Brand New “Bladeless” Fan!
Dyson Air Multiplier fan
Scientific inventions have no bounds. Here is the Dyson Air Multiplier fan – from James Dyson, a British Inventor, who gave us bag-less vacuum cleaner and then the towel-less hand dryer. This time with a table fan model, with no rotating blade at all and by the look of it one can not but wonder – an object straight from a sci-fi movie!
This scientist says that conventional table fans have gone unchanged for the last 125 years, albeit some minor changes in the shapes, weights, looks etc., but not without blades. What happens is the blades “chop” the air in rotation and we get an uneven flow of air and unpleasant buffeting often times.
So Dyson and his team of fluid dynamics engineers enlarged the spark they got from their earlier invention – Dyson Airblade commercial hand dryer. They were encouraged by its performance, using sheets of clean air travelling at a speed of 400 mph and drying hands faster.
Thus the air-multiplier technology was born, out of 4 years’ hard work. They refined to perfection the new machine’s circular aperture, together with the airfoil-shaped ramp.
In simple language, the new bladeless- fan works this way – it draws air into the base of the apparatus; the air is forced up into the loop amplifier; there is a 1.3 mm aperture to accelerate the air through; it creates a jet of air, which hugs the airfoil-shaped ramp. Thus the air from the front and sideways of the fan are pushed into an air stream, that blows amplified into 15 times powerful than a conventional fan with blades. This results in a continuous, uninterrupted, even flow of cool breezing air.
The best part is – the speed of the air can be adjusted with a dimmer switch. This novel fan has been released for sale in US and Australia – a 10-inch model fan would cost $300 and a 12-inch model at $330.
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