At the risk of offending both ewhel and
donaldbaer please remember that this dialectic or collision
of ideas reveals advantages of both motors. Both
ewhel and donaldbaer are correct. The insufficient
words used to describe complex devices cannot convey
adequately the advantages that both ewel and donaldbaer are
really referring to. Some of us, your audience, need to
see diagrams (can either of you provide these?)
<br><br>I surmise that donaldbaer's totally enclosed motor
is not completely sealed/pressurized but that it is
vastly superior to regular motors that flow vast
quantities of air over the armature or windings for cooling,
and that it could be sealed up. I am particularly
interested in doing this with submerged motors in my
"electric log" boats, or by adding fins that contact the
outer surface of the boat hull for cooling. At the same
time, ewel's motor seems to be rather efficient and to
require less cooling, as well as less moving parts for at
least some function(s).<br><br>The market that we are
watching develop is (will be) very complex and fractured.
It is easy to believe that both motors are
absolutely perfect in different areas of that market.
