AXIAL PISTON PUMP IN ENGINEERING: NOVEL OVERVIEW

Axial piston pumps release separate amounts of fluids into downstream piping. Each piston compartments creates a pressure rise and fall in the system piping, these pressure changes form a sine waves. This sine wave signifies the instantaneous flow rate of a single chambered and the mean flow rate of this pump is the average discharge per revolution. As increasing the number of pistons of an axial piston pump, that's means generating additional sinusoidal waves offset by time. As a result, the pressure fluctuations are reduced and decreasing amplitude of flow and pressure ripple. Hypothetically an unlimited number of pistons will completely remove release pulsation. Number of pistons varies by the type of pump construction. Commonly deal with piston pumps between one and eleven pistons, but in the industry where axial piston pump are designed a certain amount of confusion exists on the part of most designers regarding the trade-offs between designing a pump with an odd number of pistons and designing a pump with an even number of pistons. This proposal explores the flow and torque ripple which resulting from an axial piston pumps showing that the similarity between shafts torques and flow pulsations (ripple). explaining the relationship between the number of pistons and discharge flow-torque ripple by using graphical and numerical methods and finally establishing a numerical formulae relate between number of pistons and flow- torque pulsation factor and comparing the results of formulae of this present proposal with another previous work.