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  2. Harley-Davidson Evolution engine - Wikipedia

    en.wikipedia.org/wiki/Harley-Davidson_Evolution...

    This allows each lifter and pushrod to deflect from the cam lobes perpendicular to the lobe plane. This configuration is friendly to radical, high-output cams, making the Sportster Evolution a natural choice for the once Harley-Davidson owned line of Buell Motorcycle Company sportbikes from 1986 up to late 2009 (2010 model year).

  3. Computer cooling - Wikipedia

    en.wikipedia.org/wiki/Computer_cooling

    A finned air cooled heatsink with fan clipped onto a CPU, with a smaller passive heatsink without fan in the background A 3-fan heatsink mounted on a video card to maximize cooling efficiency of the GPU and surrounding components Commodore 128DCR computer's switch-mode power supply, with a user-installed 60 mm cooling fan. Vertical aluminium ...

  4. Radial engine - Wikipedia

    en.wikipedia.org/wiki/Radial_engine

    The first radial-configuration engine known to use a twin-row design was the 160 hp Gnôme "Double Lambda" rotary engine of 1912, designed as a 14-cylinder twin-row version of the firm's 80 hp Lambda single-row seven-cylinder rotary, however reliability and cooling problems limited its success.

  5. Lift fan - Wikipedia

    en.wikipedia.org/wiki/Lift_fan

    Lift fan is an aircraft configuration in which lifting fans are located in large holes in an otherwise conventional fixed wing [1] or fuselage. It is used for V/STOL operation. The aircraft takes off using the fans to provide lift, then transitions to fixed-wing lift in forward flight.

  6. Compaq Evo - Wikipedia

    en.wikipedia.org/wiki/Compaq_Evo

    The Compaq Evo is a series of business PCs (desktop and laptop) and thin clients made by Compaq and then Hewlett-Packard following the 2002 merger. The Evo brand was introduced by Compaq in May 2001 as a business-oriented brand. It replaced the Deskpro brand of desktops and the Armada brand of notebooks. [1]

  7. Ducted fan - Wikipedia

    en.wikipedia.org/wiki/Ducted_fan

    In aeronautics, a ducted fan is a thrust-generating mechanical fan or propeller mounted within a cylindrical duct or shroud. Other terms include ducted propeller or shrouded propeller . [ 1 ] When used in vertical takeoff and landing ( VTOL ) applications it is also known as a shrouded rotor .

  8. Rolls-Royce LiftSystem - Wikipedia

    en.wikipedia.org/wiki/Rolls-Royce_LiftSystem

    the rear of the F135 engine (nozzle rotated down) that powers the Rolls-Royce LiftSystem. Instead of using separate lift engines, like the Yakovlev Yak-38, or rotating nozzles for engine bypass air, like the Harrier, the "LiftSystem" has a shaft-driven LiftFan, designed by Lockheed Martin and developed by Rolls-Royce, [3] and a thrust vectoring nozzle for the engine exhaust that provides lift ...

  9. Axial fan design - Wikipedia

    en.wikipedia.org/wiki/Axial_fan_design

    An axial fan is a type of fan that causes gas to flow through it in an axial direction, parallel to the shaft about which the blades rotate. The flow is axial at entry and exit. The fan is designed to produce a pressure difference, and hence force, to cause a flow through the fan. Factors which determine the performance of the fan include the ...