美国VICKERS@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。VICKERS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。

威格士柱塞泵过热 液压泵过度发热有两个原因，一是机械摩擦生热。由于运动表面处于干摩擦或半干摩擦状态，运动部件相互摩擦生热。二是液体摩擦生热。高压油通过各种缝隙泄漏到低压腔，大量的液压能损失转为热能。所以正确选择运动部件之间的间隙、油箱容积和冷却器，可以杜绝泵的过度发热和油温过高的现象。另外，回油过滤器堵塞造成回油背压过高，也会引起油温过高和泵体过热。

美国VICKERS@威格士柱塞泵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   威格士柱塞泵 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  威格士柱塞泵  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
PVH131R13AF30A07000000200100010A   PVH131C-RSF-13S-10-CM7-31
PVH131R13AF30A250000002001AR010A   PVH131C-RSF-13S-11-C25-31-164
PVH131R02AF30B252000002001AA010A   PVH131C-RSF-2S-11-C25V-31
威格士柱塞泵 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
PVH131R13AF70B252000001001AE010