Tinman's Rotary Transformer

[tim123]

... So Tinman please post a shematic to let me go inside your project  ...

Hi Woopy
  What do you need to know? Perhaps I can help?

Looks like you have a nice little motor for testing...

Regards
Tim

[tinman]

OK,about the PM's in the stator core. Im not sure why you would want PM's ,insted of a self induced EM ,with wich we have controll over.One of the main ideas behind this machine, is to use it as a transformer,as well as a motor. PM's we cannot switch off,or collect any power from.Using EM's,we can create a strong repelling field,and that field only become's stronger,the more load we place on the output. This also increases the torque on the motor,while reducing the P/in.

Tim-If you think it would work,then give it a shot,and i will keep with the original design,so as others can see the effect.There is a small hickup coming,when we try to use the second stator coil,the same way we use the first-but we'll leave that until we get there. But looking at the stator coil core shape,it will become apparent what is happening,and why.

Now about the windings on the rotor. Although they are all joined like Tim said,the current will only power up two rotor segments at a time-like Mags said.This is because there is less resistance in these two segment's,and current follows the path of least resistance. So although they are all joined,only the two lowest resistance coils will use the current. These will be the two between the two stator coil core's-so the rotor field is pushed away from one stator core,and attracted to the other.

Oh and Tim- a big yes on the rotor being pushed away from the stator core's,not attracted too.
Also try the rectified AC or pulsed DC,as i sugested,and see the difference than that of DC current.

Now the rough schematic below shows the very simple diode and resistor conection.If the motor bogs down when the resistor is placed in series with the diode and coil,simply turn the diode around,so as you allow the current to flow in the opposite direction.Try one coil first,and then see what happens when you try and use both coil's ay once.

[tim123]

OK,about the PM's in the stator core. Im not sure why you would want PM's ,insted of a self induced EM...

No mate, not in the stator... The rotor. If you can polarise the rotor using PMs - then you don't have to provide the electricity...

If the principle that the RT demonstrates can work with PMs - then it's definitely OU - no question - no measurements needed. No power input.

There is a small hickup coming,when we try to use the second stator coil,the same way we use the first-but we'll leave that until we get there. But looking at the stator coil core shape,it will become apparent what is happening,and why.

I *had to* connect both stators in series to see the effect in my motor. I think it's because completing the magnetic circuit is necessary. I don't think including the other coil should be a problem, but I could be wrong... My motor isn't behaving quite like yours, and I don't know why yet.

Now about the windings on the rotor. Although they are all joined like Tim said,the current will only power up two rotor segments at a time-like Mags said.This is because there is less resistance in these two segment's,and current follows the path of least resistance. So although they are all joined,only the two lowest resistance coils will use the current. These will be the two between the two stator coil core's-so the rotor field is pushed away from one stator core,and attracted to the other.

There are only 2 brushes. They split the coil into two, so the current has to travel the full length of the wire...(?)

[tim123]

Attached are some diagrams, hopefully explaining the PM idea a bit better.

I'm not trying to take us off topic here. The point of this is to explore the principle of operation of the RT, and see how else it can be applied, and optimised.

If I'm right, this should be a self-rotating generator...

Top Pic - 'Dimensions':
- Shows the relative dimensions of the stator to rotor segments.
- Rotor segments are separated by an equal size gap
- 3 rotor segments must be in contact with the stator at any one time
- so the stator must be 6 units wide

Middle: 'Operation'
- Shows how the polarity of the rotor segs changes as they move past the stator
- ...and how that looks to the stator
- ...and that taking power off the stator will help turn the rotor.

Bottom: 'Side View'
- Shows how these things are arranged.
- Magnets below the rotor
- Stator above the rotor
- This is just a schematic, and it could be arranged radially or axially.

[gotoluc]

I agree with TinMan!...  I also fail to see how his design would work with permanent magnets.

Even if the magnets are on the rotor! 

The way I think TinMan's design works is it takes advantage of the off time of the rotor coil which would of induced a magnetic field in the stator core when on.
But once the rotor coil comes to a zero volt from the pulsed DC, the induced field in the stator will want to collapse and reverse which would cause a braking effect on the rotor. However, since TinMan has made as large of a coil he can fit on the stator, the stator magnetic field can be stored in that coil.
However, it will do nothing if the coil is open! ... but add a diode (in the right direction) on the stator coil and instead of the stator core field reversing when the rotor coil field comes to zero (from DC pulses) the diode will redirect the stored magnetic field in the stator coil to go in the same direction it was originally going and the result will be the rotor will continue on its way instead of it being stalled by the reversing collapsing field.

So maybe we can say there is No opposing Lenz if you want. It's just redirected and reused during the off time.

If this is TinMan's working principal, then permanent magnets on the rotor would not work as they can't be switched on and off.

I shared this concept (in a different way) 4 years ago. I called it "Effects of Recirculating BEMF to coil" where I demonstrated that a short pulse to a coil would push a magnet so far and if I added a diode (in the correct direction) the coil would need much less power to push the magnet the same distance.

Here's a video of the effect and advantage of recirculating a coils collapsing field: http://www.youtube.com/watch?v=7QUYkilgkzU

What I think TinMan is doing is using the same effect but using the stator flux stored in the stator coil and redirecting it which will have a benefit on the already set motion of the rotor. This is very smart of TimMan to do.
One can add a load (resistor) on the stator coil but for obvious reasons the best results will be with the lowest resistance or just a short.

Luc