Magnetic Overunity Motor Design

[travin69]

Just wanted to start this thread so I have somewhere to post my group's results as we build our overunity motor.

Current Status:

- Group has 4 members, a mechanical engineer, nuclear engineer/chemist (that's me), systems engineer, and a magnetic guru.
- We have done the math behind the electrical coil design, optimized it for power and lowest power, and are currently building test models and soliciting for design ideas from the forum.
- Motor design is agreed upon.  It will be a piston type design with a 95% efficiency for converting linear motor to rotary motion.
- Magnets are in an attraction arrangement as this is more powerful than repulsion and less abusive on the magnets (this may change as we progress).
- We capture the inductive kick from the coil when it is de-energized and use it to increase power of the motor directly (small loses are inevitable).
- Overall motor design is also designed for minimal magnetic material (due to China's hording of rare earth materials).

We will measure power input and power output as follow:

Power input will be real time volts, amps, watthours, and watts based on the input from the battery, BEFORE any electrical components
Power output will be real time volts, amps, watthours, and watts from a resistive load placed on generator that is run from the output of the motor.
These will then be compared to each other with overunity considered reached with the power output is higher than the power input.

That is all for now.  Everyone keep up the good work and lets free the world of energy dependence on oil.

Regards,

Daniel

[truesearch]

@Daniel:

Sounds like you have a promising group! I hope you can start posting photos of your build as well as test results soon.

truesearch

[travin69]

I will be.  I have built a test motor already, though not of the final design.  Just finishing up the test generator build to place a load on it.  The current motor design is a rotary style motor with the magnets operating via repulsion.  It works on 24 volts pulsed dc.  I am trying to make it work via attraction for extra power.  I will post some pictures of the build and the power in/out in the coming weeks.

Regards,

Daniel

[Xaverius]

Sounds great Daniel,  I too am working on PM/EM motor/generator design in the planning stages at this time.  Hope you have great success and can post some videos/photos/schematics soon!

[travin69]

Update #1:

Wound the coils in bifilar manner; windings are parallel.  Each coil is 1000 turns, 9.1 Ohms.  My goal was to create the same number of Ampere turns with less resistance and lowered voltage.  What I discovered is that I was way wrong about how it would actually work.  So this is for all those aspiring folks out there: Powering the 2 coils in parallel DOES NOT double the turns just because you have two coils wound together, it only allows more current flow at the same voltage because of the lowered resistance.  Winding bifilar coils and connecting them in parallel is the same as using a larger gauge wire.

With this letdown under my belt there is a silver lining, sorta.  Powering them in series does make a stronger electromagnet.  Not sure why yet but it does.  This assertion is based on force measurements I made between the bifilar coil and a single strand wound coil.  And according to Tesla's patent, it allows extra storage of "magnetic" field energy (2X when compared to a single strand coil of the equivalent turns), though I have not verified this, if Tesla says it, it must be true.

Received my new core material.  It is magnetic core iron bar stock, 99.5% iron.  Testing it out this weekend.  Supposedly markedly more powerful than using 1018 CRS as my core.

Other idea I am trying is a "barbell" type core.  Based on the force equation for electromagnets and coils, force increases based on the face area of the poles.  So, I have a 1" piece of 1018 CRS.  I am going to leave the face at 1" and turn the center down to .5" to see if that will have any affect on the performance.  That is also being tested this weekend.

Finally sourced the ball joints for the piston motor.  Found them at Lowes.  They are used on the steering rods for lawnmowers.

Timing circuit for the coils is finished and tested.  It was much easier than I expected.  Just used a timing wheel to interupt a IR diode that provides the gate voltage to a NPN transistor.  Works great and has a fast response time for multiple pulses per revolution.

Added method that allows the motor to use the flyback voltage from the main coils.  The voltage is now used to increase the power the motor, instead of wasting the energy through a flyback protection diode.