Magnet Motor from Argentina, part2

[DarkLight]

The principle of Torbay motor is the same as that of asynchron electro motor. There is a rotating stator magnetic field (here achieved by moving the stator magnets up and down while the rotor is turning)  and rotor that follows this rotating stator field. The construction has great torque (about 7 Nm with bar rotor magnet and half of stator magnets moved up) , but it has very low turning speed because of moving stator magnets up and down. Let the motor turns with 600  rpm only. This is low speed. Even lower than that of typical electro motor (1500 to 3000 rpm). But even with that low rpm we have to move up and down each of stator magnets  10 times per second!
To do that we must move stator magnets with very big acceleration, because we have to put them up and then down in a 1/20 of a second!
That requires great force. 
What is the net power of a motor with torque  M = 7 Nm   that turns with    n = 600 rpm

N = F*V = M * w = M*2*PI*n/60

N = 7*2*3.14*600/60 = 439.8 W

Even with that great torque of 7 Nm  motor will have low power because of  it's low rpm.
And what about amortisation of elevation ramps for stator magnets, and for other  elements  that have to move at 30 , 40 mm  in less than 1/20 of a second?

[lancaIV]

Very well thought,Darklight !

Why do the Lutec-company-members need so much time(6 years+X),
for a "only" 1KW-plant ?
Please remark also the material input !

Sincerely
            de Lanca

   

[rotorhead]

DarkLight,

439 Watts would power my laptop, coffepot, and several fluorescent lamps. I don't need much more to make me happy.

[ewitte]

400-600RPM with a 36" or so rotor with more magents would put out a LOT more power   Just use it on a charge controller for a battery bank and run everything off of an inverter also connected to the battery bank.  Someone get something out I can easily understand and I'll look into building something with my 24 1.5"x1"x0.25" N48 magnets. 

[madmaxx]

One of the problems with this design is that the stator magnets will still find rest at mid point of the rise. Like was stated above it's easy to raise them, but how do you put them back down? If this motor does indeed rotate as RPM increases the stator will float at mid point and you will loose torque. If more force is needed to put the stator back in position for next revolution I'm afraid our end result might be Zero work.

It's worth a try. I'll build one too for fun. I was trying something simular with hinges, but it found rest. Perhaps springs or small magnets could speed the rise and fall of the stator. Or maybe another cam that forces it back down. You could create another level and stack the machine so that the upper level pushed the stator back in place.