Magnet motor in Argentina

[orionjf]

Dear friends,
Congratulations for everybody!!! I think it is a great work and it?s very nice to share it.
I?d a lot of simulations and I?m filling a document with results (my problem is time )
I agree with harti and Tao results at a first view with some additional (and important, I think) remarks:
1.- Force (and torque) changes with relative position between rotor-stator-gap. There is a period shape with peaks and valleys force.
2.- Maybe, the force (and the torque, and, more important, the energy) is greater with separated magnets in stator because the space (and the time) with "peaks" field is greater and the integral (work) is greater. That means you have less field (with separated magnets) but you have more time (space) that it is useful. I guest there will be a optimal distance but there are a lot variables that affects it. I expect to get data to confirm this (it is only a "theory" based on no systematic simulations)
3.- There is an optimal point to hold down the stator magnet just in a valley force instant. At this time, there is a peak of kinetic energy in the rotor that is used to hold down without a strong resistance. Think in a pendulus: peak of gravity potential energy mgh can be equivalent to peak of magnetic force and the peak of kinetic energy (1/2mv2) is quivalent to the same in the rotor.
Another "warning" is about materials. Conductors (aluminium, for instance) will have strong currents when the rotor (a magnet) moves. Remember Harti animated draw in S.Mark issue. There is a very simple and illustrative experiment: the Lenz pipeline; drop a small magnet (cylinder) inside a cupper pipeline(no magnetic material) (1m long for instance) holding vertical. The magnet is braked (even stops in some instants). (Magnet diameter must be closely to pipeline diameter). So conductors could brake the rotor ... from my point of view.
I expect the above remarks can help a little bit ...
Regards.

[Omnibus]

tao, that?s awesome. Thanks a lot for the pics. I would be beside myself even if I see the rotor making full turns at 10 rpms. Just seeing such rotor turn goes against everything the world has been told regarding these machines.

Your solution with springs seems simpler but I agree with Stefan that there may be a problem with the lifting design of the motor cap.  Probably it should be smoothed out at the two ends. Also, shouldn?t the lifting be more sudden than the descending (although such asymmetry may cause problems at high rpm)?

The rectangular shape of the stator magnets being better than having concave face is puzzling me too.

[2tiger]

Hello all
The last day I?ve been reading this tread about the Torbay Motor, trying to understand its function.
What I see is different to that what you are talking about.
Please tell me if I?m wrong and excuse my bad englisch.

I found that the best and most interesting picture of the motor is that with the wooden prototype. There you can see the rotor-arm. Regarding the shadow of it, it seems to be a half-circle. So I don?t think that the rotor is lifting one (one of seven!) magnet-arm at a time. The rotor lifts tree or four magnet arms at a time.
In both cases there is a desequilibrium because there are tree magnets (down) and four magnets up and vice versa.

Then I read you talking about the sticky point. Long time ago I try to design my own magnet-motor. When you have a magnet on the rotor north-sided to the stator and on the stator you four magnets (12, 3, 6, 9 o?clock)  north sided to the rotor, you will notice that between every magnet on the stator there are sticky points.
I think that the Torbay motor has the same `problem?.

And now let me think about the ring magnet in the rotor. You wrote that it is south-north trough the diameter. So the only way there can be a torque is when the north-half of the ringmagnet ist facing to the magnets-arm that are down, so that repulsion can create a torque.
But the south-half of ringmagnet is facing to the upper magnetsarm that where lifted by the created torque by repulsion. Here you have an atraction, south of the ringmagnet to the lifted northpoles of the lifted arms.
So you need to produce enough torque to lift up tree magnets-arms that are cought by the atraction of the ringmagnet.

See U

[silverdragonrs]

tao i believe that is the most understandable.... acurate description of this motors functions to date. if you are currect in that the south end will seek the midpoint then i agree with the use of a disk magnet polarised as you say. I don't know figures and terms but i do know mechanics and 3 demensional behavior in machinery. I believe that the first prototype should include the disk magnet.

omnibus, tao, hartiberlin - you all seem to have a grasp on magnetics... could you give me a simple explenation as to the differance between concave and square north ends on the stator magnets in this case. please.

danny

[tjanzer]

Tao,

The graphics are great! I would like to mention something about the springs. I think the springs should be used to help bring the stator magnet back in line with the rest. I think there will be more resistance in lowering it back into place than lifting it. You will probably have help in lifting it by the repulsive force. The design I am working on is upside down from yours, where the stator magnets are lowered out of the way instead of lifted. It will be easier for the introduction of springs. I am also looking into putting a track for the stator magnets to ride in. This way, they will be directed in both up and down directions.

TJ