Overview of fixed-capacity two-wheel vane pumps：

? When the rotor of the variable capacity vane pump rotates, the tip of the vane is tightly attached to the inner surface of the stator under the action of centrifugal force and pressure oil. In this way, the working volume formed by the inner surfaces of the two blades, the rotor and the stator, first sucks oil from small to large, and then discharges oil from large to small. When the blades rotate one circle, oil absorption and oil discharge are completed once.

Working principle of variable capacity vane pump：

? The pump is composed of rotor 1, stator 2, blades 3, oil distribution plate and end cover. The inner surface of the stator is a cylindrical hole. There is an eccentricity between the rotor and the stator. The blades can slide flexibly in the slots of the rotor. Under the action of the centrifugal force during the rotation of the rotor and the pressure oil at the root of the blade, the top of the blade is attached to t