美国原厂出售VICKERS柱塞泵 威格士柱塞泵，是由电动机提供泵的动力，经鼓型齿联轴器带动减速机转动。由减速机减速带动曲轴旋转。通过曲柄连杆机构，将旋转运动转变为十字头和柱塞为往复运动。当柱塞向后死点移动时，泵容积腔逐步增大，泵腔内压力降低，当泵腔压力低于进口压力时，吸入阀在进口端压力作用下开启，液体被吸入；当柱塞向前死点移动时，泵腔内压力增大，此时吸入阀关闭，排出阀打开，液体被挤出液缸，达到了吸入和排出的目的。
美国原厂出售VICKERS柱塞泵 威格士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。
威格士柱塞泵工作阶段
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。
结论：通过上述讨论，得出下列结论
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
常用型号
PVH131L12AF30B282000001AD2AA010A   PVH131C-LAF-12D-11-C28V-31
PVH131L12AF30B252000001AD100010A   PVH131C-LAF-12S-10-C25V-31
PVH131L12AF30B252000001AD1BG010A   PVH131C-LAF-12S-10-C25V-31-159
PVH131L12AF30K250000001AD100010A   PVH131C-LAF-12S-10-EDC25-10
PVH131L12AF30A130000AG1AD1AA010A   PVH131C-LAF-12S-11-C13-31
PVH131L16AF30A250000001AD100010A   PVH131C-LAF-16S-10-C25-31
PVH131L16AF30B252000001AD100010A   PVH131C-LAF-16S-10-C25V-31
PVH131L16AF30D180006001AT1AA010A   PVH131C-LAF-16S-11-C18T6-31-CD-031
PVH131L16AF30D250004001AD1AA010A   PVH131C-LAF-16S-11-C25T4-31
PVH131L02AF30B212000001AD200010A   PVH131C-LAF-2D-10-C21V-31-036
PVH131L02AF30B212000001AD2AA010A   PVH131C-LAF-2D-11-C21V-31-036
PVH131L03AF30E272015001AD2AA010A   PVH131C-LAF-3D-11-C27VT15-31
PVH131L03AF30A250000001AD100010A   PVH131C-LAF-3S-10-C25-31
PVH131L03AF30B252000001AD100010A   PVH131C-LAF-3S-10-C25V-31
PVH131L03AF30E252004001AD1AA010A   PVH131C-LAF-3S-11-C25VT4-31
PVH131L03AF30F282014001AT1AA010A   PVH131C-LAF-3S-11-C28VT14S-31-31
PVH131L12AF30B252000001AJ200010A   PVH131C-LBF-12D-10-C25V-31
PVH131L12AF30B252000001AJ100010A   PVH131C-LBF-12S-10-C25V-31
PVH131L12AF30B252000001AY100010A   PVH131C-LBF-12S-10-C25V-31-114
PVH131L12AF30B502000001AJ1AA010A   PVH131C-LBF-12S-11-C31V-31
PVH131L02AF30B162000001AJ1AA010A   PVH131C-LBF-2S-11-C16V-31
PVH131L02AF30B252000001AJ1AA010A   PVH131C-LBF-2S-11-C25V-31
PVH131L03AF30B252000001AJ1AA010A   PVH131C-LBF-3S-11-C25V-31
PVH131L12AF30B252000001AM2AA010A   PVH131C-LCF-12D-11-C25V-31
PVH131L12AF30B482000001AA1AA010A   PVH131C-LCF-12S-11-C275V-31-CD-114
PVH131L16AF30B252000001AM100010A   PVH131C-LCF-16S-10-C25V-31
PVH131L03AF30B252000001AM1AA010A   PVH131C-LCF-3S-11-C25V-31
PVH131L12AF30A250000001002AA010A   PVH131C-LF-12D-11-C25-31
PVH131L12AF30B25200000100100010A   PVH131C-LF-12S-10-C25V-31
PVH131L12AF30B252000001001AM010A   PVH131C-LF-12S-10-C25V-31-118
PVH131L33AF30B252000001002AA010A   PVH131C-LF-13D-11-C25V-31-259
PVH131L13AF30A25000000100100010A   PVH131C-LF-13S-10-C25-31
PVH131L13AF30B25200000100100010A   PVH131C-LF-13S-10-C25V-31
PVH131L13AF30B192000AK1001AA010A   PVH131C-LF-13S-11-C19V-31-188
PVH131L13AF30B252000001001AA010A   PVH131C-LF-13S-11-C25V-31
PVH131L29AF30B25200000100100010A   PVH131C-LF-29S-10-C25V-31-046
PVH131L29AF30B25340000100100010A   PVH131C-LF-29S-10-C25V34-31-CD-046
PVH131L02AF30B21200000100200010A   PVH131C-LF-2D-10-C21V-31-046
PVH131L02AF30B252000001002AA010A   PVH131C-LF-2D-11-C25V-31
PVH131L02AF30B252000001008AA010A   PVH131C-LF-2D-11-C25V-31-214
PVH131L02AF30B25200000100100010A   PVH131C-LF-2S-10-C25V-31-046
PVH131L02AF30B252000AL1001AP010A   PVH131C-LF-2S-10-C25V-31-208
PVH131L02AF30B192000AA1001AA010A   PVH131C-LF-2S-11-C19VB-31-CD
PVH131L02AF30B252000001001AA010A   PVH131C-LF-2S-11-C25V-31-046
PVH131L02AF30B253100001001AA010A   PVH131C-LF-2S-11-C25V31-31
PVH131L02AF30B282000AR1001AT010A   PVH131C-LF-2S-11-C28VB-31-220
PVH131L02AF30B282000BK1001AT010A   PVH131C-LF-2S-11-C28VB-31-255
PVH131L03AF30B172000001002AA010A   PVH131C-LF-3D-11-C17V-31
PVH131L03AF30A25000000100100010A   PVH131C-LF-3S-10-C25-31
PVH131L03AF30B25200000100100010A   PVH131C-LF-3S-10-C25V-31
PVH131L03AF30K25000000100100010A   PVH131C-LF-3S-10-EDC25-10
PVH131L03AF30E252015001001AA010A   PVH131C-LF-3S-11-C25VT15-31
PVH131L12AJ30B252000002001AA010A   PVH131C-LSF-12S-11-C25V-31
PVH131L13AF30A25000000200100010A   PVH131C-LSF-13S-10-C25-31
PVH131L02AJ30B252000002001AA010A   PVH131C-LSF-2S-11-C25V-31
PVH131L03AF30B25200000200100010A   PVH131C-LSF-3S-10-C25V-31
PVH131L03AF30B252000002001AP010A   PVH131C-LSF-3S-10-C25V-31-164
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