F.B.D.I.S.S.M - Flux.Boosted.Dual.Induction.Split.Spiral.Motor.

[Honk]

I haven't really thought about Paul Sprain stealing my idea. I don't believe he can do that because of this openly ongoing discussion.
If he want's to use this feature in his machine then it's OK for me as long as he doesn't prohibit me in my FBDISSM goals.

But you can't really use this feature unless you have access to the controller I have designed.
A heavy duty high inductance coil is just to slow to efficiently shift field polarity inside a fast magnetic wankel motor.
As soon as the rotor is attracted into place the field must flip instantaneously to brake the back pull from the stator magnets.
But it takes time to flip field using an ordinary controller. It could easily take as long as 5 to 10ms and then it's to late.
My controller will flip the field within 200uS, perhaps faster.

[Honk]

Hi all of you guys following this thread.

Here's a picture on the simple setup I have used to see how much power is required to weaken the sticky spot.
Tomorrow I will use a fish scale to measure the forces needed to pull the lever with and without the solenoid activated.

Btw, I made a small mistake when reporting earlier. It was not 180W going into the coil. It is 140W.
Considering I'll use 600W pulses in the motor I really look forward to see how this will affect the sticky spot.
I have calculated very roughly that 600W is capable of creating a surface flux field of 2700 gauss.
The field between the Rotor and Stator magnets is calculated to approx 2746 gauss at the sticky spot.
The Rotor magnet should pass almost freely. It does look good on paper. I hope it will look just as good in real life.

The magnets in the picture is grade N45, 40mm long, 18mm wide, 10mm thick.
The solenoid is 25mm thick, 27mm wide, 55mm high. (Wire included in the measurements, the core is equal in size to the neos)

[Low-Q]

When you use a fish scale, you should make a mark at every one millimeter (Or use a ruler), to measure the forces versus position. When you adds up all measurements, it should approx. be possible to calculate the total energy required in the coil to pass the sticky spot. If the sum in the measurements without the coil activated is greater than the sum of energy provided to the coil, + possible sticky spots, over the same distance, the rotor will produce more energy than it consumes by the coil.

Also remove the stator magnet, and only use the coil. And see if you can get the same or more energy out of the machine with the magnet attached (If the rotor is free to rotate). This will be an easier and absolutely accurate way to determine if the [funny_mode]F.B.G.T.D.H.S.A.W.N.I.S.Y.P.B[/funny_mode] will work in OU with the stator magnets.

PS! This is easy, on this test machine - no poor excuses this time

Good luck!

Vidar.

[Honk]

Also remove the stator magnet, and only use the coil. And see if you can get the same or more energy out of the machine with the magnet attached (If the rotor is free to rotate). This will be an easier and absolutely accurate way to determine if the [funny_mode]F.B.G.T.D.H.S.A.W.N.I.S.Y.P.B[/funny_mode] will work in OU with the stator magnets.

PS! This is easy, on this test machine - no poor excuses this time

Good luck!

Vidar.

Sorry to dissapoint you again, Vidar.
There is no OU to be gained from this test.
Simple because there is no long uniform wall of stator magnets, only the end magnet closest to the solenoid.
This test just show the energy required to soften the last permanent magnet sticky spot in the spiral..
When the field from the solenoid have the same strength as the neo magnet, it's easy to move the lever between
the two sources of flux. Btw, my fish scale is digital showing kg or lb. I will mark the measurements thoroughly.

The OU from a magnetic wankel motor is entirely dependent on the high torque free ride along the long row of stator magnets.
You will just have to wait until I have built the complete motor to find out if I'm able to make a self sustaining unit.
I have the generators secured. I willl soon build the controller. I will place the magnet order in a couple of weeks.
Meanwhile I'm testing some important parameters. I have found out that the solenoids in the posted drawings is to long.
I will change this before ordering the motor parts.

[Gregory]

Nice progress too on this Honk!

I have a good experiment in mind to determine how much power you have to feed into the electromagnet for optimal & smooth operation.

Measure the distance between the rotor magnet and the closest stator in the spiral.
Fix one stator magnet on a test-board, and with a non-magnetic keeper between them place the rotor magnet in front of the stator to attract.
Then take the electromagnet and fix it near to the other side of the rotor magnet in the same distance.

Now you only have to slowly increase the input into the electromagnet and check it out  how much energy you have to put in to pull the rotor magnet out of the stator's field.
This will be the minimal power input for a really good & smooth operation. Although somewhat less would be still enough...

To figure the maximum useful input, you can use your current test rig with the electromagnet at the sticky spot, and check it out how much input you should put in to pull the rotor out from the stator magnet's field. I think this value will be greater than the other, because of the distances.

So, after you have noted both values you can use any between the two for experimentation.

One last comment: If you fix your electromagnet at a radius which is smaller than the radius of the last stator, then a little bit less energy should be enough to do the same.

Great work by the way... It will be a nice motor for sure.

Good luck!