13-05-2017, 03:20 PM
A bladeless fan (sometimes called air multiplier) blows air from a ring without external blades. Its blades are hidden at its base. The first concept was created by Toshiba in 1981. Dyson claims that its bladeless fans (US patent 8,454,322) produce a more constant flow of air than traditional fans.
The air is sucked by a compressor at the base and then directed upwards into a ring. It comes out of a crack around the ring and passes over a shape like that of an airplane wing. Industrial designer Sir James Dyson named his fan the Air Multiplier.
Dyson sued Chinese companies because they began selling blunt fans for much less than Dyson.
Diagram is given below
![[Image: Dyson-Air-Multiplier-blue-print.jpg]](http://www.d-talks.com/wp-content/uploads/2011/06/Dyson-Air-Multiplier-blue-print.jpg)
