动机器后，必须等液压渍箱达到使用气压后，才能操作机械。如液压油箱的气压不足时就担任机器，会对液压泵内的与滑鞭造成拉脱现象，出会造成泵体内回程板与压板的非正常磨损。

③径向柱塞泵

径向柱塞泵可分为阀配流与轴配流两大类。阀配流径向柱塞泵存在故障率高、效率低等缺点。上70、80年代发展的轴配流径向柱塞泵克服了阀配流径向柱塞泵的不足。由于径向泵结构上的特点，陕定了轴配流径向柱塞泵比轴向柱塞泵耐冲击、寿命长、控制精度高。变量行程短泵的变量是在变量柱塞和限位柱塞作用下，改变定子的偏心距实现的，而定于的zui大偏心距为5—9mm(根据排量大小不同)，变量行程很短。且变量机构设计为高压操纵，由控制阀进行控制。故该泵的响应速度快。径向结构设计克服了如轴向柱塞泵滑靴偏磨的问题。使其抗冲击能力大幅度提高。

④液压柱塞泵

液压柱塞泵靠气压供油的液压油箱，在每次启动机器后，必须等液压渍箱达到使用气压后，才能操作机械。直轴斜盘式柱塞泵分为压力供油型的自吸油型两种。压力供油型液压泵大都采用有气压的油箱，也有液压泵本身带有补油分泵向液压泵进油口提供压力油的。自吸油型液压泵的自吸油能力很强，无需外力供油。对于自吸油型柱塞泵，液压油箱内的油液不得低于油标下限，要保持足够数量的液压油。液压油的清洁度越高，液压泵的使用寿命越长。

威格士柱塞泵工作流程：

威格士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。

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。

供油过程

    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。

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 。

VICKERS柱塞泵的特点：

    【1】VICKERS柱塞泵具有额定压力高、结构紧凑、效率高和流量调节方便等优点。

   【2】 VICKERS柱塞泵是利用与传动轴平行的柱塞在柱塞孔内往复运动所产生的容积变化来进行工作的。由于柱塞和柱塞孔都是圆形零件，加工时可以达到很高的精度配合，因此具有容积效率高，运转平稳，流量均匀性好，噪声低，工作压力高等优点，但对液压油的污染较敏感，结构较复杂，造价较高。 

    【3】柱塞泵依靠柱塞在缸体中往复运动，使密封工作容腔的容积发生变化来实现吸油、压油。大金柱塞泵，柱塞泵，VICKERS柱塞泵被广泛应用于高压、大流量和流量需要调节的场合，诸如液压机、工程机械和船舶中。 

威格士柱塞泵的特电和优点：

【1】泵的寿命长
【2】泵的噪声低
【3】进口和出口的压力表
【4】接口和可调整的zui大
【5】排量挡块-标准
【6】压力脉动小得惊人，仅4%
【7】安装和使用成本低
【8】维护简单
【9】设备设计的灵活性强
【10】体积小,节省空间
【11】提升无泄漏系统设计

美国VICKERS柱塞泵系列型号：

VICKERS威格士柱塞泵PVM020型号：

PVM020EL02AS02AAC23200000A0A

PVM020EL07CS02AAB23200000A0A

PVM020EL07CS02AAC2320000AA0A

PVM020ER01AS02AAC07200000A0A

PVM020ER02AE01AAA23000000A0A

PVM020ER02AS02AAC23240000A0A

PVM020ER05CS01AAA23000000A0A

PVM020ER05CS01AAB23110000A0A

PVM020ER07CS02AAB23200000A0A

PVM020ER07CS02AAC2320000AA0A

VICKERS威格士柱塞泵PVM045型号：

PVM045EL07CS02AAC28110000A0A

PVM045ER05CE01AAB28110000A0A

PVM045ER05CE0200A23000000A0A

PVM045ER05CE02AAA28000000A0A

PVM045ER05CE04AAA28000000A0A

PVM045ER05CS01AAA28000000A0A

PVM045ER05CS01AAA2800000AA0A

PVM045ER05CS01AAC2811000000A

PVM045ER05CS0200C2320000CA0A

PVM045ER05CS0200C28110000A0A

PVM045ER05CS02AAA07000000A0A

PVM045ER05CS02AAA28000000A0A

PVM045ER05CS02AAB21110000A0A

PVM045ER05CS02AAB28110000A0A

PVM045ER05CS02AAC28110000A0A

PVM045ER05CS02AAC28200000A0A

PVM045ER05CS02ASA2800000AA0A

PVM045ER05CS04AAA28000000A0A

PVM045ER06CS02AAA28000000A0A

PVM045ER06CS02AAB21110000A0A

PVM045ER06CS02AAB28110000A0A

PVM045ER06CS02AAC2320000AA0A

PVM045ER06CS02AAC28110000A0A

PVM045ER06CS02AAC2811000DA0A

PVM045ER06CS05AAC28200000A0A

PVM045ER07CS02AAC28110000A0A

PVM045ER07CS02AAC2811000AA0A

PVM045ER07CS02AAC28200000A0A

PVM045ER07DE05AAA23000000A0A

PVM045ER08CS02AAC28110000A0A

PVM045ER08CS05AAA28000000AGA

PVM045ER17DS04AAA28000000A0A

PVM045ER17DS05AAA0700000AA0A

PVM045ER17DS05AAB2311000CA0A

PVM045ML07CE01AAB28200000A0A

PVM045MR05CS01AAC28110000A0A

PVM045MR08CS02AAC28200000A0A

VICKERS威格士柱塞泵PVM050型号：

PVM050EL07CS01AAB2320000AA0A

PVM050ER05CS02AAC21110000A0A

PVM050ER06CS02AAC07200000A0A

PVM050ER07CS01AAB2320000AA0A

VICKERS威格士柱塞泵PVM057型号：

PVM057ER09EE02AAB10110000A0A

PVM057ER09ES02AAC07200000A0A

PVM057ER09GS0200A0700000C00A

PVM057ER09GS02AAA07000000A0A

PVM057ER09GS02AAA0700000AA0A

PVM057ER09GS02AAA28000000A0A

PVM057ER09GS02AAB2811000AA0A

PVM057ER09GS02AAC28110000A0A

PVM057ER09GS02AAC28200000A0A

PVM057ER09GS02AAC2820000CA0A

PVM057MR07GE02AAB28110000A0A

PVM057MR11GS02AAC28200000A0A

VICKERS威格士柱塞泵PVM063型号：

PVM063ER09EE01AAA07000000A0A

PVM063ER09EE02AAA21000000A0A

PVM063ER09ES02AAA21000000A0A

PVM063ER09ES02AAC07200000A0A

PVM063ER11GS02AAA23000000A0A

PVM063ER09EE02AAA21000000A0A

PVM063ER09ES02AAA21000000A0A

VICKERS威格士柱塞泵PVM074型号：

PVM074ER09ES02AAC07200000A0A

PVM074ER09ES02AAC23200000A0A

PVM074ER09ES04AAA28000000A0A

PVM074ER09GS02AAA07000000A0A

PVM074ER09GS02AAA28000000A0A

PVM074ER09GS02AAC18200000A0A

PVM074ER09GS02AAC28110000A0A

PVM074ER09GS02AAC28200000A0A

PVM074ER09GS04AAC28200000A0A

PVM074ER09GS04AAE00200000A0A

PVM074ER10ES02AAB28110000A0A

PVM074ER10GS02AAC2824000EA0A

PVM074ER11GS02AAC28240000A0A

PVM074ER19FS04AAA28000000A0A

PVM074ER19FS04AUF0020000000A

PVM074MR09GS02AAC2820000AA0A

PVM074MR10ES0200C2820000EA0A

PVM074MR11GS02AAC25200000A0A

VICKERS威格士柱塞泵PVM081型号：

PVM081ER09ES02AAC07200000A0A

PVM081ER09ES02AAC23200000A0A

PVM081ER09GS02AAC2320000000A

PVM081ER09GS04AAA23000000A0A

VICKERS威格士柱塞泵PVM098型号：

PVM098EL11ES02AAC28200000A0A

PVM098ER10GS02AAA2800000EA0A

PVM098ER10GS02AAB28110000A0A

PVM098ER10GS02AAE0020000EA0A

PVM098ER10GS04AAB28110000A0A

PVM098ER11ES02AAA23000000A0A

PVM098ER10GS02AAA2800000EA0A

PVM098ER10GS02AAB28110000A0A

PVM098ER10GS02AAE0020000CA0A

PVM098ER10GS04AAB28110000A0A

PVM098MR09GS02AAA07000000A0A

PVM098MR09GS02AAA07110000A0A

PVM098MR09GS02AAA15000000A0A

PVM098MR09GS02AAA15200000A0A

PVM098MR09GS02AAA21000000A0A

PVM098MR09GS02AAA21240000A0A

PVM098MR09GS02AAA23000000A0A

PVM098MR09GS02AAA28000000A0A

PVM098MR09GS02AAB07000000A0A

PVM098MR09GS02AAB07110000A0A

PVM098MR09GS02AAB15000000A0A

PVM098MR09GS02AAB15200000A0A

PVM098MR09GS02AAB21000000A0A

PVM098MR09GS02AAB21240000A0A

PVM098MR09GS02AAB23000000A0A

PVM098MR09GS02AAB28000000A0A

PVM098MR09GS02AAC07000000A0A

PVM098MR09GS02AAC07110000A0A

PVM098MR09GS02AAC15000000A0A

PVM098MR09GS02AAC15200000A0A

PVM098MR09GS02AAC21240000A0A

PVM098MR09GS02AAC23000000A0A

PVM098MR09GS02AAC28000000A0A

PVM098MR09GS02AAE07000000A0A

PVM098MR09GS02AAE07110000A0A

PVM098MR09GS02AAE15000000A0A

PVM098MR09GS02AAE15200000A0A

PVM098MR09GS02AAE21000000A0A

PVM098MR09GS02AAE21240000A0A

PVM098MR09GS02AAE23000000A0A

PVM098ER11ES02AAC28200000A0A

PVM098ER11GS02AAA28000000A0A

PVM098ER12GS02AAC2824000EA0A

PVM098ER18HS04AAA23000000A0A

PVM098ER18HS04AAA28000000A0A

PVM098ER19FS04AAA28000000A0A

PVM098ER19FS04ASA28000000A0A

PVM098ML11GS02AAC25200000A0A

PVM098ML11GS02ABC152600G0A0A

PVM098ER09GS02AAA07000000A0A

PVM098ER09GS02AAA07110000A0A

PVM098ER09GS02AAA15000000A0A

PVM098ER09GS02AAA15200000A0A

PVM098ER09GS02AAA21000000A0A

PVM098ER09GS02AAA21240000A0A

PVM098ER09GS02AAA23000000A0A

PVM098ER09GS02AAA28000000A0A

PVM098ER09GS02AAB07000000A0A

PVM098ER09GS02AAB07110000A0A

PVM098ER09GS02AAB15000000A0A

PVM098ER09GS02AAB15200000A0A

PVM098ER09GS02AAB21000000A0A

PVM098ER09GS02AAB21240000A0A

PVM098ER09GS02AAB23000000A0A

PVM098ER09GS02AAB28000000A0A

PVM098ER09GS02AAC07000000A0A

PVM098ER09GS02AAC07110000A0A

PVM098ER09GS02AAC15000000A0A

PVM098ER09GS02AAC15200000A0A

PVM098ER09GS02AAC21000000A0A

PVM098ER09GS02AAC21240000A0A

PVM098ER09GS02AAC23000000A0A

PVM098ER09GS02AAC28000000A0A

PVM098ER09GS02AAC28110000A0A

PVM098ER09GS02AAC28200000A0A

PVM098ER09GS02AAE00200000A0A

PVM098ER09GS02AAE07000000A0A

PVM098ER09GS02AAE07110000A0A

PVM098ER09GS02AAE15000000A0A

PVM098ER09GS02AAE15200000A0A

PVM098ER09GS02AAE21000000A0A

PVM098ER09GS02AAE21240000A0A

PVM098ER09GS02AAE23000000A0A

PVM098ER09GS02AAE28000000A0A

PVM098ER09GS04AAA28000000A0A

PVM098ER09GS04AAC28200000A0A

PVM098ER09GS04AAE00200000A0A

PVM098ER10GS02AAA2300000AAOA

PVM098ER10GS02AAA28000000A0A

PVM098MR09GS02AAE28000000A0A

VICKERS威格士柱塞泵PVM106型号：

PVM106ER09GS02AAA23000000A0A

PVM106ER09GS02ASF00200000A0A

PVM106ER10GS02AAF0020000EA0A

PVM106ER11GS02AAF00200000A0A

PVM106ER09GS02AAA07000000A0A

PVM106ER09GS02AAA07110000A0A

PVM106ER09GS02AAA15000000A0A

PVM106ER09GS02AAA15200000A0A

PVM106ER09GS02AAA21000000A0A

PVM106ER09GS02AAA21240000A0A

PVM106ER09GS02AAA23000000A0A

PVM106ER09GS02AAA28000000A0A

PVM106ER09GS02AAB07000000A0A

PVM106ER09GS02AAB07110000A0A

PVM106ER09GS02AAB15000000A0A

PVM106ER09GS02AAB15200000A0A

PVM106ER09GS02AAB21000000A0A

PVM106ER09GS02AAB21240000A0A

PVM106ER09GS02AAB23000000A0A

PVM106ER09GS02AAB28000000A0A

PVM106ER09GS02AAC07000000A0A

PVM106ER09GS02AAC07110000A0A

PVM106ER09GS02AAC15000000A0A

PVM106ER09GS02AAC15200000A0A

PVM106ER09GS02AAC21000000A0A

PVM106ER09GS02AAC23000000A0A

PVM106ER09GS02AAC28000000A0A

PVM106ER09GS02AAE07000000A0A

PVM106ER09GS02AAE07110000A0A

PVM106ER09GS02AAE15000000A0A

PVM106ER09GS02AAE15200000A0A

PVM106ER09GS02AAE21000000A0A

PVM106ER09GS02AAE23000000A0A

PVM106ER09GS02AAE28000000A0A

PVM106ER10GS02AAF0020000EA0A

PVM106MR09GS02AAC2320000000A

VICKERS威格士柱塞泵PVM131型号：

PVM131EL09ES02AAC07200000A0A

PVM131EL11ES02AAC28200000A0A

PVM131EL12ES02AAC2820000DA0A

PVM131ER09ES02AAC07200000A0A

PVM131ER09GS02AAA28000000A0A

PVM131ER09GS02AAC23200000A0A

PVM131ER09GS02AAE00200000A0A

PVM131ER09GS04AAE00200000A0A

PVM131ER10GS02AAA28000000A0A

PVM131ER10GS02AAB15200000A0A

PVM131ER10GS02AAB21000000A0A

PVM131ER10GS02AAB21240000A0A

PVM131ER10GS02AAB23000000A0A

PVM131ER10GS02AAB2320000EA0A

PVM131ER10GS02AAB28000000A0A

PVM131ER10GS02AAB28110000A0A

PVM131ER10GS02AAC07000000A0A

PVM131ER10GS02AAC07110000A0A

PVM131ER10GS02AAC15000000A0A

PVM131ER10GS02AAC21000000A0A

PVM131ER10GS02AAC21240000A0A

PVM131ER10GS02AAC23000000A0A

PVM131ER10GS02AAC28000000A0A

PVM131ER10GS02AAC28200000A0A

PVM131ER10GS02AAE07000000A0A

PVM131ER10GS02AAE07110000A0A

PVM131ER10GS02AAE15200000A0A

PVM131ER10GS02AAE21000000A0A

PVM131ER10GS02AAE21240000A0A

PVM131ER10GS02AAE28000000A0A

PVM131ER10GS02AAB2320000EA0A

PVM131ER10GS02AAB28110000A0A

PVM131ER10GS02AAC28200000A0A

PVM131ER10GS04AAA28000000A0A

PVM131ER11ES02AAC28200000A0A

PVM131ER13GS02AAA07000000A0A

PVM131ER13GS02AAA28000000A0A

PVM131ER13GS02AAC2820000EA0A

PVM131ER13GS02AAF0020000EA0A

PVM131ER13JS02AAA21000000A0A

PVM131ML10GS02AAC28200000A0A

PVM131ML11GS02AAC28200000A0A

PVM131ER09GS02AAA28000000A0A

PVM131ER09GS02AAC23200000A0A

PVM131ER10GS02AAA07000000A0A

PVM131ER10GS02AAA07110000A0A

PVM131ER10GS02AAA15000000A0A

PVM131ER10GS02AAA15200000A0A

PVM131ER10GS02AAA21000000A0A

PVM131ER10GS02AAA21240000A0A

PVM131ER10GS02AAA23000000A0A

PVM131ER10GS02AAA28000000A0A

PVM131ER10GS02AAB07000000A0A

PVM131ER10GS02AAB07110000A0A

PVM131ER10GS02AAB15000000A0A

VICKERS威格士柱塞泵PVM141型号：

PVM141ER09ES02AAC07200000A0A

PVM141MR10GS02AAE23000000A0A

PVM141MR10GS02AAE28000000A0A

PVM141MR10GS02AAA21240000A0A

PVM141MR10GS02AAA23000000A0A

PVM141MR10GS02AAA28000000A0A

PVM141MR10GS02AAB07000000A0A 

PVM141MR10GS02AAB07110000A0A

PVM141MR10GS02AAB15000000A0A

PVM141MR10GS02AAB15200000A0A

PVM141MR10GS02AAB21000000A0A

PVM141MR10GS02AAB21240000A0A

PVM141MR10GS02AAB23000000A0A

PVM141ER10GS02AAA23000000A0A

PVM141ER10GS02AAC23200000A0A

PVM141ER10GS02AAF00200000A0A

PVM141MR10GS02AAA07000000A0A

PVM141MR10GS02AAA15200000A0A

PVM141MR10GS02AAA21000000A0A

PVM141MR10GS02AAC21000000A0A

PVM141MR10GS02AAC21240000A0A

PVM141MR10GS02AAC23000000A0A

PVM141MR10GS02AAC28000000A0A

PVM141MR10GS02AAE07000000A0A

PVM141MR10GS02AAE07110000A0A

PVM141MR10GS02AAE15000000A0A

PVM141MR10GS02AAE15200000A0A

PVM141MR10GS02AAE21000000A0A

PVM141MR10GS02AAE21240000A0A

PVM141MR10GS02AAB28000000A0A

PVM141MR10GS02AAC07000000A0A

PVM141MR10GS02AAC07110000A0A

PVM141MR10GS02AAC15000000A0A

PVM141MR10GS02AAC15200000A0A

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