The rotor, has a number of slots machined along its length into which fit sliding vanes that ride on a film of oil. The rotor rotates within a cylindrical stator. During rotation, centrifugal force extends the vanes from their slots, forming individual compression cells. Rotation decreases the cell volume, increasing the air pressure.
The heat generated by compression is controlled by pressurised oil injection. The only continually moving part is the rotor, which is directly driven at very low speed (1450rpm), offering unrivalled reliability. The main benefit of this technology means that vane compressors last for a very long time and are an extremely reliable & proven technology.
Play the animation to see a rotary vane compressor in action:
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