Working Attraction Magnet Motor on Youtube!?

[hartiberlin]

Hi Sean,
I don?t understand your CAD drawings.

Where do you want to mount your magnets to these wheels ?


The objective is to have no iron get closer to the magnets,
but have different thickness of iron in front of each magnet, so
one screw row pulls the other screw row forward.


I just had an idea, just first to do it in a linearfashion,
so tape for instance on a big platsic ruller 4 rows of iron
pieces, that are flat but look like a triangular and see, if you can
accelerate the ruler linearly into one direction by bringing the
4 stator magnets near it.
Then we can first optimize the shape of the needed iron
parts and then later put it onto a bigger diameter circle wheel.

I guees, the bigger the diameter ofthe wheel is, the better it will work.

It just reminds me a lot of the experiments Dave Squire had done
a few years back with the MFT ( magnetic flux turbine) on
the yahoogroups ou-builders list.

I will upload the files from there into a more easily accessable directory
over here at overunity.com now.

Regards, Stefan.

[hartiberlin]

Okay, here are now the MFT files.

http://overunity.com/mft/

Study them all in very much detail !

Especially these 3 files are very important and I think Dave Squires
is one of the original pioneers who brought the easy overunity magnet flux switching
into this world.



The trick is to have an iron ring around the pole of a magnet so the flux
can be shorted out via this iron core ring back into the stator itsself,
when the rotor iron parts moves along.
This way you can achieve much easier leaving of the rotor part
and the flux is much more easily switched to the next incoming
rotor part and then this part is rather atttracted.


Here you can see, how the 2 piece-rotor part (red line encased) looks very simular to the screw:





And here is a measurement chart from FEMM simulation to show the
forces over a complete cycle. You see that the force is much bigger
in the positive direction than the negative, so it does not cancel out,
but works as a permanent magnet motor.




So now back to this screw motor,
it would be very benificial, if you replication guys could
put 4 small iron core rings around the 4 stator magnets.
This way the flux is much more easily switched from one screw
to the next one.

Hope this helps.

Regards, Stefan.

[hartiberlin]

Study this GIF animation in slow motion
and you will see, how an iron ring around the
stator magnets will improve the flux switching
from one rotor piece to the next one coming into the
flux gate tunel.






Okay, with the screw motor we have no closed magnet pathes,
but with FEMM it is much easier to simulate these closed magnet pathes
and to make the screw motor more powerful , you could also built it by using
permanent magnet flux gates
like in this animation, so these would need to
go inside the ring and outside the ring, so the screws would be entering a real flux gate
like shown in the animation.
So you would also use the back poles of the 4 stator magnets
to attract the screws from the inside of the rotor plastic ring,
not just from the outside !

[hydrocontrol]

it would be very benificial, if you replication guys could
put 4 small iron core rings around the 4 stator magnets.
This way the flux is much more easily switched from one screw
to the next one.

That is exactly why I brought up the possibility in another post that the bracket was a magnetic material like iron instead of aluminum.
An iron or soft steel bracket should produce close to the same effect.
You would not even need iron core rings for the entire magnet.
Just another piece of flat steel across the front side of the magnets
(not the poles but opposite the bracket) should work.

Tom

[hartiberlin]

You are absolutely right Tom !