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Piston Pump Parts

ETERNAL HYDRAULIC

Komatsu, Rexroth, Sauer, Hitachi,  Catpillar, KYB, Kawasaki, Toshiba, Linde, Vickers, Yuekn, Nachi…

Eternal Hydraulic Piston Pump Parts

Eternal Hydraulic supply replacement piston pump parts for Komatsu, Rexroth, Sauer, Hitachi,  Catpillar, KYB, Kawasaki, Toshiba, Linde, Vickers, Yuekn, Nachi…

Please consult online customer service for more models.

 

 

Advantages of Eternal Piston Pump Parts

  • Completely interchangeable with origina
  • Very competitive price
  • 1 year of warranty
  • Short delivery time

 

 

Introduction of Piston Pump Parts

The construction of this pump is a little complicated, and there are relatively few clearances between its working parts. It ensures a consistent discharge at high pressure. Other variations are similar to this one but with small differences. As a result, it is critical to thoroughly examine each of its components. Let’s look at the components of a commonly used straight axis piston pump.

The housing is built of a rust-resistant and durable material, usually steel alloy. Valve plate, piston assembly, cylinder block, swashplate, shoe plate, and driven shaft are all stored here.

Main piston Pump Parts

Cylinder Block

It’s attached to the driving shaft and spins at the same rate as the shaft. There are axial bores in this area. They are usually between the ages of 8 and 12. These bores move up and down as the piston goes up and down. This block has a little amount of clearance with the housing. The axis of this pump gives it its name. The driving shaft’s axis is the same as the cylinder block, hence it’s known as a straight axis piston pump. It features a valve plate attached to the intake and outlet ports on one end and a piston and swash plate assembly on the other.

Piston Assembly

The piston travels via the cylinder block’s axial bores. The shoe joint connects this piston to the shoe plate. On a swash plate, this shoe plate is attached.

The number of pistons in a car is usually between 8 and 12. It’s always an even number of them. They travel in an axial direction, which means they reciprocate in the axial bores.

Rotating Barrel

The piston assembly is housed in a spinning barrel. It features slots in which pistons are installed. It is built in such a way that as the turning barrel turns, so do the pistons. This mechanism aids in the fluid displacement in the piston pump.

Intake Port

This is the section where liquid or gas input is provided.

Discharge

This is the discharge side of the system.

Port Plate

The port plate is another significant component that separates the fluid from the intake and discharge ports. The working fluid must flow through this port plate, whether it is a liquid or a gas.

Shaft

Like all other types of pumps, the shaft is the most important component of piston pumps. It has a spinning barrel as well as a swashplate. Let’s attempt to figure out what a swashplate is.

Swash Plate

The shoe plate is the one to which a spherical joint/shoe joint connects pistons. The swash plate is then attached to this shoe plate. This plate is attached to the axis of rotation at a specified angle. It gives the shoe plate an angle, which impacts the pump’s discharge. As a result, as we adjust this angle, the pump’s discharge varies as well.

The Significance of a Swash Plate

  • To make a modification in the pump’s discharge.
  • Changing the angle of the swash plate to modify the length of the pump’s stroke.

Changing angles is all it takes to do this. There will be no suction and no discharge if the swash plate is perpendicular to the axis. This is because the piston’s stroke length will be minimal, and it will occupy the bore in the cylinder, leaving no room for fluid to enter or depart. As a result, the piston will remain stationary and the entire system will continue to rotate.

When the angle is slightly inclined, the pistons will now reciprocate because their stroke length will change as the cylinder block rotates. As a result, the bore becomes empty, allowing liquid to be sucked and pushed out through the delivery port. The amount of space generated in the bore is proportional to the amount of piston movement out of the cylinder when coupled to the swash plate. The length of the stroke is hence directly connected to this gap. The angle of the swash plate is proportional to the stroke length. As the swash plate becomes more angled, the piston moves further away from the bore, producing more room and, as a result, greater discharge. As a result, the angle of the swash plate is critical in this pump.

 

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