Muller Dynamo

[scratchrobot]

Guys,

Now we have seen the effect, who wants to help this dummy (me), understand how to employ this
in the Muller design.

Please


Penno

Can you help me understand how you got the effect? Do I understand correctly that you wound an extra coil on your generator coil while you are shortening the original coil with a reed switch?
Maybe you can draw how you are doing it?

Regards,
scratchrobot

[conradelektro]

A few results with the contraption shown in my last post:

(Just one pair of coils, one coil is the trigger coil and the other one is "driven"; DC resistance of both coils is 265 Ohm)

7 V , 3 mA --> 21 mW --> 300 rpm

10 V, 5 mA --> 50 mW --> 500 rpm

17 V, 10 mA --> 170 mW --> 800 rpm

The current draw was measured over a 1 Ohm shunt resistor (and represents average current draw, current is drawn in pulses rather than continuously).

My point is the rather low power consumption with this type of drive circuit and the high resistance coils (265 Ohm DC-resistance, many windings). It dose not seem to matter very much, that only one coil (of the pair) is "driven" while the other acts as a trigger coil. The gap between the coils and the magnet can be rather wide (reduces cogging).

I always wonder why the "pulse motor inventors" (Muller, Konzen, Adams, Bedini) use coils with rather few windings (low DC-resistance). Higher voltages (with coils having a lot of windings) would cause strange effects much easier than lower voltages (according to my naive layman opinion).

Greetings, Conrad

[yssuraxu_697]

At this moment I have done only calculatons on the full generator part, so all stator coils being a generator, just to understand the generator part first.

Interesting. Couple of more questions. Does the effect kick in only in full system?
If not what is the minimum setup effect could be seen in? There are lots of people trying to build "proof of concept" with just couple of mags and stator coils.
And efficency fall when tuning away from sweet spot. Is it exponential? Meaning +-0.5mm and no effect at all, or for example 10% degradation... 90% degradation... ?

And most important. Do you have explanation of the physics of the "effect"? Why it works? What processes take place in what relation to each other?

[Tudi]

@romeroUK: Once i read your dream is to take such device back to your country and spread it. I share the dream and the difference is that i did not sign any papers to MIB. If you ever consider trying to avoid the paper you signed, feel free to contact me to be your right hand in anything( i have the financial situation to not think about money gain + been threaten by MIB a lot of times ( papers never have enough * parts to be able to cover a next step escape ) ). In our country everything is possible

[teslaalset]

Interesting. Couple of more questions. Does the effect kick in only in full system?
If not what is the minimum setup effect could be seen in? There are lots of people trying to build "proof of concept" with just couple of mags and stator coils.
And efficency fall when tuning away from sweet spot. Is it exponential? Meaning +-0.5mm and no effect at all, or for example 10% degradation... 90% degradation... ?

And most important. Do you have explanation of the physics of the "effect"? Why it works? What processes take place in what relation to each other?

Haha, now you're overloading me
I am at the verge of doing the sims on bias tuning on the full rig model. So, allow some time for results.
I probably need to organize a separte discussion thread here at OU, as not everyone will appreaciate my simulation efforts in this thread.

I'll try to post some findings on the bias tolerances, I did some sims on that. I'll post them this evening (I am in EU time zone), since I have no access to my results right now.

Regarding explanation, yes, sims show the cause. It's mainly due to the delay in BEMF response.
So, it's not black magic, all explainable physics.