How does a variable displacement piston pump work?

A common variable displacement pump used in vehicle technology is the axial piston pump. As the pistons rotate, the angle of the plate causes them to move in and out of their cylinders. A rotary valve at the opposite end from the swashplate alternately connects each cylinder to the fluid supply and delivery lines.

What is a PVM pump?

A Versatile Pump with a Modular Design. The PVM line of variable-displacement, axial-piston pumps is designed to adapt to your most demanding applications. Computer-optimized and with multiple controls available, PVM pumps deliver high performance in a compact design.

Which pumps are variable displacement pumps?

Piston pumps and Vane pumps are the two categories of variable displacement pumps. The wide volumetric & pressure efficiency range of variable displacement piston pumps makes it popular than vane pumps.

How is displacement determined by piston pumps?

Each piston can be kept in contact with the swash plate by springs or by a rotating shoe plate linked to the swash plate. Pump displacement is controlled by altering the angle of the swash plate; the larger the angle, the greater the displacement.

What is the difference between a fixed displacement pump and variable displacement pump?

Simple, fixed-displacement pumps are perfect for single jobs that need to be repeated indefinitely over long periods of time; variable-displacement pumps can be used to power a wider variety of tools, but require more expense and more attention.

Is a piston pump a fixed-displacement?

Two common types of fixed-displacement pumps you can use are the bent axis piston pump and the gear pump.

What is the difference between a fixed-displacement pump and variable displacement pump?

What is the difference between a fixed displacement pump and variable-displacement pump?

What’s one disadvantage of a piston style pump?

Piston pumps cost more per unit to run compared to centrifugal and roller pumps. The mechanical parts are prone to wear, so the maintenance costs can be high. The valves must be resistant to abrasives for large solids to pass through.