Troubleshooter
Through this page, I try to make a short description about axial piston pump although the subject is pretty familiar. If google it sure it will find some good information about it.
Even though the subject is widely known I will show more deeply information from source, where I learned and understand this hydraulic component.
For more information about Hydraulics browsing Hydraulic Basics is a click distance.
I will present here the axial piston pump because I know this type of pump. I serviced this kind of pump on board, bench tested and assembled in the workshop. From practical side I am familiar with this type of hydraulic pump.
Presentation of axial piston pump
Axial piston pumps convert rotary motion of an input shaft to an axial reciprocating motion of the pistons. A cylinder barrel with one piston bore is fit with one piston along the axis of the pump. A swashplate is position at an angle with the piston shoe riding on its surface. As the barrel is rotating the piston shoe follows the surface of the fixed swashplate.
Increasing volume
In one half of the rotation (0 – 180°) the piston moves out of the barrel giving an increasing volume.
Decreasing volume
In the second half of rotation (181° – 360°) the piston moves into the cylinder barrel, decreasing the volume and pushing the fluid into the system.
The shoe plate and bias spring force the shoes of the piston onto swashplate.
The port plate with kidney shaped holes separates the incoming fluid from the discharge fluid and is positioned at the opposite end of the cylinder barrel.
A shaft is attach to the cylinder barrel that is connect to the prime mover.
The picture shown here has a number of pistons moving inside of cylinder barrel. One side of the pump has the inlet port the opposite side has the outlet side.
For piston pump animation, follow the link http://home.kpn.nl/RBrink1955/frm_e.htm
