Dyson Bladeless Fan - How it Works

When we first heard that Sir James Dyson was releasing a new innovative product and that it was a fan without blades we were very intrigued to see how this could work, so we had to find out the science behind this new technology so here goes.

Here is a simple diagram to help us better understand how the bladeless fan actually works, we will refer back to the diagram as we explain the process.

A. 27 litres of air per second is sucked in through the small vents in the base of the fan by a 40 watt electric motor, which is at the lower end of the average wattage used in conventional fans.

B. The air is propelled through a motor

C. And out of a 3mm slit in the frame at a speed of 55mph.

D. The air then passes over an airfoil-shaped ramp directing it outwards.

E. This is the really important point because as the air is pushed outwards, surrounding air is drawn into the airflow, which increases the original volume of air 15 times and because there are no blades chopping the air the entirety of it is propelled out evenly rather than getting irregular blasts to your face as with a conventional bladed fan.

I think you will agree that the technology used in the bladeless fan is genius and it does offer better results than a bladed fan, it is also important to note that there are two versions of the bladeless fan in the forms of the Dyson 10 inch Air Multiplier and the Dyson 12 inch Air Multiplier but as for the technology of the fans they both work in exactly the same way.