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Overunity Machines Forum



Squared Newman motor, Can it works?

Started by Magnethos, August 09, 2008, 05:57:50 AM

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0 Members and 2 Guests are viewing this topic.

khabe

Just few words about back-iron:
When rotating back-iron then solid soft iron - there material choice is not so critical.
When stationar then or laminated (or well wound thin soft magnetic wire) or powder (SMC),
Laminated means adequate direction - when axial machine as above was then like tape wound core,
When radial machine then laminated rings ... And of course material choice. Silicon iron, or nickel iron, or cobalt-iron (this is veeeery expensive  >:(
As thinner matarial used as better ...
Rotating back iron causes less losses - not often used because mostly complacated to build.
But anyway - sometimes - like this last scheme of axial machine - it is not hard to make at all (how to fix coils? - with clamps for example ;-)
Back iron need not to be very thick - when just only 0.5mm air-gap of simple magnetic circuit then 1/2 thickness of (Neo)magnets is enough,
When added thickness of coil + aircap then back iron could be much more thinner ...
The only thing what need to be followed - mechanical strenght.  Magnets will try to bend it -  it must to be made rigid,
The same about the shafts I have seen when looked pictures on OU threads - too thin shafts mostly used.
This 8 pole axial machine I blocked out has ca 100mm OD of disc and has 12mm shaft ... This is just my own experience.
I hope my DIY English was understandable.

khabe

Hereby cutaway of  6 pole / radial air-gap / rotating back iron motor,
Actually 3-phase BLDC PM motor but it does not matter when apply reason,
Windings are epoxy impregnated - fixed to frame from one side only.
regards,
khabe

Magnethos

Quote from: khabe on August 10, 2008, 07:22:56 AM
Hereby cutaway of  6 pole / radial air-gap / rotating back iron motor,
Actually 3-phase BLDC PM motor but it does not matter when apply reason,
Windings are epoxy impregnated - fixed to frame from one side only.
regards,
khabe

But that motor runs on volts as newman motor?

onlov

Magnethos:
QuoteI met David Wells some time ago...
Do you say thet is bullshit? I have speak few about that with Mr Wel

Sounds like snakeoil. But if you are saying, David Wells make better or worse Weather, maybe it's better to believe? :-\  Woud he pop here in Finland with his weathermachine and make little bit sunshine?

I have wondered, here in Finland weather is very cold and rainy. Maybe my 'friend', mr Careica has maked this weather machine? He is still teenager and he don't know how to control this machine!
;D

onlov

Quote from: Magnethos on August 10, 2008, 07:50:33 AM
But that motor runs on volts as newman motor?

If you use lot of turns of thin copper wire, it's like voltage driving and less turns with thicker wire it's like current driving.
But all motor works with Watts. It means both voltage and current...