Werjefelt's Magnetic Battery

[DreamThinkBuild]

Hi Mark,

Thanks.

Hi Conrad,

The idea is to reduce the input current to the prime mover while the coils are loaded. Whether it is efficient, I'm not sure, have to test and find out. Thanks.

Hi Tinman,

The reason is that the repulsion will be the same in both direction's-both on approach and on leaving. So the net result is zero.

It seems counter intuitive. That is the same thought I had and one reason why I attempted the build. I've done some tests with magnets where you can make a neutral plane from repelling/attracting magnets. The same thought came with this design. Could it be possible to create a neutral plane between the attraction of the coil and repulsion of the repulsor magnets.

I attached a picture of the neutral plane, this is from one of my magnet motor attempts. The magnets are all north facing around the ring with a channel in between. When a south facing magnet is placed in the channel attached to a arm it will move with very little resistance, instead of being pulled into the rings.

If you rotate the channeled magnet, keeping the axis aligned to the plane, you can create a vector where the magnet will be pulled from the inner ring but pushed from the outer ring. What is interesting is it will not move until you make a gate. Removing one inner and outer magnet will create a gate, the arm will move to gate. Put the magnets back and it becomes a static system again.

Hi Gyula,

You always learn something with tinkering, even if the device fails. The coils are actually electromagnet coils from Electronic Goldmine, they have a steel core. I have other magnets that you can just swipe by the coil and it will light up a bank of leds when rectified. I can get the air gap to about 3mm but it's still not enough with these magnets. Thanks for the suggestions.

[Pirate88179]

Nice build.  You might try just flat disk magnets with no holes in the center.  The hole in the center causes the field to be different as opposed to the field from a flat disk.  I discovered this in my own magnet experiments and research.  It seems to me that you want all the magnetism you can get and that hole is just that...a place without any.

Bill

[gyulasun]

Hi DreamThinkBuild,

Sorry for saying there have been bolts in your coils as cores but for a dynamic field change such rotary setups have, the steel core may still develop eddy current losses, for they are designed for much less frequent on-off operation. And also their copper losses may also be high for generating power but I fully understand they are good for the principle test, optimization should come only later if it proves to be worth doing.

Thanks for showing your other magnet motor attempt, very interesting. What if you use the Werjefelt principle on that setup? i.e. you remove as you say one magnet from both the outer and inner circles, you will have a stopping sticky point at that 'gate' for the South magnet moving in the channel, this sticky point is attractive and you would compensate this single point on the other end of the center shaft (away from all the magnets in the circles) with two facing repel magnets: one fixed to the shaft and the other one to a non-moving holder, both positioned such that they would repel each other at just the sticky point in the channel.  I know that a varying load force to the shaft would imply repositioning the distance between the repel magnets when they are just facing, but the principle could also be tested.

Greetings, Gyula

[DreamThinkBuild]

Hi Bill,

I got some N52 cylinder magnets but haven't rebuilt the design yet for them. Thanks.

Hi Gyula,

The round track shows the conservative nature of magnets, nothing will move unless there is a gate or you put in an external input.

I really like your idea for using the gate of the magnet motor for the repulsion event. The MMD track style layout would probably work better as it does shoot the magnet out, but the stress eventually kills the track. Thanks for the suggestion.