In message
<1356957719.93311.YahooMailClassic@web120101.mail.ne1.yahoo.com>, anton
harpitap <harpitap@yahoo.com> writes
>Surfing the WWW for electric motors I stumbled on this page
>
>http://www.geminielectricmotor.com/
>
>But I did not find any finished products. Is this yet another invention
>that will never make it to the marked?
There seems to be little that is innovative in this. Permanent magnet
BLDC motors of the axial flux type have used a fixed stator with
permanent magnet rotors on each side for some years. The technique is
well known to those who make home-made axial flux motors for automotive
use (and also as generators for wind turbines). A radial flux version
as shown on the web site is a trivial change. The bit about its use as
a generator is just waffle. Any BLDC motor having permanent magnet
rotors can easily be used as a multi-phase alternator, with regenerative
operation under braking (on a road vehicle) if the controller allows for
it.
What is really needed is a low-speed BLDC (or switched-reluctance)
motor, having the stator peripherally arranged around a large diameter
hollow rotor assembly, with a multi-blade impeller filling the hollow.
This would give a low-speed motor, not requiring any gearing down, which
would make an ideal thruster for electric boats.
Such items do exist, at a cost, but none seem to be in the important
2000W to 5000W range that is required for an auxiliary propulsion unit.
--
Chris Morriss
| Reply via web post | Reply to sender | Reply to group | Start a New Topic | Messages in this topic (4) |
No comments:
Post a Comment