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Vertical Axis Disk Wind Turbine

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Uploaded by on Feb 26, 2007

How the turbine works: Rotatable shutters mounted on a circular disk automatically open when directed into the wind, irregardless of the wind's direction. Pairs of upper and lower shutters are geared together. The lower shutter acts as a counterweight to the upper shutter. The bottom shutter opens in the downward direction and its weight helps to lift the upper shutter in the upward direction, as the wind applies an opening force against both shutters. When the shutters reach the vertical position, stops prevent them from opening further and the force of the wind is transferred from the open shutters to the circular disk. And the circular disk is attached to the vertical axis for power output. The circular disk, shutters, and outer vertical axis rotate together. The outer vertical axis is mounted via bearings over an inner vertical axis that is stationery.

The shutters are blown closed by the wind (no stops in the opposite direction) as they reverse direction during their rotation and move into the wind on the opposite side of the wind turbine. When the wind is not blowing, the shutters open by gravity because the lower shutter is weighted to be slightly heavier than the upper shutter and it therefore can cause the upper shutter to open via the force of gravity as the two shutters are geared together. Wind blows against the open shutters and the open shutters with stops apply a force against the disk, but the open shutters with no stops (opposite side going into the wind) merely close due to the force of the wind (not applying a force against the disk) and the wind turbine begins spinning no matter what direction the wind comes from. Operation of the turbine is remarkably quiet as compared to the appearance of the video due to biasing members that absorb the shock of the opening and closing and provide useful energy output.

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Science & Technology

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Uploader Comments (otivaeey)

  • What im curious to know is how the bottom "blade" is shutting back? I can see the top one goinh back down due to gravity but the bottom one? Is the wind pushing it back up? If so thats taking a lot of pressure to keep it up and your not really being more efficient. but if it comes back up by other means other than the wind then i could see how this would work very well, either way it is spinning and that fact alone says that its atleast working.

  • @snooter28 The bottom flap is latched together with the upper flap, but the bottom flap is slightly heavier, to pull open the bottom flap (and also the upper flap).

  • IMO, lifting/shutting those flap will cost more energy than gained though such a design.

    Have you done the maths on this one?

  • @RobOnDrugs opening/closing is important for maximum wind push and minimum wind drag. As long as the material used for the flaps are light and non-malleable compared to the surface area of the flaps, then the flaps can be sizeable. The goal is to use flaps that can open/close as fast as possible to maximise wind energy transfer.

  • run that in a week and it will fall apart, lots of moving spaces

  • @alexaquino47 what about engines running 5000 miles is equivalent to this runnning for millenia. You even never see engines leaking hot gases when they run. There are something called strength of material and stuffs like bearing and lubricant.

Top Comments

  • How about using a large version of this completely immersed in slow moving water? You wouldn't need to build a dam and this design seems more suited to slower speeds. I would imagine this would generate a lot of torque at the shaft, which would work well with a geared generator instead of needing the turbine to spin at higher rpm.

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All Comments (191)

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  • You know?

    If you gave the lower vain A slightly greater mass and the top a tenssioner spring?

    You could very nearly eliminate the matter of Lost force and Expended energy.

  • @MucusFelidae - A lift device is a turbine whose blades spin because of lift forces and a drag device is a turbine whose blades spin because of drag forces. Darrieus rotors and standard windmills are lift devices. Savonius rotors and cup anemometres are drag devices.

  • @raoulduke25 drag device..lift device..

    What is a lift device? Am not familiar with terminology.

  • the open and shut is making a friction that dampens the speed of the rotation.

  • w w w diymagneticmotor com for FREE energy, anyone has tried it?

  • Have you compared the performance of your device with any other vertical axis wind turbine? It's an interesting invention, but in my opinion it has too many moving parts...

  • гениально

  • Hmmm. Interesting and weird all at once. LOL

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