FDM - flux displacer motor by Igor Knitel (Perihelion Labs)

[lumen]

Broli,

Once you said "generator" I was thinking that the shaded pole rotor I posted back a few posts may work very well as a generator.
If you think about the ring magnet spinning on it's axis with the two plates attached, it would be drag free even with the stator pole nearby.
Those colored links on the picture would be windings and the more load that is applied the more it would reduce the drag on the rotor until it spins by itself.
It would be like an inverted lenz affect where the back emf to the flow direction of the field would accelerate the rotor.
Is it possible to build the inverse of an electric motor where it runs not by putting power in but by taking power out?
So the line of thinking goes anyway.

[broli]

The potential ideas for these type of concepts are limitless, below is another variant, it basically comes down to one question; what's the most budget friendly design to build a prototype out of, preferably using off the shelf parts.

[wizkycho]

well
... some simpler setup using same principles should be made and experiment on.

Using coils at start for input is somewhat ineficient (Ohmic resistance loss), allso using
coils for output inevitably induces Lentz back emf that opposes inital changes in field parameters even if
it is a field of permanent magnets

(see MEG setups and experiments - it is very "streched" FE and highly sensitive
not to drop under 100% efficiency).
Some MEG-like experiments even go to COP 2.3 - might work in certain conditions.

Using Permanent Magnets in mechanicall (output is lentzless, input constructed to be in constant equilibrium)
might produce better results.

wiz

[broli]

, allso using
coils for output inevitably induces Lentz back emf that opposes inital changes in field parameters even if
it is a field of permanent magnets

Simulations and certain experiments show otherwise, irregardless of how the coils are energized they have little to no effect on the magnets. It's always important to have a continuous solid layer of ferromagnetic material between the coils and magnets, this probably sounds like a vague statement but that's what I've discovered.

[lumen]

wizkycho:

In the shaded pole rotor, (a variation of your design), operation depends on Lenz law providing back EMF to increase the rotation.

The idea is that as the magnetic flux changes direction to pass through the coils, the loaded coils generate back EMF to reduce or delay the field so there is less attraction to the iron stator on exit as there was on entering.

Operates on the same principal as a shaded pole motor.
The fact that electrical current is produced in the coils only at the point of the stator exit indicates a lesser pull on exit because of lenz's law. The force cannot be translated back to the rotor except to increase rotation.