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[Ufopolitics]

Where I am going towards in my next rotor configuration...related to Magnetic Circuit:

I realized that when we wind one of these Lap winding Motor Armatures, our Field rotation looses the "power" required as when we do spin the whole steel rotor and coils.
So, trying to visualize what is going on within the steel core...I can see that the Field does rotates (seen with Mag View Film), however, by not moving the steel mass, the field propagates "randomly" along the steel core, without the precise angular motion, like it takes place whenever we rotate the whole thing.

And this is a conclusion I came up with, a few years ago...and as a matter of fact, my isolated elements have been cut from 3 armatures stack up vertically since then...but I never got to finish that project until now, when I decided to make these tests with better results, after seeing DZ Gen from Cotnoir.

So, here I am showing my next Static Rotor configuration...and like I mentioned on my Thread, I will be making different rotor types...starting by the "A Shaped drum", mounted on bearings, which eventually be a dual cooling fan "motor"...after everytthing renders positive results.

Point is, that each steel "tooth element" is completely isolated magnetically from each others, (the ring could be aluminum or fiberglass, since the later would also be an electric insulator for the coils conductors) so the steel rotor drum would be in charge to close the magnetic circuit between each group of elements across 180º and at every fraction of rotational angle.

This way the Field would be able to actually "jump" from element to element, just like a geared mechanism...where the center rotor would be steping and closing the magnetic circuit at every angle of rotation.

I may add a couple of small neo's at each center of the rotor face, one North, other South...just to keep even more precise movement with the Virtual Field rotation.

Regards to all

Ufopolitics

EDIT 1: And let me say this...I am still not happy with this rotor design based on only 16 coils...it is still a Low Resolution Field, which displacement is still at a huge angle...(22.5º)...However, it is better than previous one I had, which was at 45º (8 Pair of Coils).
IMHO, these fields resolution should be around 10º or even less (Cotnoir mentioned that as well)...and -for sure- it will reflect an increase on your Output total power, more consistent, stronger.
However, for me to change that into a 36 tooth, it will involve to change commutator and brushes setup at rotary switch, plus stator and rotor core...so, I am not planning on changing or replacing what I have so far...which -I believe- would be able to demonstrate what I am looking for.

[bistander]

Hi Ufo,
Glad you posted those graphics over here. I seem to get deleted on the other thread. A couple of comments intended to help.

You don't magnetically isolate the steel tooth, only provide various air gaps to control reluctance of flux pathways.

The shape of the innermost spinning rotor appears "2-pole", yet the lap winding looks to be 4-pole. So won't the rotor center itself midway between adjacent N & S poles instead of opposite located N & S poles as shown?
bi

[Ufopolitics]

Hi Ufo,
Glad you posted those graphics over here. I seem to get deleted on the other thread. A couple of comments intended to help.

You don't magnetically isolate the steel tooth, only provide various air gaps to control reluctance of flux pathways.

The shape of the innermost spinning rotor appears "2-pole", yet the lap winding looks to be 4-pole. So won't the rotor center itself midway between adjacent N & S poles instead of opposite located N & S poles as shown?
bi

Hello Bistander,

Yes, Ok, exactly like you have said..."to control the Flux pathways"...thanks, I understand that I am setting an air gap between them, however, when magnetic circuit is closed by rotor, it will comprehend more stronger (related to flux strength/flow) the tooth which are closer gap to rotor drum face...is what I believe...am I wrong?

You or Solar Lab could put that design in FEMM and see what I mean.

Yes, first graph is wrong related to number of tooth...it is supposed to reach 6 tooth, like shown on second image.
Remember the field according to brushes angle I have, have two positions for the -/+ electric poles which defines the field angle, which I could narrow or set it wider, I only have two positions.

Regards

Ufopolitics

[bistander]

Hello Bistander,
...
...am I wrong?

You or Solar Lab could put that design in FEMM and see what I mean.

Yes, first graph is wrong related to number of tooth...it is supposed to reach 6 tooth, like shown on second image.
Remember the field according to brushes angle I have, have two positions for the -/+ electric poles which defines the field angle, which I could narrow or set it wider, I only have two positions.

Regards

Ufopolitics

Ufo,

I think that you understand. Not wrong.

Unfortunately I don't have the tools to do FEMM.

And I think you miss my point on poles. The winding and connection to your commutator determine the number of poles. If that is 4, as I think you show in the diagram with a 4 slot coil span, then the spinning rotor needs a 4 lobe shape, N, S, N, S.
bi

[Ufopolitics]

Here is a better view of Inner Rotor design.

I will be posting this on my Thread...
This is the Narrower Angle Field based on brushes adjustment (position 1), which comprehends around 3 commutator elements, or 3 coils on each side (pole).
In the next (position 2) it will widen the Field to about 6 elements per pole or 6 coils.
Position number 1 will be lesser coils (total of 6), so it will be a higher amp rate (less resistance)...when Position 2 (12 coils) will have lesser amperage, more resistance.
However, this settings depends on my stator coils width, and how I am wiring them...

Ufopolitics