Parsing flexible working principle of vane pump ( 3)

when flexible while leaving the eccentric block, vane pump plunger AV pump eccentric pump cavity with a convex block. The volume increase from time to time, between the vane vacuum, which makes liquid uninterrupted by suction pump cavity entrance.
by suction pump cavity of hydraulic system of liquid into the discharge. When the flexible blade rotation.

bends when flexible blade when in contact with the eccentric convex block again. And along with the motion of a squeeze, making the liquid continuously, without pulse discharge pump cavity, so as to finish the whole course of suction line.