An impeller is a rotating component equipped with vanes or blades used in turbomachinery (e. g. centrifugal pumps). Flow deflection at the impeller vanes allows mechanical power (energy at the vanes) to be converted into pump power output.

Which pump uses an impeller?

Summary. A centrifugal pump operates through the transfer of rotational energy from one or more driven rotors, called impellers. The action of the impeller increases the fluid's velocity and pressure and directs it towards the pump outlet.

What is an impeller do?

An impeller is a part of a pump or compressor that rotates at a high speed and acts as a propeller to increase a fluid's pressure and flow rate.