F.B.D.I.S.S.M - Flux.Boosted.Dual.Induction.Split.Spiral.Motor.

[Honk]

>The Wankel is almost entirely dependent on the magnetic twist. It cannot be
forced to deliver more output by adding more current to the electro magnets. The Wankel is engineered to a specific output, so to speak.<
Please correct me if this misses the point:

What happens when a load is applied?
My guess is that the rotor will slow down relative to the load applied until the attraction of rotor, stator and
electro magnetic forces cannot overcome the load anymore. Then the rotor stalls.
When the load is removed or lightened sufficiently, the rotor will accelerate again unless the rotor has stalled
in the sticky position and the electro magnets are not able to supply enough attractive force for a restart.
So the no load operation should also show the highest rpm.
Will the pulse speed and supplied current have to be adapted relative the speed of the rotor, e.g lower speed
requiring more current for the electro magnets and adjusted timing for the field reversal?
Cheers

I dont know for sure how much the load will reduce the speed. The only reference I've got is the statements from Paul.
His first Emilie motor was spinning at 190 RPM at no load, but at 6W load it was decreased to 90 RPM.

His new motor is spinning at 496 RPM at 11544W load (according to Sprain himself).
I don't know what the RPM will be at no load, perhaps twice as high, when comparing numbers to his old motor.

My idea of attracting then repelling the rotor magnets will perhaps let me start the motor without any interacting push.
I just know that the twisting torque can be calculated, and I got it to be approx 57 ft-lbs. And the highest useable RPM at that
torque will give the most horsepower output. I guess I'll have to wait until it's built and tested before I can answer your question any better.

[gaby de wilde]

The more the electro magnets, the more it's starts to look like an ordinary pulse motor.

The big difference would be that this design is not decelerating between it's pulse coils. That would make quite a big difference I think.

Here are my thoughts on that.

http://forum.go-here.nl/viewtopic.php?t=107
View topic - constant velocity increase

Your solution is much better as my idea of adding large numbers of pulse coils. (as shown in the big pulse motor)

http://magnetmotor.go-here.nl/video?v=ArX7BDY1XRM

[Honk]

The big difference would be that this design is not decelerating between it's pulse coils. That would make quite a big difference I think.

Which motor do you mean? Mine or yours?

I believe strongly mine will accelerate between the electro magnets.
Once past the electro magnet the rotor magnets is attracted towards the most narrow gap area and
it will accelerate to get there because the flux and rotational twist increases along the ride.

According to my calculations the twist increases from 27lb at the loop entry to 168 lb at the loop exit.
That is quite a difference in force that will perform a powerful accelerating twist.

[Honk]

>2) I guess you haven't heard of overlapping magnetic fields. They will let the rotor pass without loosing momentum by the sticky spot.<

Could someone please explain the workings of those overlapping fields?
@ Honk
Is it correct that the magnets in the stator are stacked side by side N/S/N/S etc., standing up 80mm high?
You did say the magnets are magnetized through their width, didn

An overlapping field is simply when the force of a sticky spot is moved by applying a electromagnetic field of the same strength next
to the permanent field. And when reversing the electromagnetic field the backpull to the old sticky spot is neutralized.

The fast flipping of the flux field will give the rotor magnet an almost free ride past the sticky point without loosing to much momentum.
Acctually the fields doesn't need to flip, it's enough to let the rotor pass into the electro magnet area by sheer momentum
and then apply a reversed electro magnetic field to neutralize the effect of the sticky spot.
But I don't believe this way is the most optimal. The loss of momentum will be a lot smaller when using an attract/repel field.

Yes, the magnets are stacked side by side N/S to N/S, standing up 80mm high and magnetized through their width.
If they weren't magnetized through their width there would be no great attraction between the rotor and stator magnets.

[ecc]

The overlapping field is simply put the neutralizing of the sticky spot by applying a reversed field of the same strength.

The fast flipping of the flux field will give the rotor magnet a free pass from the sticky point without loosing any momentum at all.
Actually the fields doesn't need to flip, it's enough to let the rotor pass into the electro magnet area by sheer momentum
and then apply a reversed electro magnetic field to neutralize the effect of the sticky spot.
But I don't believe this way is the most optimal. The loss of momentum will be a lot smaller when using an attract/repel field.

Stefan quotes Paul S. somewhere in the Steorn thread saying that because Steorn used repulsion in their model it would lead to a degaussing of the magnets and that his motor is running on attraction only. If it is indeed the case that the magnets can be demagnetized by applying repulsive magnetic forces, then  repulsing  the rotor away might demagnetize it and nearby stator magnets and lead to a loss of torque or function. That could be an important point to consider.

@Gaby
Also I wonder if the Lee Tseung lead out theory might offer insights into the function of the split spiral motor on perhaps how and when the the electromagnetic force could be applied in the cycle. As the coils are expected to be really fast perhaps a double or more pulses can help to overcome the sticky point, hopefully in attraction mode only and/or by leading out more energy?

Cheers