Structure of inclined disc piston pump

Axial piston pumps can be divided into inclined shaft type and inclined disc type. The following diagram shows the structure of the inclined disc axial piston pump. The pump consists of main components such as inclined plate 1, plunger 2, cylinder body 3, and oil distribution plate 4. The transmission shaft 5 drives the cylinder block 3 and the plunger 2 to rotate together. The inclined plate 1 and the oil distribution plate 4 remain stationary, while the plunger 2 is either mechanically or pressed against the inclined plate under the action of low-pressure oil. When the transmission rotates in the direction shown in the diagram, the plunger 2 gradually extends out of the cylinder body during its half cycle of rotating from bottom to top along the inclined plate, causing the sealed working chamber volume in the cylinder body hole to continuously increase, generating local vacuum to suck the oil through the oil distribution window a on the oil distribution plate 4. The plunger gradually pushes inward during its half cycle of rotating from top to bottom, causing the sealed working chamber volume to continuously decrease, and the oil is discharged outward from the oil distribution plate window b. Each plunger moves back and forth once every time the cylinder body rotates, completing one oil suction action. By changing the angle y of the inclined plate, the effective change in sealing working volume can be altered, achieving pump variability