Permanent magnet assisted motor coil designs

[jimbo]

There's more if you need it .there's another video on a reciprocating Flynn .that shows the construction layout if you need it .

[captainpecan]

Would like to understand how you meant the process I put in bold above?  i.e.  if the magnetic poles of the electropermanent magnet (epm) appear at its top and bottom ends when you switch the coil on, say N at the top and S at the bottom, then one rotor magnet would repel one pole of the epm (say the top one) while the other rotor magnet would attract the other (i.e. the bottom) pole of the epm simultaneously.  Is this how you meant? 

I actually didn't write that very well for understanding. What I meant is that the top of the electropermanent magnet is N, and the top rotor is all N facing down towards the electropermananet magnet. The bottom side is the same just all S poles. I have enclosed the permanent magnet inside the coil with 3 mm of steel so it is just enough to cancel that pole (by giving the flux an easy path to stay inside the core) and allow a like pole magnet in the rotor to attract to the core still. So even though the rotor magnet is a like pole, it is still attracted to the electropermanent magnet core on the way in much like if there were no permanent magnet in it at all. Then when it is pulsed just like a normal electromagnet, it reacts the same except now the field of the hidden permanent magnet is released also as a bonus pushing force. An attempt at much greater force per pulse. And I am using both ends of the electropermanent magnet so the rotors not only get a pull inward from both sides, they get the push of both sides on the way away plus the extra push from the permanent magnet for the same initial energy in one pulse. That's the theory in design anyway. I've been working so much I still haven't finished making it run yet. Hopefully soon and I'll post video.

[captainpecan]

you suppose that shorting the winding around a permanent magnet will break the symmetry of the approach and removal forces of another magnet ?  After all, closing the coil leads by contacts does not require any energy consumption. Isn't it ? Perhaps there is something in this.

That's what I'm hoping for and it looks to be true so far.

[jimbo]

I may be wrong on Flynn as a motor .it says it puts out double machnical energy not 4 ,.but it puts out 4 times as much flux .so it might be better use it as a  magnet assisted transformer where the Flynn is the primary .we will see .any motor putting out twice mechanical is a really good motor .but 4 utilization is better .

[captainpecan]

@Jimbo,


Yeah, there are some good nuggets of info in those videos. Makes sense. Different than what I'm doing, yet, similar underlying concepts. It's that reverse way of thinking that is so intriguing to me.