Hilden-Brand Magnet Motor

[Honk]

Hello Jack.

Iv'e been thinking some more about the strength of magnets.
Perhaps the doubling of flux lines won't saturate the silicon steel.
Maybe the two sources of 1.45 tesla each just adds up to 1.45 tesla.

The valve of yours is doing just this. It parallels two sources of N50.
You can think of it as if you are having one N50 magnet on steel and then
you place another N50 magnet next to it.
This will double the total volume of the N50 magnets and quadruple it's lifting capacity.
But if you replace the two separate magnets with a larger single N50 magnet
of the same volume as the smallers magnets added together then you will also
get the same quadruple lifting capacity but the flux remains at 1.45 tesla.

If this is the case then the power from N50 magnets is the best choice.

If someone here could do a simulation of this in Femm it could help us
to clarify this matter.

[acp]

Hi Honk, I think with more powerful magnets you just have to have more cross section in the laminations to avoid saturation.

Regards

Albert

[Honk]

Hi Honk, I think with more powerful magnets you just have to have more cross section in the laminations to avoid saturation.

Regards
Albert

That was my second thought regarding magnet flux and steel saturation.
The flux behaves just like pressure. If you got 1.45 tesla and have to small
cross section area in the silicon steel, then the flux "pressure" increases
until the saturation limit of the steel is reached.

This means that N50 will be the best choice but the motor must be designed
to avoid saturation in the steel. A simple FEMM simulation should tell how
the motor should be designed. I'm thinking of any sharp edges and the start position
of the rotor when it's cross section area is minimal when facing the stator.

[acp]

Hi Honk, I learnt Femm in a couple of evenings, you seem like an intelligent guy, I'm sure you would pick it up in no time. Work through the tutorial though, as some of it was counterintuitive at first, at least for me. I think Femm would really help to optimise a  motor design.

Albert

[Nali2001]

You might want to see this http://www.overunity.com/index.php/topic,2222.0.html