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Everyone is familiar with the images of traditional fans. Large petal-shaped blades spin around a central axis powered by an electric motor. All of this contained inside of a cage or grill for safety’s sake. The basic design has almost never changed. However, now it has. Now there is a bladeless fan available.

Even when active, there are no visible moving parts on the bladeless fan. It looks, quite simply, like a hollow ring on top of a cylinder. When you turn it on, air suddenly pours out of the empty center of the ring. Many have wondered exactly how this bladeless fan works.

It should be noted that the fan is not actually bladeless in the literal sense of the word. There are blades, many of them, in the cylindrical base. These blades face all different directions and spin quickly. This draws air up into the hollow ring. The air travels up the sides of the ring and fills it. The ring itself is shaped like the wing of an airplane with a small gap in the back to let the air out.

The air that is pushed up into the ring from the blades in the base fills the ring and is pushed out and forward across the wing shaped interior. This creates a differential in air pressure that draws air into the ring from behind.

In this way, the small amount of air that the actual fan blades are moving into the ring is actually being multiplied. This is a highly efficient method of moving air. An added benefit is that the air does not move in choppy waves like a traditional fan creates. Instead, the flow is constant and consistent.

There are many benefits to using a bladeless fan design such as this, not the least of which is the energy efficiency that is achieved by multiplying the amount of air moved out of the ring.

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Q: How To Understand A Bladeless Fan?
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