Werjefelt's Magnetic Battery

[DreamThinkBuild]

Hi All,

This is an attempt at replicating, Bertil Werjefelt's, magnetic battery.

http://www.rexresearch.com/werjefelt/werjefelt.htm
Fig: 8

The idea is pretty simple. Cogging and Lenz are attraction events. The rotor gets pulled in by the core and CEMF setup in the coil. Werjefelt had the idea if cogging was an attraction event why not try to equalize it with repulsion event. If you can equalize the events then your motor would be running like it has a minimal load, supposedly.

One challenge with this design is that the repulsion must be adjusted for each load. You need a way to place a load on the coils then move the repulsing magnets into position to equalize. I came up with a movable repulsor plate for that.

Results: This first version failed due to weak magnets; N35. I want to raise the voltage higher than the 200mv being put out now per coil so I can put a heavy load on them.

Only the rotor and repulsor need to be reprinted for the next version to fit the stronger N52 magnets.

[markdansie]

thanks for the information this is a really interesting project
Kind Regards
mark

[conradelektro]

Hi All,

This is an attempt at replicating, Bertil Werjefelt's, magnetic battery.

@DreamThinkBuild:

Do I understand this correctly?

The motor driving your replication is an ordinary DC-motor. The rest is in essence a generator?

The DC motor drives the disk with the four magnets which pass the four "generator coils". The load is connected to the "generator coils"?

The static disk with the four magnets (which can be adjusted up and down) is supposed to reduce the Lenz effect?

What do you hope to achieve? More output from the "generator coils" than is needed to drive the DC-motor? Or just a more efficient generator?

I guess you are replicating Fig. 8 from WO9414237 ?http://worldwide.espacenet.com/publicationDetails/originalDocument?CC=WO&NR=9414237A1&KC=A1&FT=D&ND=3&date=19940623&DB=EPODOC&locale=en_EP

By the way, the patent has never been granted in any country:
http://worldwide.espacenet.com/publicationDetails/inpadoc?CC=WO&NR=9414237A1&KC=A1&FT=D&ND=3&date=19940623&DB=EPODOC&locale=en_EP

It is a nice build! This is not criticism, just an attempt to understand.

Greetings, Conrad

[tinman]

Hi DreamThinkBuild
Im afraid that the result will be the same as if your static magnetic disc isnt there at all. The reason is that the repulsion will be the same in both direction's-both on aproach and on leaving. So the net result is zero. I do believe that PM's can be made to provide a rotational force,but as of yet,it hasnt been done. But it's only a matter of time befor it happens-just like the heavier than air machines that would never fly.

[gyulasun]

Hi DreamThinkBuild,

Thanks for "tinkering" with this setup, very nice build. Some of the reasons for the low 200 mV induced output voltage may include indeed the relatively weak magnets but I believe it is also the air gap being large between the coil tops and the rotor magnets. I understand that severe mechanical problems are to be solved in fixing the coils firmly when you were to attempt to reduce air gap.

My other 'issue' would be the bolts in the coils, eddy current losses in them may dissipate too much useful output, unfortunately. Somehow the mechanical fixing for the coils should be solved in a different way to get rid of those bolts and use either ferrite cores or welding rods or many isolated iron wire pieces (garden wires).

Greetings
Gyula