The difference between editing and quantitative variable pump pump 1. In the variable vane pump variable pump · maintenance, oil pressure when the blade is in the area, through the pressure of the oil at the bottom of the blade when the blade is in the suction area at the bottom of the blade through the suction chamber, so that hydraulic pressure leaves the top and bottom of the basic balance, which avoids the quantitative vane pump stator surface in the suction area of ??serious wear problems. If you still pass the oil pressure in the suction chamber at the bottom of the blade, the top surface of the stator blade will give a more large frictional force, so that the effect of weakening the pressure feedback. 2. There inclination variable vane pump · care, but the tilt direction coincides with the quantitative vane pump Rather, it is because the blade down pressure variable vane pump is balanced, the outward movement of the blades in the suction area mainly depends on its rotation when centrifugal effect. According to mechanical analysis, this inclination direction is more conducive to the blade projecting outwardly under centrifugal effect. 3. The structure of the complex variable vane pump, variable pump outline large size, the relative movement of parts and more leaks larger radial axis hydraulic pressure imbalance, noisy variable pump · maintenance of telephone, volumetric efficiency and mechanical no quantitative vane pump efficiency is high; however, it can automatically adjust the pressure according to the load flow, power use is reasonable, can reduce heating oil. Pressure limiting type variable vane pump is a single-acting} {stator pump, the pump along a certain direction for translational motion, work, according to changes in system load by the force balance are located on both sides of the variable stator vane pump piston and spring preload principle, you can change the variable displacement pump and variable displacement pump rotor stator eccentricity, thus changing the variable vane pump flow. Steady flow pump system {} double acting vane pump: the completion of each revolution of the rotor suction, each secondary drain. Double acting vane pump compared with single acting vane pump, the flow uniformity, the basic balance suffered radial hydraulic pressure rotor body. Double acting vane pump is generally quantitative outflow, played the role of steady flow. Asker evaluation study, O (∩_∩) O Thank variable pump · Specialist, variable pump, Jinan crystal by crystal Chong Chong hydraulic Hydraulic Machinery Limited. Jinan Jing Chong Hydraulic Machinery Co., Ltd. (www.jnjcyy.com) (www.jnjcyy.com) strong, credible, in Jinan, Shandong mining machinery industry has accumulated a large number of loyal customers. The company better work attitude and continuous improvement to create innovative ideas will lead crystal hydraulic and you hand into the brilliant, for a better future!