Homopolar Generators (N-Machine) by Bruce de Palma

[CompuTutor]

Now if we can get one conducting plate to be in a situation
that the current flows outward,
and another that flows inward,
we can eliminate the outer brushes all together.

I tried to fly that concept earlier in some thread,
possibly this one even.

There were no takers on the idea.

Even with only one disc,
if the load turned WITH the disc,
brushes would not be needed either.

I posed the concept of radial shunts
like bicycle wheel spokes in arrangement.

Make a heck of a heater,
with minimal rotational input.

But picking up off the edge
at multiple points around the edge,
and bringing it back to the shaft
opens doors to many clever ideas.

Think of how a brushless alternator works,
or your induction charged toothbrush charges.

Put that much current at low voltage
through heavy-gauge inductor windings,
your bound to wind up with something usefull..

Sadly,when we spin a magnet
the field won't spin with it though,
so that rules a few ideas out...

homopolar without centrifugal current,
flowing inward instead you postulate,
hmmm ... interesting observation ...

To many people disagree on what "Current" is,
yet nature stares us in the face with it daily...

I like your idea though

Then again,
the physical manifestation of outer to inner current
might be best visualized as a cone instead of a disc.

http://books.google.com/books?id=QkuzsHT_U7sC&pg=PA357&lpg=PA357&dq=centrifugal.current&source=bl&ots=AIi2AcbKo-&sig=SQqx4miaFrndV76v0O1UBoplH9k&hl=en&ei=COOjTIrGE8T7lweKysG_DA&sa=X&oi=book_result&ct=result&resnum=3&ved=0CBoQ6AEwAg#v=onepage&q=centrifugal.current&f=false

(PDF)
http://caps.space.swri.edu/caps/publications/Hill06.pdf

http://www.springerlink.com/content/j741823t5466p8j3/

http://medical-dictionary.thefreedictionary.com/centrifugal+current

[Magluvin]

Thanks for the insight Comp

This is what I was wondering, if you spin the single plate/mag sandwich in one direction, will the current change direction, from out to in if we spin it the other way?  Like left hand rule.    Im just wondering if it is possible, as most may assume that the currents will always just flow outward, because that is all we have ever seen. Not many if any try to replicate this project.   But if it were to be, then going down the line with many discs in series, there would still only be just 2 brushes, one at each end, and on a much smaller circumference commutator for each.  Every other disc would have current goin inward and the others going outward, and if all is spinning at the same time then all the connections between plates in series could be solidified as part of the whole.

I like the idea of the load strapped to it.  But as you said, coils could be mounted to the outside to transfer power to pickup coils.   Very good idea also.

I have seen what tesla presented as a spiralized disc.  I wonder if it could be a pancake coil?


Hmmm  just came to me,  if my idea is correct and we can have currents flow inward, we could just wrap a big toroid mag with heavy wire and spin the mag with the wire as a whole. As the wire on one side of the mag gets north field and the other gets south.  hmmm,  And the end leads could be terminated on commutators at the shaft. And lets say that both sides of the mag need to be north outward to cause the inward and outward flow, who would ever think to do that? um   I just did.  ;]

Man thats just crazy.  but if she works, it solves a lot of the hard work that the original way needs.

Mags

[gravityblock]

Was just thinking about it, do the homo polar motors only cause electron flow outward from the center?
My point is, that is the way I have always seen it described. But if you spin it the other way, will current flow from the outer to the center?
Like left hand rule.  Now if we can get one conducting plate to be in a situation that the current flows outward, and another that flows inward, we can eliminate the outer brushes all together. Then make a big magnet and plate club sandwich that has the appropriate plates connected physically on the outside and inside in series. Then just have brush commutators on the shaft at each end.

Mags

Yes, the current can flow in both directions.  It will either flow from the axis to rim (centrifugal current) or flow from rim to the axis (centripetal current).  Changing the direction of rotation will change the direction of the current.  Likewise, changing the direction of the magnetic field or poles, will also cause a change in the current direction.  Be careful with this idea though, because both the north and south pole of a single magnet (N/S) will generate a current of like polarity.  This is why you need to use multiple magnets with opposing poles (disc/N/S /S/N/disc) or have separate shafts.

You are 100% correct in being able to eliminate the brushes at the rim and extract the current on the shaft at each end with the correct configuration.

Watch this video courtesy of Lumen, http://www.youtube.com/watch?v=XSWwrvT_c8w

GB

[Magluvin]

Thanks GB

That is the first I have seen of the currents flowing inward.  Very nice.

So   if we have 2 speaker mags, force them together with like poles facing out and wrap that as a toroid winding, we can mount the gidget on a free spinning shaft that holds commutators for the ends of the windings to go to, and we should get more voltage with the more windings.  Of course the wire should be thick for current handling.
Seems like the way to go for this device.

So the magnet is just a lens of sorts that brings field lines in high concentration to the spinning plate/disc/conductor, and as the conductor moves withing those lines of force that are apparently stationary, per say, within the "vacuum" but the magnet just concentrates them in the area of the spinning disc.
   

Thanks  there GB   Good show by lumen also

Mags

[Hypercom]

Hi

Remove the brush devices in a system of multiple disks and use only the axis of rotation, it would be a great innovation ...
If someone managed to solve the problem please post a diagram of principle to discuss with all the researchers ...

Homopolar Experiment. In this video you see a ammeter used as a tester, a voltmeter is actually Vdc 60ma. full scale (without SCHUNT ammeter). The magnetic configuration is neodymium NS><SN.
The rotation of the trunk of copper tube is made with a mini drill.

Hypercom.

http://www.youtube.com/watch?v=9u1IZStSkHk