Bladeless fan
A bladeless fan (sometimes called an air multiplier) blows air from a ring with no external blades. Its blades are hidden in its base. The first concept was created by Toshiba in 1981.[1] Dyson claims that its bladeless fans (U.S. patent 8,454,322) produce a more constant airflow than traditional fans.[2]
The air is drawn in by a turbine in the base and then directed up into a ring. It comes out of a crack all around the ring and passes over a shape like that of an aircraft wing. Industrial designer Sir James Dyson named his fan the Air Multiplier.[3]
Dyson sued Chinese companies because they began selling bladeless fans for much less than Dyson.[4]
Q fan
In 2015, Panasonic announced a spherical bladeless fan.[5]
References
- ^ "Dyson fan: was it invented 30 years ago?". Telegraph. Retrieved 2014-01-09.
- ^ Samiljan, Tom (2009-10-12). "James Dyson Explains How New Bladeless 'Air Multiplier' Fan Works". Switched.com. Archived from the original on February 5, 2010. Retrieved 2014-01-09.
{{cite web}}: Unknown parameter|deadurl=ignored (|url-status=suggested) (help) - ^ "Sir James Dyson explains his bladeless fan". YouTube. Retrieved 2014-01-09.
- ^ Dan Milmo. "Dyson seeks to block copycat manufacturers in China". The Guardian. Retrieved 2014-01-09.
- ^ http://phys.org/news/2015-04-panasonic-spherical-air-blower.html