You guys seen this yet?

So I have a pulse motor that does 30k rpm aim going to try one of these up coils on it.

I have seen my motor speed up when applying a load to to a pick up coil but based on what I was seeing I put it down to the lenz effect masking the Iron core from the mag.

Their site  is generator-motor.info

Well isn't that interesting.  I had seem something similar with a full toroid, but not a half toroid.  This is quit different.

intetesting,if prime mover doesn't slow down when the load connect.that must be great.

The only semi-circle core I have is half a yoke. I tried on my motor but the results were rubbish. I'll have to work out a better shaped core

Quote from Jimboot on March 7th, 2014, 05:43 PM

The only semi-circle core I have is half a yoke. I tried on my motor but the results were rubbish. I'll have to work out a better shaped core

I have never tried this, only speculated...  Can a toroid core be sliced in half with a diamond tipped masonry blade?  You know the type you cut bricks and tile with?

I'm really afraid to try such a feat on a brand new $150 power toroid.

I pulled apart a 240vAC to 12VDC lighting transformer hoping it was ferrite but is a lamination. I'm concerned if I try to cut it will react like it was a coiled spring :)

Quote from Jimboot on March 8th, 2014, 05:49 PM

I pulled apart a 240vAC to 12VDC lighting transformer hoping it was ferrite but is a lamination. I'm concerned if I try to cut it will react like it was a coiled spring :)

It will if you subject it to any heat, plus that will ruin it magnetically.  I would clamp the laminations real tight and just slow and gently hacksaw it with a fine tooth blade.  I'm told even that kind of minimal tooling will mess with the magnetic structure, but I have no idea to what degree.

If I only had a waterjet CNC cutter.  Maybe some day...

Well that didn't work. Cut the ring. Started with a hacksaw quickly moved to the angle grinder. Despite your advice got it nice and hot. Wound a she dload of wire on it, doesn't generate anything off my pulse motor

I emailed this one to Thane Heins, seems right up his alley.

Having a closer look at his numbers I think he is observing a similar effect to what I saw here. https://www.youtube.com/watch?v=ASbXw3RkAHA#ws I think it is simply the flux from the gen coil masking the core which speeds up the revs