Side Channel Blowers
Principle of Operation
Regenerative side channel blowers work according to the impulse principle. This means that kinetic energy from a rotating impeller is transferred to the pumping medium and converted into pressure. The impeller is mounted directly on the shaft of the motor and, together with the specially shaped housing, forms the side channel.
The pumping medium is sucked in, compressed in the side channel and then discharged after one rotation. This allows a side channel blower to generate both vacuum and blast air. The motor power also influences the blower's pumping or discharge speed. The two silencers located on the inlet and discharge sides provide quiet operation.
With two-stage side channel blowers, an impeller is mounted directly on the shaft of the drive motor and together with the aluminium housing it forms the side channel, in which the medium is compressed and then discharged in a second stage, which works in the same way. The two-stage compression results in a higher differential pressure.