Pressure Pulsation Characteristic Analysis of Port Plate/Cylinder Block of Unbalanced Axial Piston pump
To save installation space and weight of electrical hydroatatic system,only one pump control the differential cylinder with directly in closed loop,a new technical proposal that dividing one of the flow distributional window of axial piston pump into two ones is suggested.To matching the area ratio of the differential cylinder,that causes a large pressure pulsation,so this transition zone must be reasonable designed to reduce its influence,this paper design the unbalanced valve plate structures of damping groove,buffer and oil connect groove,we analyze flow characteristics simulation on the flow passage of the unbalanced valve plate,The pressure pulsation characteristic tested,The result indicate the correctness of the simulation results and designed are confirmed,realived new function of axial piston pump.
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