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Vane pump

Vane pumps first appeared on the hydraulic scene, and quickly established themselves as an essential solution for many applications. In recent years, they have gained in popularity, offering undeniable economic, technical and ecological advantages to users. Want to find out more? In this extract, you can find out more about the operation, benefits and applications of this high-performance variant of the fixed-displacement pumps. .

What is a vane pump ?

Vane pumps are mechanical devices used in hydraulic systems to transfer fluids. They are characterised by a rotor fitted with vanes that move along the inside wall of a casing.

These pump models were first developed at the beginning of the 20th century and have since undergone constant improvements to meet the growing needs of hydraulic applications.

Over the years, rotary vane pumps have evolved into versatile and efficient solutions for transferring fluids in a variety of industries.

Today, they are widely used and recognised for their reliability, efficiency and performance in hydraulic systems.

How does a vane pump work ?

Pompes à palettes sèches et lubrifiées - Vide et Pression

The vane pump operates on a simple and effective mechanical principle.

It all starts with the movement of the rotor, driven by a motor and positioned inside the pump casing. This rotor, which is often eccentric, creates a space between itself and the inside wall of the casing.

The vanes, attached to grooves in the rotor, are pushed outwards by centrifugal force as it rotates, coming into contact with the inner wall of the housing. It is at this point that the vanes create chambers of variable volume between the rotor and the housing.

As the vanes move past the inlet port, a chamber of increasing volume is formed, creating a vacuum that draws the liquid in. As the chamber moves towards the discharge side of the pump, the volume decreases, compressing the liquid and creating pressure.

Finally, the fluid is expelled through the pump's discharge port. This process of creating variable-volume chambers is repeated continuously as the rotor rotates, ensuring a constant, even flow of fluid.

What are the advantages of vane pumps for your hydraulic system ?

Opting for a vane pump improves the overall efficiency of your system. Thanks to their high efficiency, they ensure optimum use of the energy supplied. What's more, these pumps can operate over a wide range of pressures. So they can meet your exact requirements in terms of operating pressure.

Another advantage of rotary vane pumps is that they are compact and lightweight. Their compact design makes them easy to integrate into your hydraulic system, even in confined spaces. What's more, these pumps are designed using robust materials and quality components, giving them high reliability and a long service life. This means they can withstand demanding operating conditions, ensuring consistent performance over time.

In terms of maintenance costs, rotary vane pumps also stand out. They generally require minimal maintenance, which reduces the costs associated with servicing them. So you can save money in the long term, while benefiting from a high-performance hydraulic system.

Finally, rotary vane pumps are highly versatile in terms of applications. They can be used in a variety of fields, from industrial machinery to mobile equipment. Their flexibility means they can adapt to different needs and environments.

To maximise the efficiency, reliability and performance of your hydraulic system, consider a vane pump. Consider these many benefits and choose the vane pump that best suits your specific needs.

What are the different types of fixed-displacement rotary vane pump ?

Pompe À Palettes À Cylindrée Fixe PVQ 21 PVQ Maroc

A variety of vane pump types are available on the hydraulics market. Each of these types has specific features and functions to meet the diverse needs of hydraulic applications.

- The flat vane pump

This is the simplest and most commonly used type of vane pump.

It consists of a vane rotor mounted eccentrically in a housing. The vanes are held in contact with the inside wall of the housing by centrifugal force and fluid pressure. As the rotor rotates, the vanes move outwards, creating pump chambers that suck in and expel the fluid.

- The fixed-angle vane pump

In this type of vane pump, the vanes are mounted on a rotor that is inclined to the axis of rotation. This creates a variation in the volume of the pump chambers as the rotor rotates. Fluid is drawn in and expelled as the vanes move along the inside wall of the casing.

- The two-stage vane pump

It comprises two sets of vanes superimposed on a rotor. Each set of vanes creates a separate pump chamber. This increases the pump's output pressure.

- Internal gear vane pump

This variant combines the principle of vane pumps and gear pumps. The vanes are mounted on internal gears that mesh with a ring gear. As the gears rotate, the vanes move and create pump chambers for the fluid.

It is important to note that these types of fixed displacement rotary vane pumps can vary depending on the manufacturer's specific design and performance characteristics.

What are the most common applications for rotary vane pumps ?

Pompe à palettes — Wikipédia

Vane pumps are widely used in a variety of hydraulic applications. Here are a few examples, based on the industries or sectors in which they are used.

- The manufacturing industry

Vane pumps are used in machine tools, hydraulic presses, cooling systems and other industrial equipment to provide a constant, even flow of hydraulic fluid.

- The agricultural sector

They are used in agricultural machinery such as combines, tractors, sprayers and irrigation equipment, for operations such as power transmission, movement control and operation of hydraulic tools.

- Civil engineering

Vane pumps are used in site machinery such as excavators, cranes, graders and compactors, for lifting, moving and hydraulic control functions.

- The car

They are used in commercial vehicles, trucks, buses and lifting equipment to provide steering assistance, hydraulic braking and suspension systems.

- Elevation systems

Vane pumps are used in hydraulic lifts, lifting tables and lifting systems to provide the hydraulic power needed to raise and lower loads.

- Mobile equipment

They are used in construction machinery and mobile equipment such as forklift trucks, aerial work platforms and agricultural machinery, for lifting, steering and movement functions

Still on the same theme

- Piston pump

- Screw pumps

- Hydraulic gear pump

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