Linked from that page is this article which goes into the design and development of the motor a bit: http://www.electronicsweekly.com/news/design/power/dyson-va

Linked from that page is this article which goes into the design and development of the motor a bit: http://www.electronicsweekly.com/news/design/power/dyson-vacuums-104000rpm-brushless-dc-technology-2009-06/ http://www.electronicsweekly.com/news/design/power/dyson-vac...