The PM OU motor Project

[allcanadian]

If we are to succeed in building an OU motor we should first understand how to do things differently, we do the same things over and over expecting different results, which never happens. Lets start with an easy experiment, something anyone can build and test and get tangible results.
In pictures, PMM-1 to PMM-3 we have a basic setup using two inductors which are 120v/12v transformers cut down into inductors---- having open paths. On each inductor is a 50lb pull neo magnet, 1" dia x 1/2" thick, there poles are oriented on the inductors so that they will attract each other. The only issue of importance here is the angle at which they are situated relative to each other and the rotor armature, as we see in picture PMM-4 this geometry produces a magnetic field in which the armature can be influenced by the magnetic field but not the poles of the magnets to any extent. In fact there is basically NO cogging in the rotor at all ----- that is the whole point of this experiment, but the armature will produce a very powerful acceleration within this field but only "between" the poles. The rotor armature is a bolt wrapped with wire, nothing more, no exotic materials or circuitry is needed to produce what we want, that is action without reaction on the source.
Picture PM motor T120-12 is a scopeshot of the inductors connected in series with a capacitor, the scale is 5v/division so peak voltage is 7v using the 120v connections to the inductors only, as we want coils of large self-inductance. If you look at the setup most would be surprised to see any voltage at all on the inductors, but it is there ---- Do you know why?

[allcanadian]

Im going to expand on one of the last images, PMM-4. I have added green lines to show the basic geometry in this setup, as well there is a large red line indicating the direction of the field cutting the armature ---- notice the field always cuts "across" the armature and never parallel to it  If the field lines were ever parallel to the armature the armature would become polarized in an opposite sense to the PM field resulting in attraction (cogging). That does not happen here as there is a threshold point at which the armature starts to line up with the PM field poles but the PM field is more attracted to it's other pole than to the armature thus there is very little or no attraction to either pole and the rotor armature can freewheel through the field when not energized. Remember if there is any attraction by the armature to any pole you will have to pay in energy to remove it, it is a losing proposition. The yellow lines represent a small window of opportunity in which the armature may be energized, residual magnetism will carry the armature though past the center line. It should also be noted that while the armature can attract the PM field the PM field will still only cut across the armature--- the armatue itself will stretch the PM field outward to itself. I think you are going to be surprised by the amount of torque generated on the armature rotor without using the poles of the PM field and the fact that the rotor just freewheels through when not energized.
--- It should be noted that the inductors can generate power but in this setup they are used for no other reason than to hold the magnets in place.---
Best of luck

[hansvonlieven]

G'day allcanadian,

We are indeed on the same runway, as you put it. I did something very similar to you only I used permanent magnets on a steel yoke in my experiments. Like you I found what I consider a window of opportunity between the poles. This is my arrangement. I used two magnadur magnets. The rest is self explanatory.



Keep it coming. Good stuff.

Hans von Lieven

[Electrick]

Thank you allcanadian for taking the time to help us see a way out of the groove we have been stuck in.

I will get the parts together and experiment A.S.A.P.

Will post my findings.

Thanks again

[allcanadian]

Here is a better design which uses a brushless rotor
We can see it is an inductor (cut down transformer) with open flux paths, the inductor is about 3" from the PM rotor. The rotor will spin through almost 180 degrees with a single impulse into the inductor from a small 12v battery with quite a bit of torque. But this design has limitations in that the spin field is determined by the north pole of the inductorwhen both north and south fields should be utilized. A much better design will follow using a more natural spin field.