Mofuta oa pompo ke positive displacement vane pump, work by vane centrifugal sliding, the flow rate and the shaft speed related, stator internal surface using the domestic original compound curve made, the stator and rotor, baffle, vane composition of ten sealing cavity, hobane stator surface ke komporo ea motsoako, ha rotor rotation, the inlet cavity suction of the inlet sucked butle-butle e tla eketseha, 'me khatello ea oli e tla eketseha butle-butle.