AlanW said:
Yes, but a Dyson isn't a "vacuum" cleaner its an air mover.
- Dirty air is drawn by a fan.
- This air goes into the top corner of a drum or bin. The angle at which the air enters causes it to spiral round the drum. This creates centrifugal forces that cause the larger dust particles to spin out of the air stream and fall to the bottom of the bin.
- The air then flows through a filter, which catches more dust particles.
- It then flows into a conical cylinder, which is housed within the bin. The angle at which the air enters and the sloping walls of the cylinder combine to cause the air, containing the smallest dust particles, to spin down to the bottom of the cone at an increasing speed.
- Centrifugal forces acting on the air stream increase, forcing the dust particles against the sides of the cone and through the hole in the bottom of the cone, while the air escapes up the centre.
6 - The fast moving air carries most of the dust with it, which is distributed around efficiently and re-settles on everything.
7 - The householder sees the bits of heavy fluff caught in the transparent container and thinks: "Coo, that's impressive! I feel good about my Dyson."
8 - Meanwhile dust is slowly penetrating the motor bearings wearing them out.
9 - The householder, struggling to carry the overweight assembly of plastic components up the stairs, drops it and breaks off a part.
10 - The machine is thus rendered useless so is taken to a repair man where it sits with about 20 other Dysons, unwanted in a crowd by the door, getting in everybody's way.
11 - The repair man announces that the motor is goosed as well and it's going to cost a small fortune to repair.
12 - The householder, frustrated, buys a Henry for £85.00 and rediscovers the joy of a well-designed, functional vacuum cleaner, which sucks like a... like a....
deleted and can manage builder's mess, plaster dust, sawdust, you name it and keep coming back for more.
13 - The home becomes clean again and all the householder is happy at last.
