Muller Dynamo

[plengo]

@CLaNZer. The drive motor works by attraction not repulsion .

I understood it was by repulsion. If the rotor is north, for example, and the biasing magnet is also north, so north against north with the coil in between, the only way that the rotor magnet can pass by is by the coil counter act the biasing north so that there will be an attraction of the rotor magnet to the coils core. Than let the coil off which should bring the biasing north repulse the rotor.

Fausto.

[CLaNZeR]

I understood it was by repulsion. If the rotor is north, for example, and the biasing magnet is also north, so north against north with the coil in between, the only way that the rotor magnet can pass by is by the coil counter act the biasing north so that there will be an attraction of the rotor magnet to the coils core. Than let the coil off which should bring the biasing north repulse the rotor.

Fausto.

Hi Fausto

Easy enough to try both configurations and see what gives best results.

Just one thing to remember for driving coils is to make sure when we wire top and bottom coils in series to swap the wire taps around so we get the opposite polarity from top coils to bottom coils.

If in attraction top coils need to be wired to give a South pole and bottom to give a North.
If in repulsion top coils need to be wired to give a North Pole and bottom to give a South.

Have to think on the biasing magnets..

[i_ron]

OK -- I appreciate the responses, and the fact that Romero provided detail on how to build.  I wish Romero well also! 

@Ron, would like to follow-up on this:
Another hoax, Joe A. did a good expose on this showing wires going to wrong pins on devices etc...  The window motor is very close to 1:1, so not much potential there unless you are a TB fan.

Ron

Which one was the hoax? - the one by 'Mike' or the one by 'Rod' ?   (And no, I didn't go back and read the whole thread regarding Mike's device.)

Be serious, Rod is a serious experimenter, read his Adam's work for example.

Mike was a flash in the pan, from out of nowhere. A guy named Joe had a Yahoo group called "Scam or no Scam", long since gone, so just going on memory what discrepancies he posted that he found.

Not too many OU running Mike's window motors running today, running a 5 watt bulb... should answer your questions

Ron

[nul-points]

I understood it was by repulsion. If the rotor is north, for example, and the biasing magnet is also north, so north against north with the coil in between, the only way that the rotor magnet can pass by is by the coil counter act the biasing north so that there will be an attraction of the rotor magnet to the coils core. Than let the coil off which should bring the biasing north repulse the rotor.

Fausto.

i believe neptune is correct

iirc Romero said that he added the stator magnets later, to assist in anti-cogging of his already built rotor + stator system

his description of the stator/rotor system is that it works in attraction mode

ie. if the rotor mags are N up, then the top stator coil is driven S down
(and the inverse for the lower side ofc)

hth
np


http://docsfreelunch.blogspot.com

[yssuraxu_697]

The 2 driving coils  works best in attraction (as per Romero ) and also per my own testing.

And that's why:

If...
Magnet flux only = 1x force
Coil flux only = 1x force
Then...
Magnet flux + Coil flux = 4x force (2x amplification)

You don't get that in repulsion.

Actually if one thinks about that long enough then it's quite an achievement for mankind do NOT to have COP>1 PM motors in general use