Mahle's magnet-less electrical motor

[cyrano]

The new Mahle design uses no magnets, instead using powered coils in its rotor. Unlike previous efforts, it transfers power to the spinning rotor using contactless induction – so there are basically no wear surfaces. This should make it extremely durable – not that electric motors have a reputation for needing much maintenance.

https://newatlas.com/automotive/mahle-magnet-free-electric-traction-motor/

 

[PermO]

Interesting.

I once experimented with creating a rotating magnetic field, but all it did was flip the polarity of my compas,.. or the Earth magnetic field, I'm not shure.