Uh... Um... Electricity? I don't know what exactly you're trying to find out. Is it how they create suction exactly? Cause that I know. U see, the propeller isn't like a normal airplane propeller. It's a bit different. It's actually a disc, which has some blades on it, mounted radially, but slightly bent to the exterior of the disc. When it turns, it blows air away on the outside of the disc, and creates a low pressure point in the inside, which creates the suction (air flows from higher pressured areas to the lower pressured ones - think about winds the weather) The propeller is actually part of an entire system, which is connected to the motor and is designed to create as much suction as possible by its shape.
Electricity that turns the motor that makes the vacuum suck up dirt and dust in your carpet, floors.
suction technology and vacuum parts
