I'm building a prototype magnetic reduction box (10:1) with a friend at work.
He's building a small turbine based on an automotive turbocharger with an external combustor, and looking at how to take power off a shaft spinning at 100,000 rpm.
If the prototype works we'll try for 20:1 with a designed power of 1 kW.
Theoretically it should have similar losses to a transformer: hysteresis in the cores.
It's just a hobby project, but we should learn something.
Here's our inspiration:
http://www.magnomatics.com/pages/media/pdd-gear-video.htm
http://www.magnomatics.com/pages/technology/low-ratio-magnetic-gears.htm
He's building a small turbine based on an automotive turbocharger with an external combustor, and looking at how to take power off a shaft spinning at 100,000 rpm.
If the prototype works we'll try for 20:1 with a designed power of 1 kW.
Theoretically it should have similar losses to a transformer: hysteresis in the cores.
It's just a hobby project, but we should learn something.
Here's our inspiration:
http://www.magnomatics.com/pages/media/pdd-gear-video.htm
http://www.magnomatics.com/pages/technology/low-ratio-magnetic-gears.htm