Dyson digital motors

Michael Faraday discovered electromagnetic induction, the principle behind the electric motor, in 1831. Yet, despite being technologically advanced at the time, electric motors have changed very little since. Bulky, old-fashioned components and lots of moving parts prone to failure. Dyson engineers wanted to change all that.

Dyson engineers have spent a decade developing new types of highly efficient digital motors. The Dyson digital motor is smaller, lighter, cleaner and more power-efficient than conventional electric motors.

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, which is bad for the environment.

1 Conventional 2D impeller 1
2 Bulky copper wirings in rotor 2
3 Friction contact Carbon brushes wear out and emit carbon dust 3
4 Low speed bearing 4
5 Armature 5

Dyson digital motors

Dyson digital motors use digital pulse technology, spinning at up to 104,000 times a minute (five times faster than a racing car engine). They are incredibly efficient too – due in part to high tolerances. For example, the impeller spins at over 600mph with only 0.3mm clearance between the blade tip and the impeller housing. And no carbon brushes means no carbon particle emissions.

1 High-speed 3D impeller 1
2 Iron core rotor with no windings 2
3 No carbon brushes, no carbon particle emissions 3

Dyson Airblade™ hand dryer

The Dyson digital motor in the Dyson Airblade™ hand dryer sucks in 37 litres of washroom air every second, pulls it through a HEPA filter, then forces it out through two continuous apertures the width of an eyelash. This generates sheets of air travelling at 400mph, to dry hands in just 10 seconds.

Dyson DC22 in the US

The DC22 is one of Dyson's newest American machines. Powered by a Dyson digital motor version, it's 1/3 smaller than a full-size Dyson machine, lighter and easier to store - but with no compromise on pick-up.

Dyson D30 and DC31 handhelds

The Dyson digital motor powers our latest battery operated handhelds, DC30 and DC31. The key to its superiority is its power efficiency. The latest Dyson digital motor is three times faster and more power efficient than any other - meaning Dyson's new handhelds can deliver twice the airwatts for the same run time.

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Dyson proves no loss of suction and pick up performance using results from IEC60312 Cl 2.2, 2.3, 2.8, 2.9, ASTM F2607, F608 and F558, and DTM755 - an independently conducted Dyson test. Dyson proves Dyson’s most advanced cleanerhead technology and engineered to pick up more dirt based on the results of IEC 60312 Cl 2.2, 2.3, 2.8, ASTM F2607, F608 and F558, and DTM 755- an independently conducted Dyson test. ASTHMA & ALLERGY FRIENDLY and the ASTHMA & ALLERGY FRIENDLY LOGO are Certification Marks and Trademarks of ALLERGY STANDARDS LIMITED. AAFA is a Registered Trademark of the ASTHMA AND ALLERGY FOUNDATION OF AMERICA.The following Dyson uprights on Dyson.com have been certified Asthma & Allergy Friendly™: DC14, DC17, DC22, DC23 Turbinehead, DC24, DC25 and DC28. The tools that come with Dyson vacuums are not yet certified as Asthma & Allergy Friendly™.