Hydraulic Pumps and Motors

The function of a hydraulic pump is to convert the mechanical energy made available by the motor into hydraulic energy. Coupled with electric motors, pumps are among the main components of hydraulic units, able to move the fluid within the hydraulic system. There are different types of hydraulic pumps, the main ones are: gear, vane, piston choose depending on the type of use.

Vane pump

Vane pump

Vane pumps are available in a wide range of nominal sizes.They are used when medium operating pressures and reduced noise emissions are required.

Gear pumps

Gear pumps

The gear pump is a type of fixed displacement pump, very common in hydraulic applications. The main construction forms are internal gear pumps and external gear pumps. The former has as their characteristics noiselessness, high overall efficiency and low flow rate pulsations; the latter have as their main characteristics the lightness and simplicity of construction.

Piston pumps

Piston pumps

In piston pumps, the volume variation is obtained with the alternating sliding of a piston in a cylinder, and suitable check valves force the fluid to flow in one direction only and prevent its reflux during the stroke of piston return.