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

[Honk]

You are right that the Back EMF is very high at sharp switching.
If the Back EMF is shorted out or kept low (any recover will lower the EMF voltage) the time of
back pull will increase as well. The only way to get almost non existent back pull time is to
let the Back EMF voltage climb as high as it wants, at the expense of recoverable energy.
But the spiral motor must not get any back pull when the rotor pass by the electro magnet.
The more you try to recover the Back EMF the lower the EMF voltage gets and the longer the
electro magnet is in back pull mode and preventing the rotor from a smooth ride.

This is why I estimate approx 10-25% of recoverable energy. The rest must be added from
outside the electro magnet. But using the Flux Booster will minimize the amount of added energy.
The whole point of the spiral motor is that it will provide great torque at high speeds and the
output from the mounted generator will provide more than enough power to become self sustaining.
But we can't know for sure until the whole setup (motor and generator) is built and tested.

[Paul-R]

The impression that I get from luminaries like Tom Bearden and Patrick Kelly is that the BEMF is a *good thing*. It is a route to get at zero point energy. Don't knock it. Love it. Use it.
Paul.

[Honk]

I guess Tom-B haven't really got any personal experience from working with Back EMF himself.
Trying to recover the BEMF will increase back pull time wich could in some cases be of
good use but in a Wankel or the Hilden-Brand motor it will cause back pull and this will
cause the motor to run less efficient or not run at all.

In a switched power supply circuit you actually recover almost all of the BEMF.
This is how switched power supplies can reach these high efficiencies of 95-99%.
They don't care about back pull because there is no moving parts. But a motor do care.

I have many years first hand experience of Back EMF from my daily work.
But I still don't know it all.
I'm still learning every day and that is what makes life so good and enlightening.

[ecc]

Hi Honk,
Great work, great concept! Thanks for sharing this.
I was inspired to print and study the drawings and couldn't help having questions popping up. I wondered how the magnets will be sitting in the  magnet holder. Why steel? Will you be able to experiment with the shape of the magnet rings to adjust the quantity, distance and angle of the magnets? Could there be an advantage to follow a natural spiral (snail) path for the two segments?
You mention a flux booster and controller. What's that?
Sorry about so many questions but most likely more people will be interested and grateful to hear more.Thanks.
Cheers
ecc

[Honk]

Hi and welcome to this forum.
I'll try to answer your questions the best I can.

1) Which magnet do you mean. The stator magnet or rotor magnets?
    Anyway, both the rotor and stator magnets will be keyed in place and cannot move out of position.
    If you download the ealier posted F.B.D.I.S.S.M_v2.2_blueprint.zip you can see the stator steel layout with its keys.
    In the earliar posts I hadn't finished the rotor magnet key holding mechanism. But you can see the rotor keys in the new pic.

2) I have chosen stainless steel to hold the stator magnets because this is easy to precision cut by laser.
    This material is also strong enough to withstand the attracting forces between stator and rotor magnets.
    The rotor will be made of light weight aluminum and magnetic back iron to enchance the magnetic properties of the rotor magnets.

3) I have used a formula that calculates the distance and angle in certain positions and then I use magnetsales
    calculator to calculate the force. http://www.magnetsales.com/Design/Calc_filles/PullAndPushBetween2RectMagnets.asp
    I enter the distance of both ends of the rotor magnet towards the stator magnets and get the difference in force.
    Then I split it by two to get the mean value. And this I convert it into ft-lbs and enter it into the Hp formula.
   
4) I have calculated many types of spirals to get the most powerful twist towards the narrow end position.
    When I chose to split the spiral in two halfes to balance the force against the ballbearings I got even better rotational twist force.
    Finaly I couldn't get more force from the spiral angle. Further calculations just shifted around the area where the most torque was
    created. Then I was pleased and designed the spiral in my cad system using the best output from my torque formula.

5) A Flux Booster Controller is simply a special type of controller I have designed. It's main purpose it to get rid
   of the long charge time of a high inductance coil. It has lot's of other features as well, such as being self runner prepared.
    An ordinary strong electro magnet can have a charge delay as long as 1 Second before reaching full magnetic field.
    Using the Flux Booster it will minimise the flux build-up time to less than 200uS = 0.0002 Sec.
    Inside a fast spinning motor this is very crusial to reach maximum performance.
   Another feature is that it also cuts down on power requirement to run a coil at high speed.
    Once initialized it just takes static power to maintain the strong field of the electro magnets.
    Typically it lowers the power need of the coil by 10-15 times. When going for overunity this is a good feature to have access to.
    You can read more about the controller here: http://www.overunity.com/index.php?topic=2386.msg38801#msg38801

I hope this clear things up for you.