Homopolar Generators (N-Machine) by Bruce de Palma

[Hypercom]

Hi

Resonant unipolar generator

Abstract of  US 7459823  (B1)

An AC unipolar generator provides high power at high frequencies without requiring a source of high-frequency mechanical power. A rotor having a plurality of spaced magnetic disks and two sets of rotating capacitor plates is coupled to a source of mechanical power, the two sets of rotating capacitor plates being spaced apart along the outside of the rotor and electrically connected via a conducting channel. A stator surrounding a portion of the rotor that includes the magnetic disks and one of the two sets of rotating capacitor plates includes a magnetic stator core that forms a magnetic circuit with the magnetic disks of the rotor, a stator field coil, and a fixed set of capacitor plates that capacitively couple the stator field coil to the rotor conducting channel through one of the sets of rotating capacitor plates. A second fixed set of capacitor plates located outside of the stator capacitively couples the rotor conducting channel back to the stator field coil through the other set of rotating capacitor plates. The stator field coil and the two sets of capacitor plates form a resonant LC circuit that characterizes the AC frequency of the power generated by the generator.

http://v3.espacenet.com/publicationDetails/originalDocument?CC=US&NR=7459823B1&KC=B1&FT=D&date=20081202&DB=EPODOC&locale=en_EP

[angryScientist]

Magluvin,
I'm sorry to say I haven't tried it yet. I don't have a mechanical shop and I've been focused on electronics lately.

The connection the edges of the plates was a concern to me also. Your correct that the magnetic field would be much stronger there do to the opposing S poles. The fields would be compressed into a small space then would have to exit where the connection of the two plates are made.

If the connection where continuous, as like a solid sleeve or pipe, then there might be a problem with current being directed in a way that would not be beneficial. It could go sideways which could increase the resistance or, worst case, create energy wasting eddies.

The solution would be to simply segment the connection. If bolts are used, as in the drawing your referring to, then those would be the segmented connections. I believe that would prevent any problems of the current going sideways in the connection between the two disks.

It might be helpful if the bolts where non-magnetic so as to prevent any unevenness in the magnetic field. Then again, that could increase the cost of device without much benefit to efficiency. I'm sure some kind of improvement could be made in the design.

[Magluvin]

Hey Angs

Maybe use choke inductors that physically reach from 1 plate to the other, toroids, as from steorn experiments, the induction from the motion there could be minimal.  I thought a lot of diodes, but the voltage would suffer severely with the diode drop.

Just thinkin  =]

Mags

[angryScientist]

Mags,
I'm not sure I your reasoning. I don't believe anything other than a simple conductor would be necessary.

[Magluvin]

Hey Angs

I dont know if you had read it above. I had the idea that if you put 2 lets say speaker magnets N poles facing or S, squeeze them together then wind them with heavy wire like a toroid. Naturally an axle and bearing would have to be made to accommodate the structure for rotation. Then the ends of the wire can be attached to your end of shaft commutators, and produce what ever voltage you want depending on the no. of turns. 

But as the wire, or any conductors are introduced to the opposite poles at the outer and inner rim may counteract what we want to do. As that potion is spinning also.  I dont know yet, havnt tried.  You did prove that you have had this idea for some time before I thought of it, and in many ways. Very good work.  =] 

Mags