What is the Most Efficient Motor?

[chessnyt]

Hello Cameron,

Technically, there is a motor that is at least 100% efficient and maybe even higher. 

The motor is brushless and is comprised of a permanent magnet rotor and a stator that contains at least two solid core windings (coils).  The motor is self powering thus it doesn’t need a power supply of any kind.  It may be able to perform work if its bearings are modified by means of a frictionless bearing(s) such as a magnetically suspended type of bearing.

I’ll give the link below so you can see one in action:

http://www.youtube.com/watch?v=oB1gslDaeS4

I hope this helps,

Chess Knight

[sushimoto]

I have been talking to a gentleman that spoke to John Coe at the U.S department of energy. (this is all he said she said) but he told me that the most efficient motor that is used today can only get 31-33 % efficiency, and that is at near absolute zero. Please help me understand this, if it is true, and what it means.

Hi,
I do believe, that he has ment common 4-stroke combustion engines.
But my rough calculation ist less than 31%.
Only 1 Stroke is converting the stored energy in gasoline to work.
Means 1 1/2  revolutions of the crancshaft of
the energy stored by the flywheel
is taken, just to make te motor spin 2 revolutions (for 4 strokes).
That makes 25% efficency. (Roughly calculated, not every stroke takes the same energy off the flywheel)

And a lot of the fossil energy is going into production of wasted heat and friction,
which deducts from the efficency calculation as well.
No matter how perfect you burn the gas in a 4-stroke Otto-motor,
with sophisticated injection-systems and turbos.
Its horrible principle stays since rockefeller took control.
Even a steam.engine is more efficient.

2-stroke and diesels are a bit better, but not more than 35%.

You always drain at least 65% of your fuel to the toilet.
...Same with HHO in regular cars BTW.

Maybe somebody understands what i mean and can explain that better,
since english is not my native tongue.

best,
sushi

[fritznien]

actually marine diesels run close to 50 percent. google it.

[TechStuf]

I hear that this little dynamo is pretty darned efficient:


http://www.youtube.com/watch?v=EhRwe7ucfFs

http://www.youtube.com/watch?v=hoa-KmVu-Kg


God bless,


TS

[Honk]

I have been talking to a gentleman that spoke to John Coe at the U.S department of energy (this is all he said, she said)
but he told me that the most efficient motor that is used today can only get 31-33 % efficiency, and that is at near absolute zero.
Please help me understand this, if it is true, and what it means.

This lady was refering to gasoline combustion motors. As mentioned in a post earlier.
He should have asked her about the best High End electrical motors but I don't think "she" cares about this knowledge.
It's not her profession to know all technological details on the lastest developments unless being fanatic in these matters.

Here is a 98% efficient halbach array & ironless axial flux solar car motor.
http://www.csiro.au/resources/pf11g.html
http://www.csiro.au/files/CSIROau/Software/SolarCar.zip

Please see the zipped attachment on close motor development and details.