What art of a fan pushes the air?

Answer 1

well, the fan motor is doing the actual work, so technically it's the motor that's pushing the air... or more accurately, the motor causes the blades to rotate, which in turn pushes air forwards due to the tilt of the blades and the air foil that forms as a result.

Answer 2

You can call it many things. Propeller, Impeller, Blade, or uncommonly- the "wings" of the fan.
Specifically, it's not just the blade.There are many different parts of the blade that make it a good air mover. The sharper, thinner part of the blade is what actually moves most of the air. This is the edge you would feel from the backside of the blade. This part is usually called the leading edge. The second part is the concave surface of the blade itself. This part is crucial, as it determines where exactly the air will go. If this surface is flat, or worse, convex,
you may have a problem on your hands.
In reality, there are two important parts that must work together to give one end result- a lot of moving air.

The exact science of aerodynamics is not a simple one. Manufacturers have made hundreds, if not thousands of attempts at making what they call an "efficient" fan blade.
These are just a few examples of the two basic types - high pressure "square" blades and low pressure "round" blades:
http://www.emotorstore.com/product.asp_Q_catID_E_13_A_subCatID_E_318_A_Fan_Blades_Sub_E_Fan_Blades_Sub

Answer 3

Hi. Kind of a trick question. The fan blade does not actually touch the moving air, which is why dust can settle on the blade's surface. The motion of the blade both pulls and pushes the air a slight distance from it, causing a pressure difference. This is what actually makes the air move.

Answer 4

Aw c'mon. The fan blades?

Answer 5

It's called the blade. As in "fan blade".

Answer 6

Don't you mean "What fart of the pan blow's the air? Its the fan blade's.

Answer 7

the shape of the blades and the speed of the motor which turns the blade.