I have been studying for a while the concept of canceling self-induction in electromagnets. This, in my oppinion, is the Holy Grail of highly energy efficient machines. The idea is to make an electromagnet be part of a LC circuit. At resonance XL (inductive reactance) and XC (capacitive reactance) are equal and opposite, so they "cancel" each other out, making the overall impedance the pure ohmic resistance of the conductor itself. This would increase the overall efficiency of the electromagnet assembly (be it in a motor or elsewhere). If you want to read more about this, patent US 512'340 is all about that (you have it attached) and also "The Inventions, Researches, and Writings of Nikola Tesla", "On electrical resonance" section of the book.
I have tryed using all kind of motor electromagnets and capacitor combinations but I can't seem to attain the desired effect (canceling of self induction). There is allways higher than ohmic resistance impedance in the circuits. It is important to mention that I have used coil+capacitor assemblies with the coils having inductance of at least 50mH (Examples: 350W Three phase induction motor coils, 100W Monophase induction motor coils, relay coils, etc). I say this because Nikola Tesla in US 512'340 made the capacitor, part of the coil itself, thru a very interesting winding of it. I haven't tryed that aproach, yet. That should hold some promise.
Anyway I write this because I have hit a wall and I hope that toghether we can pass thru it.
Regards,
Vasile
P.S.: Fighter, is there a day/night luminosity mode on this site? The white text on dark background is hitting my eyes hard. Thank you.