see pg2 fig.3 +4
"B. Dual-rotor, Toroidally-wound, Slotted, AFPM Machines The dual rotor axial flux surface mounted PM machine structure is illustrated in Fig. 3 and the flux distribution is depicted in Fig. 4. The two disc shaped rotors carrying axially magnetized magnets mounted on the inner surfaces of the rotors are assembled on both sides of the stator structure with toroidal or gramme type windings. Similar to toroidally wound RFPM machine, the North-North (NN) type magnet arrangement required by the toroidal windings is used in this" "windpower" at least its not crack![ Parent ]
Not a trivial undertaking, especially compared to a coil winder as used by most here.
I cannot help but see this .PDF as anything more than another academic tossing theory at a "problem" that does not actually exist. Yet another example of what I tend to think of as "over thinking the plumbing".
Looks pretty involved to gain "something". Someone[s] suggested this long long ago but it never got built that I recall so, perhaps, there are some non trivial "gotchas" to do it. Maybe in a factory manufacturing process it could be useful but so many miss the fact that construction techniques for industry do not cross over to the DIY garage builders this site is focused on.
Anyway, good luck and keep us posted when [not if] you build it.
Tom
"Education consists mainly of what we have unlearned."--Mark Twain[ Parent ]
