Design, Development and Testing of Axis Piston Pump

Design, Development and Testing of Axis Piston Pump

ABSTRACT
The hydraulic pumps found in virtually all mobile and industrial applications today use pistons, vanes, or gears to create the pumping action that produces flow. Each method features individual characteristics that differentiate it from the others and make it suitable for a particular range of applications. Piston pumps can have the pistons arranged in a radial or axial fashion. Axial piston pumps are available in a wide range of displacements and pressure capabilities that make them suitable for many mobile and industrial tasks. The bent axis piston pump designed, manufactured and tested. The pump has three pistons. Testing and trial of the piston pump to derive the performance characteristic of the pump drive namely, Discharge Vs Speed, Pressure Vs Speed, and Volumetric Efficiency Vs Speed. The volumetric efficiency is maximum 98.07% at 200 RPM.

INTRODUCTION 
Hydraulic pumps are used in hydraulic drive systems and can be hydrostatic or hydrodynamic. Hydrostatic pumps are positive displacement pumps while hydrodynamic pumps can be fixed displacement pumps, in which the displacement cannot be adjusted or variable displacement pumps, which have a more complicated construction that allows the displacement to be adjusted.
Piston pumps can have the pistons arranged in a radial or axial fashion. Radial types tend to be specialized for applications requiring very high power, while axial piston pumps are available in a wide range of displacements and pressure capabilities that make them suitable for many mobile and industrial tasks. Axial-piston pumps consist of a set of pistons that are fitted within a cylinder block and driven by an angled swash plate powered by the input shaft. As the swash plate rotates, the pistons reciprocate in their respective cylinder.
Design, Development and Testing of Axis Piston Pump
Design, Development and Testing of Axis Piston Pump
block bores to provide the pumping action. Axial-piston pumps are available with the input shaft and pistons arranged coaxially, or with the input shaft mounted at an angle to the piston bore. Bent axis pumps tend to be slightly more volumetrically efficient. One end of each piston is held in contact with the cam plate as the cylinder block and piston assembly rotates with the driveshaft. This causes the pistons to reciprocate within the cylinders. The length of the piston stroke is proportional to the angle that the cam plate makes with the pump centerline. A unique characteristic of a piston type pump is that the displacement can be changed simply by changing the angle of the swash plate. Any displacement between zero and maximum is easily achieved with relatively simple actuators to change the swash plate angle. Variable displacement pumps save power, increase the productivity or control the motion of a load precisely, safely and in an economical manner .The displacement varying mechanism and power to weight ratio of variable displacement piston pump makes them most suitable for control of high power levels.

Conclusion
The Bent axis piston pump is fabricated and satisfactorily working. Bent axis piston pump save power, increase the productivity or control the motion of a load precisely, safely and in an economical manner .The displacement varying mechanism and power to weight ratio of variable displacement piston pump makes them most suitable for control of high
power levels.

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