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Hydraulic Vane Pumps: Types, Uses And Tips For Their Operation

Hydraulic Vane Pumps: Types, Uses And Tips For Their Operation

The hydraulic vane pump is a mechanical pump that converts mechanical energy into hydraulic power. It generates the energy flow with sufficient force to overcome the pressure caused by the load.

Types Of Hydraulic Vane Pumps

Hydraulic vane pumps are available in single and double chamber types with either a fixed or variable displacement design. Only single-chamber vane pumps have variable displacement capabilities with manipulatable screws to change the flow of fluids.

How Do Hydraulic Vane Pumps Work?

A hydraulic vane pump consists of a central rotor, which is turned by a drive shaft. There are several vanes mounted in the drive shaft. The vanes and rotor spin within a ring. With fixed displacement vane pumps, the ring is circular on the outside, but elliptically on the inside. Variable displacement pumps have a circular ring that is offset from the shaft through an adjuster as the output flow increases.

Both fixed and variable vane pumps operate similarly with the vane tips being pushed out to the ring by a centrifugal force, assisted by a pilot pressure or springs to the vanes’ base. When the vanes move out, it forms fluid-filled cavities. These cavities compress during the outlet phase to drive oil out of the pump.

Uses Of Hydraulic Vane Pumps

Hydraulic vane pumps are not often used in mobile equipment since they are sensitive to dirt and lose performance quickly with dirty fluids. Hydraulic vane pumps are not suitable for use with high-viscosity fluids or high-pressure activities. They are excellent at handling low viscosity liquids, including ammonia, alcohol, gasoline, and propane.

Tips For The Operation And Maintenance Of Hydraulic Vane Pumps

Bear these tips in mind for the operation and maintenance of hydraulic vane pumps:

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