Design and calculation of return mechanism of axial piston pump with centre-spring supporter

This paper deals with the design of the back-stroke mechanism of the aviation axial piston pump. The back-stroke plate is commonly used and supported by retainer spring or limited by keeping-ring. The force analysis was carried out, and the method of design and calculating for the center spring force and the retainer plate size of the retainer plate structure were discussed. Simulation analysis was conducted with the relative velocity of contact point of the slipper retainer and bowl guide, and the factors affecting the relative velocity was analyzed. These works are of important significance for the design of the axial piston pump.