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  2. Centrifugal fan - Wikipedia

    en.wikipedia.org/wiki/Centrifugal_fan

    A centrifugal fan is a mechanical device for moving air or other gases in a direction at an angle to the incoming fluid. Centrifugal fans often contain a ducted housing to direct outgoing air in a specific direction or across a heat sink; such a fan is also called a blower, blower fan, or squirrel-cage fan (because it looks like a hamster wheel).

  3. Fan disk - Wikipedia

    en.wikipedia.org/wiki/Fan_disk

    Fan disks must withstand the centrifugal force of the attached fan blades. Because of their size and weight, a failed fan disk can severely damage an aircraft, as happened with United Airlines Flight 232 in 1989. [4] While operating there is increased aerodynamic loading on the fan disk while the fan blade tips are traveling faster than sound. [5]

  4. Industrial fan - Wikipedia

    en.wikipedia.org/wiki/Industrial_fan

    The assembly of the hub, disk and blades is known as the fan wheel, and often includes other components with aerodynamic or structural functions. The centrifugal fan wheel is typically contained within a scroll-shaped fan housing, resembling the shell of the nautilus sea creature with a central hole. The air or gas inside the spinning fan is ...

  5. Dust collector - Wikipedia

    en.wikipedia.org/wiki/Dust_collector

    The centrifugal force imparts static pressure to the air. The diverging shape of the scroll also converts a portion of the velocity pressure into static pressure. [citation needed] There are three main types of centrifugal fans: Radial-blade fans - Radial-blade fans are used for heavy dust loads.

  6. List of Dyson products - Wikipedia

    en.wikipedia.org/wiki/List_of_Dyson_products

    The Dyson "Air Multiplier" was announced in October 2009 as an electric fan, intended to provide smoother airflow and, having no exposed rotating blades, operating in a safer manner than conventional fans. [39] [40] While it is described as a "bladeless" fan, it has blades inside its base. The fan works by drawing air in through an inlet in the ...

  7. Fan (machine) - Wikipedia

    en.wikipedia.org/wiki/Fan_(machine)

    A cross-flow fan is a centrifugal fan in which the air flows straight through the fan instead of at a right angle. The rotor of a cross-flow fan is covered to create a pressure differential. A cross-flow fan has two walls outside the impeller and a thick vortex wall inside. The radial gap decreases in the direction of the impeller rotation.

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