The new generator no effect counter B. EMF part 2 ( Selfrunning )

[gotoluc]

Small update

MC to all

[lumen]

Luc:

It's looking good.
Initially I thought the "C" section would across the ends of the core sections but it should yield some results once you get it setup to rotate.
Your design would also let you put a keeper across the core section ends to retain the field in the core while the "C" section is rotating, possibly helping to reduce the field in the "C" section while perpendicular to the core sections. An air gap to the keepers could control the leakage.
I considered that to be the main problem with this design but it leaves open a test for that issue.

Nice.

Everyone bouncing around here seem to have no idea of what this test design is attempting to achieve.

[MileHigh]

In these builds there are always the real-world problems when working with the available materials at hand.  It's a nice build so far, but there is one limitation that I see that I see frequently when people are doing stuff like this.

In the first picture you see how the laminations on either side of the magnet are vertical.  I am assuming that the magnet is polarized "front to back."  In other words the polarization is the in the same direction as the magnet wire that forms the top of the coil.

So, the flux generated by the magnet is trying to go across laminations.  The insulating gaps between the vertical laminations are adding a lot of reluctance, preventing a "more robust" flux flow.  If the laminations met the ends of the magnet end-on then flux would flow more freely into the laminations.  However, if you did do this, then you get lousy coupling into the "C" section.   The existing configuration gives you fair coupling with the magnet and good coupling to the "C" section (assuming the "C" section and the ends of the laminations are "flat and shiny" and mate together very well.

So geometry makes this one rather difficult to build with a "robust" flux circuit that alternates as per your design goals.  Making the "C" section rotate and stay very flush with the laminations attached to the magnet will be another challenge.

I still have to say this:  All that this will accomplish is that it will "tickle" the amount of flux that passes through the coil.  The coil will then generate an AC output voltage from this "tickle."

When you strip this down to the bare essentials, one more time all that you have is a system that inputs some mechanical power to make the "C" section rotate.  That "tickles" the coil with changing flux and thus you get an AC output voltage from the coil.   If there is a load on the output coil then there will be Lenz drag on the rotating "C" section.  This is as true as day follows night.  This device will not overcome the laws of physics or give you a work-around to bypass the laws of physics.

The whole thing could just as easily be analyzed on paper or more realistically with some kind of FEM package.

MileHigh

[gotoluc]

Thanks for your reply and the additional idea of a keeper lumen.

If the first tests prove to work well I can also add another C core on the other side.
If I did that, do you think each C core should rotate together or each on the opposite cores or 90 degrees from each other?

Luc

[lumen]

In the first picture you see how the laminations on either side of the magnet are vertical.  I am assuming that the magnet is polarized "front to back."  In other words the polarization is the in the same direction as the magnet wire that forms the top of the coil.

MileHigh

MileHigh:

Not sure what direction you were trying to explain here.
The magnet is "N" facing into one coil core and "S" facing into the other coil core.

I would believe the flux flow would be better if the laminations were into the magnet poles also if that's what you were trying to say, but with the "C" core rotating across the top of the coil cores and not the ends, it is likely the better choice since the field at the magnet is mostly stationary when compared to the rotating "C" section.

The flux should connect better from the coil cores to the "C" section the way it is now.