Beginner's Guide To How Vacuum Works

Even though it may appear to be a verymove will rub against any loose dust or debris and
complicated machine, the conventional vacuumif it is light enough, the friction will carry the
cleaner is actually made up of six essentialmaterial around the inside of the vacuum cleaner.
components: intake port, exhaust port, electricAs the dirt continues on to the exhaust port, it
motor, fan, porous bag, and a housing that storeswill pass through the cleaner bag. They tiny holes
all of the other components.in the vacuum cleaner bag are large enough to let
When you plug the vacuum cleaner into the outletthe air pass through, although too small for the
and turn it on, the following happens:dust particles to fit through. Therefore, when the
1. First of all, the electric current will operate theair current gets into the bag, the dirt and debris
motor, which is attached to the fan, whichwill be collected there.
resembles an airplane propeller.You can stick the bag anywhere along the path
2. As the blades begin to turn, they will force thebetween the intake tube and the exhaust port,
air upwards, towards the exhaust port.just as long as the air current passes through.  
3. When the air particles are driven forwards, theSuction
density of the particles will increase in front of theThe power of a vacuum cleaner's suction will
fan and therefore decrease behind it.depend on several factors. The suction can be
The pressure drop that occurs behind the fan isstronger or weaker depending on:
similar to the pressure drop when you take a1. Fan power - In order to generate a strong
drink through a straw. The pressure level in thesuction, the motor needs to turn at a good speed.
area that is behind the fan will drop below the 
pressure level that is outside of the vacuum2. Air passageway - When a lot of debris builds up
cleaner.  in the bag, the air will face a greater level of
This will create a suction inside of the vacuumresistance on the way out. Each particle of air will
cleaner. The ambient air will push itself into themove slowly due to the increase in drag. This is
vacuum cleaner through the intake port becausethe reason why a vacuum cleaner works much
the air pressure that is inside of the vacuumbetter once you've replaced the bag than when
cleaner is much lower than the pressure on theyou have been using it for a while.
outside.3. Size of the intake port - With the speed of the
Picking the dirt upvacuum fan being constant, the amount of air
The stream of air that the vacuum generates isthat passes through the vacuum cleaner per
just like a stream of water. The air particles thatsecond is also constant.