Dyson digital motor

 

The problem with conventional motors

Conventional A/C motors use big, fragile fans, copper windings and brushes that wear out easily, making them inefficient and unreliable. And as the carbon brushes wear down, they emit carbon particles into the air.

The Dyson digital motor

The Dyson digital motor uses digital pulse technology, spinning at up to 104,000rpm (five times faster than a racing car engine). It's incredibly efficient too – due in part to high tolerances. For example, the impeller spins at over 900km/h with only 0.3mm clearance between the blade tip and the impeller housing. And no carbon brushes means no carbon particle emissions.

 

How the Dyson digital motor works