About Window Motor and Keppe Motor

[Arthurs]

Hello everyone:
Window Motor with Keppe Motor structure is very similar to
Recently have been produced Keppe Motor fan commercial products,
Very much like to know:
Bedini Window Motor and Keppe Motor torque greater Which? Which higher efficiency?
Why Window Motor no commercial products appear?

Keppe Motor
https://www.youtube.com/watch?v=ETmF-Hiz_MI

SALUDOS

[aguy]

[wrtner]

An interesting PDF here from PES:

http://www.pure-energy.info/wp-conte..._principle.pdf

[wrtner]

An interesting PDF here from PES:

http://www.pure-energy.info/wp-conte..._principle.pdf

Does anyone know why the manual above specifies a ferrite magnet (as opposed to a neo) as the principle magnet for the motor? (They suggest a small neo as the trigger magnet). Aguy's post above has an Italian image which proposes a neo.

Of course, it may be to save money, an argument which doesn't work if one happens to have a suitable neo in stock.
.