美国Vickers威格士柱塞泵
威格士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。
威格士油泵结构形式
1）威格士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，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。
2）威格士柱塞和柱塞套是一对精密偶件，经配对研磨后不能互换，要求有高的精度和光洁度和好的耐磨性，其径向间隙为0.002～0.003mm
3）威格士柱塞头部圆柱面上切有斜槽，并通过径向孔、轴向孔与顶部相通，其目的是改变循环供油量；柱塞套上制有进、回油孔，均与泵上体内低压油腔相通，柱塞套装入泵上体后，应用定位螺钉定位。
威格士柱塞头部斜槽的位置不同，改变供油量的方法也不同。
编辑本段威格士油泵回油过程
① 柱塞往复运动总行程L是不变的，由凸轮的升程决定。
② 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。
③ 供油开始时刻不随供油行程的变化而变化。
④ 转动柱塞可改变供油终了时刻，从而改变供油量
威格士油泵机械原理
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。
美国VICKERS威格士高压泵液压柱塞泵，变量柱塞泵，液压泵，EATON-VICKERS伊顿威格士示例型号： PFB柱塞泵：PFB5、PFB10、PFB20、PFB45，PFB5-FRY-22-S124； 轴向柱塞泵：PVB5/6、PVB10/15、PVB20/29、PVB45、PVB90；PVB20-F-MRSFXN-10-CM-CVP-C-G-L-11-GE1； PV/PF柱塞泵：PF066、PF090、PF130、PF180、PF250、PV066、PV090、PV130、PV180、PV250；PV 060M2 R 1A 1A 1N1V20EU17**10 PV250、PV360、PV500、PV750、PF250、PF360、PF500、PF750、TPV130、TPV180、TPV250、TPV360、TPV500、TPF130、TPF180、TPF250、TPF360、TPF500；PV 250M 7R1N1R1S1V30EU11DP11； PVH柱塞泵：PVH57QIC，PVH63QIC，PVH74QIC，PVH81QIC，PVH98QIC，PVH106QIC，PVH131QIC PVH141QICPVH074R13AA10B252000001AF1AB 010A 及PVM018/020、PVM045/050、PVM057/063、PVM131/141、PVQ10、PVQ13、PVQ16、PVQ20、PVQ25、PVQ32、PVQ40、PVQ45、PVQ63、
VICKERS威格士PVH141柱塞泵常用型号.
PVH141R13AF30A00010A PVH141C-RF-13S-10-CM7-31
PVH141R13AF30A230000001001AA010A PVH141C-RF-13S-11-C23-31
PVH141R13AF30A230000002001AA010A PVH141C-RSF-13S-11-C23-31
PVH141R13AF30B252000002001AA010A PVH141C-RSF-13S-11-C25V-31
PVH141R13AF30A230000001001AB010A PVH141QIC-RF-13S-10-C23-31
PVH141R13AF30B250000001001AB010A PVH141QIC-RF-13S-10-C25-31
PVH141R13AG30B252000001001AB010A PVH141QIC-RM-13S-10-C25V-31
PVH141R13AG30B212000001001AE010A PVH141QIC-RM-13S-11-C21V-31
PVH141R13AG30A250000001001AE010A PVH141QIC-RM-13S-11-C25-31
PVH141R13AF30A230000002001AB010A PVH141QIC-RSF-13S-10-C23-31
PVH141R13AF30AAC010A PVH141QPC-RF-13S-10-CM7-31
PVH141R13AF30AAF010A PVH141QPC-RF-13S-11-CM7-31
VICKERS威格士PVH131柱塞泵型号
PVH131R16AG30B182000001AJ1AA010A PVH131C-RBM-16S-11-C18V-31
PVH131R16AF30A250000001AM100010A PVH131C-RCF-16S-10-C25-31
PVH131R16AF30B252000001AM100010A PVH131C-RCF-16S-10-C25V-31
PVH131R16AF30B252000001AA100010A PVH131C-RCF-16S-10-C25V-31-114
PVH131R16AF30A070000001AM100010A PVH131C-RCF-16S-10-CM7-31
PVH131R16AF30E252012001AM1AA010A PVH131C-RCF-16S-11-C25VT12-31-CD
PVH131R16AF30J002004BD1AM1AA010A PVH131C-RCF-16S-11-ICT4-31-142
PVH131R03AF30B252000009AM1AM010A PVH131C-RCF-3S-10-C25V-31-117
PVH131R03AF30A070000001AM100010A PVH131C-RCF-3S-10-CM7-31
PVH131R03AF30B252000001AM1AA010A PVH131C-RCF-3S-11-C25V-31
PVH131R12AF30A250000001002AA010A PVH131C-RF-12D-11-C25-31
PVH131R12AF30B25200000100100010A PVH131C-RF-12S-10-C25V-31
PVH131R12AF30B252000001001AA010A PVH131C-RF-12S-11-C25V-31
PVH131R12AF30B252000AF1001AA010A PVH131C-RF-12S-11-C25V-31-023
PVH131R13AF30A25000000100100010A PVH131C-RF-13S-10-C25-31
PVH131R13AF30B25200000100100010A PVH131C-RF-13S-10-C25V-31
PVH131R13AF70B25200000100100010A PVH131C-RF-13S-10-C25V-31-057
PVH131R13AF30A00010A PVH131C-RF-13S-10-CM7-31
PVH131R13AF30B07200000100100010A PVH131C-RF-13S-10-CM7V-31
PVH131R13AF30H002000BD100100010A PVH131C-RF-13S-10-IC-31-CD-142
PVH131R13AF30A250000001001AA010A PVH131C-RF-13S-11-C25-31
PVH131R13AF30A250000001001AN010A PVH131C-RF-13S-11-C25-31-115
PVH131R13AF30D250014001001AA010A PVH131C-RF-13S-11-C25T14-31
PVH131R13AF30D250019001001AA010A PVH131C-RF-13S-11-C25T19-31
PVH131R13AF30B252000001001AA010A PVH131C-RF-13S-11-C25V-31
PVH131R13AF30E252015001001AA010A PVH131C-RF-13S-11-C25VT15-31
PVH131R13AF30E252004001001AA010A PVH131C-RF-13S-11-C25VT4-31
PVH131R13AF30AAA010A PVH131C-RF-13S-11-CM7-31
PVH131R13AF30AAN010A PVH131C-RF-13S-11-CM7-31-115
PVH131R02AF30B21200000100200010A PVH131C-RF-2D-10-C21V-31-046
PVH131R02AF30B252000001002AP010A PVH131C-RF-2D-10-C25V-31-165
PVH131R02AF30B252000AL1002AP010A PVH131C-RF-2D-10-C25V-31-206
PVH131R02AF30B252000AL1002AP010A PVH131C-RF-2D-10-C25V-31-210
PVH131R02AF30B252000001002AA010A PVH131C-RF-2D-11-C25V-31-046
PVH131R02AF30A25000000100100010A PVH131C-RF-2S-10-C25-31-046
PVH131R02AF30B25200000100100010A PVH131C-RF-2S-10-C25V-31-046
PVH131R02AF30B192000AA1001AA010A PVH131C-RF-2S-11-C19VB-31-CD
PVH131R02AF30B252600001001AA010A PVH131C-RF-2S-11-C25V26-31
PVH131R02AF30B252000001001AA010A PVH131C-RF-2S-11-C25V-31
PVH131R02AF30B252000001001AA010A PVH131C-RF-2S-11-C25V-31-046
PVH131R02AF30B282000AA1001AA010A PVH131C-RF-2S-11-C28VB-31-046
PVH131R02AF30B282000AR1001AA010A PVH131C-RF-2S-11-C28VB-31-219
PVH131R02AF30B282000BK1001AT010A PVH131C-RF-2S-11-C28VB-31-255
PVH131R03AF30A17000000100100010A PVH131C-RF-3S-10-C17-31
PVH131R03AF30A25000000100100010A PVH131C-RF-3S-10-C25-31
PVH131R03AF30B25200000100100010A PVH131C-RF-3S-10-C25V-31
PVH131R03AF30A00010A PVH131C-RF-3S-10-CM7-31
PVH131R03AF30A250000001001AA010A PVH131C-RF-3S-11-C25-31
PVH131R03AF30A250000001001AR010A PVH131C-RF-3S-11-C25-31-164
PVH131R03AF30D250004001001AA010A PVH131C-RF-3S-11-C25T4-31
PVH131R03AF30E252015001001AA010A PVH131C-RF-3S-11-C25VT15-31
PVH131R03AF30J002000BD1001AA010A PVH131C-RF-3S-11-ICT4-31-142
PVH131R13AF30A25000000200100010A PVH131C-RSF-13S-10-C25-31
PVH131R13AF30B25200000200100010A PVH131C-RSF-13S-10-C25V-31
PVH131R13AF30A00010A PVH131C-RSF-13S-10-CM7-31
PVH131R13AF30A250000002001AR010A PVH131C-RSF-13S-11-C25-31-164
PVH131R02AF30B252000002001AA010A PVH131C-RSF-2S-11-C25V-31
PVH131R03AF30A25000000200100010A PVH131C-RSF-3S-10-C25-31
PVH131R03AF30A250000002001AA010A PVH131C-RSF-3S-11-C25-31
PVH131R16AF70E252004001AD1AG010A PVH131QC3-RAF-16S-11-C25VT4-31-087
PVH131R16AF70E162005001AD1AE010A PVH131QIC3-RAF-16S-11-C16VT5-31
PVH131R16AF70E252004001AD1AE010A PVH131QIC3-RAF-16S-11-C25VT4-31
PVH131R16AF70F252004001AD1AE010A PVH131QIC3-RAF-16S-11-C25VT4S-31
PVH131R16AF70E072004001AD1AE010A PVH131QIC3-RAF-16S-11-CM7VT4-31
PVH131R13AF70E182005001001AE010A PVH131QIC3-RF-13S-11-C18VT5-31
PVH131R13AF70B252000001001AE010A PVH131QIC3-RF-13S-11-C25V-31
PVH131R13AF70E252004001001AE010A PVH131QIC3-RF-13S-11-C25VT4-31
PVH131R13AF70AAE010A PVH131QIC3-RSF-13S-11-CM7-31
PVH131L16AF30B252000001AD1AB010A PVH131QIC-LAF-16S-10-C25V-31
PVH131L16AF30A250000001AD1AE010A PVH131QIC-LAF-16S-11-C25-31
PVH131L03AF30B252000001AD1AB010A PVH131QIC-LAF-3S-10-C25V-31
PVH131L16AF30A250000001AJ1AE010A PVH131QIC-LBF-16S-11-C25-31
PVH131L16AF30A250000001AM1AE010A PVH131QIC-LCF-16S-11-C25-31
PVH131L16AF30D250004001AM1AE010A PVH131QIC-LCF-16S-11-C25T4-31
PVH131L03AF30A250000001AM1AE010A PVH131QIC-LCF-3S-11-C25-31-CD
PVH131L13AF30A250000001001AB010A PVH131QIC-LF-13S-10-C25-31
PVH131L13AF30B252000001001AB010A PVH131QIC-LF-13S-10-C25V-31
PVH131L13AF30AAB010A PVH131QIC-LF-13S-10-CM7-31
VICKERS威格士PVH074柱塞泵型号.
PVH074R01AA10A25000000100100010A PVH74C-RF-1S-10-C25-31
PVH074R01AA10B25200000100100010A PVH74C-RF-1S-10-C25V-31
PVH074R01AA10A250000001001AA010A PVH74C-RF-1S-11-C25-31
PVH074R01AA10B252000001001AA010A PVH74C-RF-1S-11-C25V-31
PVH074R02AA10A25000000100100010A PVH74C-RF-2S-10-C25-31
PVH074R02AA10B25200000100100010A PVH74C-RF-2S-10-C25V-31
PVH074R02AA10B252000001001AA010A PVH74C-RF-2S-11-C25V-31
PVH074R01AA10A25000000200100010A PVH74C-RSF-1S-10-C25-31
PVH074R01AA10B25200000200100010A PVH74C-RSF-1S-10-C25V-31
PVH074R01AA10A250000002001AA010A PVH74C-RSF-1S-11-C25-31
PVH074R02AA10A25000000200100010A PVH74C-RSF-2S-10-C25-31
PVH074R02AA10B25200000200100010A PVH74C-RSF-2S-10-C25V-31
PVH074R01AA10A250000001001AB010A PVH74QIC-RF-1S-10-C25-31
PVH074R01AA10B252000001001AB010A PVH74QIC-RF-1S-10-C25V-31
PVH074R01AA10A250000001001AE010A PVH74QIC-RF-1S-11-C25-31
PVH074R01AA10B252000001001AE010A PVH74QIC-RF-1S-11-C25V-31
PVH074R02AA10A250000001001AB010A PVH74QIC-RF-2S-10-C25-31
PVH074R02AA10B252000001001AB010A PVH74QIC-RF-2S-10-C25V-31
PVH074R02AA10A250000001001AE010A PVH74QIC-RF-2S-11-C25-31
PVH074R02AA10B252000001001AE010A PVH74QIC-RF-2S-11-C25V-31
PVH074R01AB10A250000001001AB010A PVH74QIC-RM-1S-10-C25-31
PVH074R02AB10A250000001001AE010A PVH74QIC-RM-2S-11-C25-31
PVH074R01AA10A250000002001AB010A PVH74QIC-RSF-1S-10-C25-31
PVH074R01AA10B252000002001AB010A PVH74QIC-RSF-1S-10-C25V-31
PVH074R01AA10A250000002001AE010A PVH74QIC-RSF-1S-11-C25-31
PVH074R02AA10A250000002001AB010A PVH74QIC-RSF-2S-10-C25-31
PVH074R02AA10A250000002001AE010A PVH74QIC-RSF-2S-11-C25-31
PVH074R01AB10A250000002001AE010A PVH74QIC-RSM-1S-11-C25-31
VICKERS威格士PVH098柱塞泵型号.
PVH098R01AJ30A25000000100100010A PVH98C-RF-1S-10-C25-31
PVH098R01AJ30B25200000100100010A PVH98C-RF-1S-10-C25V-31
PVH098R01AJ30B252000001001AA010A PVH98C-RF-1S-11-C25V-31
PVH098R02AJ30A25000000100100010A PVH98C-RF-2S-10-C25-31
PVH098R02AJ30B25200000100100010A PVH98C-RF-2S-10-C25V-31
PVH098R02AJ30B252000001001AA010A PVH98C-RF-2S-11-C25V-31
PVH098R01AJ30A25000000200100010A PVH98C-RSF-1S-10-C25-31
PVH098R01AJ30B25200000200100010A PVH98C-RSF-1S-10-C25V-31
PVH098R02AJ30A25000000200100010A PVH98C-RSF-2S-10-C25-31
PVH098R02AJ30B25200000200100010A PVH98C-RSF-2S-10-C25V-31
PVH098R01AJ30A250000001001AB010A PVH98QIC-RF-1S-10-C25-31
PVH098R01AJ30B252000001001AB010A PVH98QIC-RF-1S-10-C25V-31
PVH098R01AJ30A250000001001AE010A PVH98QIC-RF-1S-11-C25-31
PVH098R02AJ30B252000001001AB010A PVH98QIC-RF-2S-10-C25V-31
PVH098R02AJ30A250000001001AE010A PVH98QIC-RF-2S-11-C25-31
PVH098R01AD30A250000001001AB010A PVH98QIC-RM-1S-10-C25-31
PVH098R01AD30A250000001001AE010A PVH98QIC-RM-1S-11-C25-31
PVH098R01AJ30A250000002001AB010A PVH98QIC-RSF-1S-10-C25-31
PVH098R01AJ30B252000002001AB010A PVH98QIC-RSF-1S-10-C25V-31
PVH098R01AJ30A250000002001AE010A PVH98QIC-RSF-1S-11-C25-31
PVH098R02AJ30A250000002001AB010A PVH98QIC-RSF-2S-10-C25-31
PVH098R02AJ30A250000002001AE010A PVH98QIC-RSF-2S-11-C25-31
PVH098R01AD30A250000002001AB010A PVH98QIC-RSM-1S-10-C25-31
PVH098R01AD30A250000002001AE010A PVH98QIC-RSM-1S-11-C25-31
PVH098R01AD30B252000002001AE010A PVH98QIC-RSM-1S-11-C25V-31
