Bladeless fan

A bladeless fan, also known as an Air multiplier fan, is a fan that blows air from a ring or oval opening with no external blades.[1] Its vanes are hidden in its pedestal and direct the collected airflow through a toroid, blowing a thin high-velocity smooth airflow from a continuous slot across the surface of the tube or toroid.

For the fan mechanism used in household tower-style fans that are sometimes called bladeless, see Fan (machine) § Cross-flow.
The Dyson Air Multiplier at the IFA Berlin trade show in 2010

The concept was created by Toshiba in 1981 and was later popularized by industrial designer James Dyson, who used the technique in a consumer fan introduced in 2009, calling it the Air Multiplier.[2][3] It was included in Time's 50 Best Inventions of 2009 list.[4] The principle has been in use for a long time as an ejector or injector.

History

The first concept was created by Toshiba in 1981.[5]

References
  1. https://www.fastcompany.com/1401835/dyson-air-multiplier-doesnt-suck-it-blows
  2. "Air Multiplier bladeless fan | ventilating device | Britannica". www.britannica.com.
  3. "Dyson invents fan that has no blades". The Independent. October 12, 2009.
  4. "The 50 Best Inventions of 2009 - TIME". Time. November 12, 2009 – via content.time.com.
  5. Wallop, Harry (20 October 2009). "Dyson fan: was it invented 30 years ago?". The Telegraph. Retrieved 2014-01-09.

See also
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