Zen Generator - A No Back Torque Electromagnetic Generator

[Low-Q]

That was heavy... Could you maybe make a few turns of wire to that toroid, and spin a magnet inside to see what happens when the coil is loaded?

Br.

Vidar

[hartiberlin]

Regarding the calculations done when the coil was loaded, I measured first the voltage with a known resistive load. The calculation concluded that the flux density around the coil was reduced when the coil was loaded. As the voltage did drop much more than the wire resistance should promise, when the coil was loaded, the flux density must then increase on the other half of the toroid. This will in turn virtually make a higher impedance in the generator, as the fact is that less flux is running through the coil when it's loaded - hence the dramatic voltage drop. I will apply pictures when I get home, but here is a drawing of the setup.

Hi Low-Q,
nice setup,
but maybe the voltage dropped much more, cause you did not put the
magnet rotor directly into the toroid and thus too much
airgap was present !
This airgap can then press out the magnet flux into other directions,
so it would be good, if you could try again by putting the magnets directly into the
toroid hole and see what happens then, when you load the coil.
Many thanks in advance.

What material does your toroid have ?
Is it pure iron or laminated iron bands stacked ?
Does it have much eddy currents ?

Regards, Stefan.

P.S: Also it could be good to place an iron core between the2 rotating magnets,
so the flux is concentrated to the toroid side at each magnet end, so the flux
inside the 2 magnets does not have such a big airgap...

[FredWalter]

Here is how I made that core. It is build from a burned out 15orso kw motor. I cut the core in half, and removed the fingers from the laminates then re-insulated the laminates and put the thing back together.

How did you remove the fingers from the laminates?

[tao]

Yes, you need to use one continuous magnet, and it need to be IN the hole area of the core, EXACTLY like it is pictured in my first post on this thread.

Regarding the calculations done when the coil was loaded, I measured first the voltage with a known resistive load. The calculation concluded that the flux density around the coil was reduced when the coil was loaded. As the voltage did drop much more than the wire resistance should promise, when the coil was loaded, the flux density must then increase on the other half of the toroid. This will in turn virtually make a higher impedance in the generator, as the fact is that less flux is running through the coil when it's loaded - hence the dramatic voltage drop. I will apply pictures when I get home, but here is a drawing of the setup.

Hi Low-Q,
nice setup,
but maybe the voltage dropped much more, cause you did not put the
magnet rotor directly into the toroid and thus too much
airgap was present !
This airgap can then press out the magnet flux into other directions,
so it would be good, if you could try again by putting the magnets directly into the
toroid hole and see what happens then, when you load the coil.
Many thanks in advance.

What material does your toroid have ?
Is it pure iron or laminated iron bands stacked ?
Does it have much eddy currents ?

Regards, Stefan.

P.S: Also it could be good to place an iron core between the2 rotating magnets,
so the flux is concentrated to the toroid side at each magnet end, so the flux
inside the 2 magnets does not have such a big airgap...

[Nali2001]

Well I have a lathe and a milling machine so I can do anything with metal.

Here is how I made that core. It is build from a burned out 15orso kw motor. I cut the core in half, and removed the fingers from the laminates then re-insulated the laminates and put the thing back together.

How did you remove the fingers from the laminates?