Directory:Alan Francoeur Interference Disc Generator

Lasted edited by Andrew Munsey, updated on June 14, 2016 at 8:48 pm.

  • One error has been found on this page. Administrator will correct this soon.
  • This page has been imported from the old peswiki website. This message will be removed once updated.

Page first featured March 9, 2009

Image:Alan francouer interfernce disc generator 300.jpg

Alan L. Francoeur describes his generator as a multi-phase, interchangeable, ac/dc, variable, frequency dynamo machine of high efficiency.

There are issues related to "prior art" regarding electromagnet motors. In the interest of history, we resurrect this information regarding Alan Francoeur's Interference Disc Generator, as it is being challenged by Daniel Quale and his Directory:Daniel Quale Lenzless Generator technology. It was previously challenged by Farady Labs in Russia. Though he never filed a patent, he does claim to have prior art on these designs as published at various places across the web.

Official Website

Alan has never had a website that we know of. - A discussion list Alan has been running since Dec. 2004, which has been active since then.


Alan L. Francouer 1986 with the Interference Disc Generator


See also

Al Francoeurs Gary Motor Replication - Describes two photos posted to the JLN discussion list, where Al Francoeur claims to have duplicated the basic Wesley Gary neutral magnetic line effect. (IceStuff Dec. 29, 2001)

Al's motor/generator impulse machine's

Al's motor/generator impulse machine's, diagram drawings

The Edwin Gray Pulsed Capacitor Discharge Electric Engine - Parts purchased by Alan Francouer.


Web Archvie Part 1

Web Archive Part 2

Image:Interference disc generator collage 200.jpg

This is my writing and development about the Interference disc generator, and the permanent magnet dynamo machine, and other related inventions. I have always been intrigued with electricity and magnetism and aetheric energies starting at a young age. Back in 1980 I wanted to do something to help get my large vehicles better fuel economy. With this goal in mind, I experimented and designed my first heat exchanger vaporizer system to do my part to clean up our cars and trucks, are two earlier vaporizer units under construction. For more information about this fuel system, please refer to my vaporizer fuel system report. The main body of this writing is referring the permanent magnet dynamo system that has been in the making since 1987, starting after the development of the interference disc generator.

Image:Francoeur generator alnico 200.jpg

Note: The following is from Alan L. Francoeur from 2003.

I invented the Interference Disc generator concept while I was employed at Giant Yellowknife Mines NWT from1983 to early 1986. The idea of using metal blocking plates to shield magnetic fields stirred in my mind while working around heavy electrical mining equipment, and 1000hp and other electric motors with exposed coils that have heavy metal around the outer casing. I did a search at the time and found John Ecklin’s work very interesting with his application of the shielding effect. During my off time in Yellowknife, I was experimenting with the interesting effect of producing induction with a stationary coil mounted beside a stationary magnet with a small air gap maintained between the magnet and the coil. During the construction of my first disc machine, I called it the Interference Shielding effect because of the interference the blocking disc does to cause induction, thus the Interference Disc Generator fits the description. The first transformer coils I used to test the interference shielding effect were used from old radios, and the magnets were alnico types. Back in 1986 in Calgary Alberta, a friend Bud Johnson and I constructed the first test disc generator model using alnico magnets, and later ceramic magnets were installed shown in fig. 4b. Months later I designed and began construction of another larger Interference Disc machine with horseshoe shape neodymium 35 grade magnets mounted on the outside, and with the N and S magnetic poles facing toward the coils in the center portion of the machine. The coils and magnets in this larger machine are mounted in reverse of the first Interference Disc generator.

General Description of the Interference Disc Generator

The Interference Disc electrical generator is made of a stator consisting of an array of even number parallel mounted bar magnets arranged and supported in a circular fashion equidistant from each other, where the polarity of the magnets are alternating when viewed at either end.

Also in the stator, there are twice the number of coils as bar magnets wound in pairs on U-shaped cores. One half of the coil pairs mounted at one end of the bar magnets in the same circular fashion, each corresponding to and aligned opposite to a pair of bar magnets and separated from it by an air gap. On the other end of this pair of bar magnets there are another set of coils aligned likewise.

The rotor is made of two magnetically susceptible circular plates (such as iron or steel) centrally mounted on an axle, which is in respect to the array of magnets and coils.

The interference discs are separated from each other such that they can rotate in the air gaps between the magnets and the coils. The interference discs have a number of equidistant opening, either more or less in number than the number of the bar magnets.

The arrangement and size of the openings are such that when the discs are rotated by an outside motive force, they open the magnetic field between adjacent bar magnets, and the opposing coils at both ends of the stator simultaneously. Hence inducing an alternating electric current in the stationary coils.

By opening and closing the magnetic influx to the core of the coils, an alternating current will be generated in the coils in a retro-order to the rotational direction of the interference discs. Depending on the number of magnet-coil assemblies three phase AC current can be obtained. The regulation and attenuation of these currents can be achieved by known electric engineering methods.

Option I and Option II Assemblies

A variation of this option I or option II generator has been constructed by mounting two sets of magnets of the stator ( on magnetically susceptible rings (119) such as soft iron. The polarity of the neighboring magnets are alternating N, S, N, S, etc.

Adjacent to one ring of the magnets and separated by an air gap are parallel mounted induction coils corresponding to and aligned with the magnets. On the other end of the coils, (111A) are an identical set of magnets (113) arranged in the same manner as the first set, but the polarity is reversed in respect to the coil.

Thus if on one of the end plates the magnetic pole facing the coil is the (N) pole than on the opposite end plate the (S) pole will face the coil (111A).

The rotor and it’s configuration is the same as in the first variant (see), and the induction of AC current, occurring in the same manner and in the same order as described before. This assembly can be constructed in any practical multiple units of the above.

Some of the unique characteristics of this design are:

1) Non rotating magnets.

2) Non rotating coils.

3) No need for brushes or commutator.

4) Less rotating mass due to the field coils and magnetic alloys being stationary.

5) No back emf is noted upon the spinning balanced interference disc while the coils are loaded.

One interference disc has 11 fins and the other has 10 fins on the disc.

The amount of magnetic balancing effect imposed on the disc will depend on the number of fins on the disc, and the number of magnetic poles. The ten finned disc has an advantage because it allows opposite coils to be connected in phase. All coils in phase can be wired in series or parallel to build volts or amps to a desired level, and the volts and amperage in each coil is effected by the number of turns of magnet wire. Magnetic balancing effect on the interference discs reduces start up torque on the motor and it is increased or decreased depending on the number of fins as compared to the number of magnet poles.

I tested a pair of discs with 12 fins against the same number of 12 magnet poles, which has shown a much larger static holding force on it, and needs more energy to rotate. However, an interference disc machine using 12 fins per rotor can be balanced for easy turning using multiple rows of {coil-disc–magnet-coil-disc-magnet} arrangements, and spiral them to balance each of the 12 fin interference discs against each other. All the coils in one ring assembly can then be connected in phase, where you can built volts and amperage with parallel and series wiring of the coil banks. I tested a 10 fin disc against a 12 pole circular magnet arrangement which has a reduced static holding force compared to the 12 fin disc. The 11 finned disc proved to reduce the static holding force more than the 10 finned disc. However, using either the 10 or 11 fin disc on the machine, the apparatus needed very little start up torque to rotate the discs while at the same time changing the phase relationship between the coils.

The horseshoe shape transformer coil was chosen because it provided an optimum flow for the magnetic flux, and it fit the overall design very well. Amorphous alloys instead of soft iron as the core material have shown less heat and higher efficiency with less hysteresis losses, and larger electrical output.

The characteristics of using the 10 or 11 finned disc to magnetically balance the rotor has the same effect of reducing start up torque regardless of the type of magnetic material used. However, the choice of metals and or alloys will alter the magnetic shielding effect due to their ability to block magnetic fields. Compared to other magnets, the use of rare earth neodymium magnets produces more wattage output, and increased stress upon the interference discs due to the stronger magnetic fields.

High permeability and high strength steel should be the metal of choice for constructing the discs for durability and closer tolerances for a smaller air gap. Amorphous metglass shielding material will give you the best results for this application but with increased cost.

Another set of interference discs will be constructed with increased strength for this shielding application, while using rare earth neodymium magnets in the machine. Using very strong non-bending magnetic shielding alloy steel to reduce the warp in the interference discs will allow for a smaller air gap to be maintained between the magnets and the coils. Another set discs can be constructed of multiple layers of metglass shielding material (laminated amorphous alloys) pressed together with very strong epoxy resins. Using amorphous alloys in the interference discs will produce superior magnetic shielding with almost zero hysteresis losses. Flanges need to be constructed to support the discs to eliminate the warping while being small enough to fit the design. With these and other improvements in the machine, the results will be an increase in electrical output and improved efficiency.

Some of the early coils were wound with 14 gauge magnet wire with 100 to 250 turns of magnet wire. I wound 4 coils with 250 turns of wire, and another four coils with 100 turns, and the other 4 were used for experimenting with other combinations. There are 12 coils total mounted in the earlier aluminum machine and 6 larger (letter I shape) coils in the larger more refined phanolic machine, the frequency of the coils is determined by the rpm of the balanced disc rotors. The machine will house up to 6 letter I coils for the larger machine, and are designed to output 300 watts each in any volt or amps depending on the number and wire size of coil windings.

The efficiency of the unit would vary greatly depending on the speed of rotation, the width of the air gap, the strength of the magnets, and the materials used to construct the coils. I used nickel base amorphous metglass in the coils in both the smaller and larger machines, which as a result, shows greater efficiency as compared to conventional core laminates. Less energy is needed to spin the balanced disc rotor while causing a larger moving magnetic field to cause induction in the stationary coils. With this effect, it is easy to visualize the advantages this design has over conventional generators and motors. New testing of the coils will be conducted after the machine goes through all the upgrades to eliminate the problems with the warping interference discs.

The Interference Discs Generator described in this document has the potential to produce more than unity effects by easy turning of a magnetically balanced (non-warping) interference disc. Optimizing the device with closer tolerances and correctly selected materials and incorporating internal magnetic balancing, will add to the success and improved performance of this unique generator design.

Improvements can be made with this design while the operating principal remains the same. Looking at the photographs included you will see the 1st proof of concept generator frame is constructed mainly from aluminum, this metal was used only because it was inexpensive material and easy to work with fig. 15. Non magnetic and non-conductive materials should be used to construct the generator frame supports to eliminate the eddy current losses. All of the nuts and bolts used to hold the disc generators together worked well for making the test machines capable to have adjustable air gaps, however, they can all be eliminated with design changes that presets the gaps and tolerances to optimized the conditions of the interference disc effect.

Many improvements were adopted in the next larger #2 version of the Interference Disc generator fig. 16. Phanolic material (non conductive and non magnetic) were used in the frame supporting the magnets and the coils, thus eliminating eddy current losses within the frame support. Large aluminum E bars were used to support the magnet frame support and the coil frame support with no noticeable eddy current losses. The aluminum used is positioned further away from the coils and magnets in the larger generator so as not to be affected by the magnets. Larger more powerful neodymium magnets and I shaped transformer coils were installed and tested in the larger machine which showed an increase in output power over the 1st machine fig. 17. Using more powerful neodymium magnets in this larger disc machine created some problems with the interference discs. Not only did they warp the discs they caused them to vibrate and chatter causing the fins to hit the magnets and the coils. I increased the air gap to over half an inch and moved the disc further away from the magnets to prevent damage. The effect was a reduction of magnetic flux reaching the coils that reduced the power output. The discs must be constructed much stronger and rigid if using neodymium magnet grade 35 or greater, then the air gap can be closed so more magnetic flux will reach the coils allowing for a greater electrical output.

The wiring of the coils circuit can be constructed by known engineering methods to achieve AC or DC power, and like any conventional transformer, wind the coils with heavy wire for more amps and more turns for more volts. The coils are stationary in this machine which makes it easy to harness AC power directly from the coils without brushes. All coils that are in phase can be wired in series or parallel, the number of the blocking plates on the interference disc determines the phasing of the coils.

A diagram shows the path of the magnetic flux movement in relation to the position of the blocking plates of the interference disc. The magnetic field in the core/coil is switching polarity as the interference disc fins alternately moves in and out of the air gaps on each side of the coil. As you can see, depending on the position of the disc, positive and negative induction takes place for AC output of the coils. John Ecklin has achieved this effect using rotating blocking plates. I have achieved the same effect using balanced rotating interference discs with multiple stacks of isolated coils and poles mounted in a circle equal distance from each other.

Nickel iron base metglass amorphous cores are shown (minus coil winding) for the larger Interference disc generator. A side view and layout of the inner coil phanolic mounting plate is shown. The black holes noted in this drawing show how one disc with twelve holes looks in relation to the side view of the coil mounting plate, the eleven red holes show how another finned or holed disc looks in relation to the twelve disc, both are overlapped.

For the earlier larger disc machine, I designed and ordered neodymium grade 35 magnet corner pieces first machined to size and then magnetized. These magnetic corner pieces turns the flux around the 90 degree corner of the horse shoe magnet to face the coils with minimal flux leakage, while allowing for the increase of magnetic material for the maximum amount of flux reaching the coil. However, because of the direction of magnetization in the corner pieces with this earlier magnet design, there is north, and south pole flux leakage from the two 3/8” portions of the corners of the magnet pieces. Using more powerful neodymium grade 45 magnet material, and with the redesign of the corner portion of the magnet piece, the new horseshoe shape magnet is much stronger than the earlier one. I redesigned the corner pieces to eliminate all flux leakage using wedge shape keepers, which will focus all flux from the poles to the coils. Twelve new horseshoe shape neodymium grade 45 magnets will be installed with new disc and tested in the upgraded machine.

Included is a list of the parts and materials I used to construct the first test Interference disc generator. The whole idea with this interference disc concept is to move a larger amount of magnetic flux with smaller amount of energy. In this case, the balanced rotating interference disc becomes the part of lesser energy input, as compared to rotating magnets and or coils in another system.

I would also like to make note my reproduction of Gary W. Wesley’s permanent magnet motor. During my testing of the machine I constructed, I found the neutral zone effect to be valid. This neutral zone effect was combined with magnetic balancing using springs and has made the blocking plate rocker assembly very easy to move in and out of the stationary magnet. The smaller mass primary starting force is able to move a larger mass secondary force, that being the mass of the rocker assembly, the blocking plate, and activation trigger arm that throws the system unbalanced.

The effect I reproduced with Gary Wesley’s permanent magnet motor are related to the Interference Disc generator in the fact that blocking plates are used to shield the magnetic field, only we differ on methods to balance the blocking shields. Gary Wesley used springs to carefully balance the blocking plate, and I used a different number of interference fins working with the magnets to balance the blocking plates. The magnets in my Interference Disc machine become the springs.

Closing comments of the disc generator

In closing this discussion of the Interference disc generator, I would like go over and point out some of the concepts that I incorporated into the design of my permanent magnet dynamo.

As I made further progress and completed the later stages of the Interference disc generator, it became clear to me to use certain concepts of the machine and incorporate them into the design of my multiphase permanent magnet dynamo. Some of these concepts are explained here.

I have constructed several interference discs that have a different number of blocking shields, some with 10 blocking fins and some with 11 blocking fins and others with 12 blocking fins. They are all interchangeable on the machine to change the phase relations between all the isolated coils. The 12 finned disc will produce a single-phase dynamo with all the coils in phase, and the 10 finned disc on the machine will produce a three phase dynamo. One phase represents four groups of isolated coils, and the second phase represent the other four coils, and the four coils left are the third phase, for a total of twelve coils. All just by changing the number of fins on the interference disc and or adding more layers. Using 12 magnet poles and the 10 or 11 interference fins on the disc, the rotor discs becomes magnetically balanced and easy to rotate in spite of the load on the coils. The 12 finned disc has a larger holding force because of the same number of fins as magnetic poles. However, it can be reduced to almost nil by adding more layers of interference disc and balance them against each other. Many in phase coils can then be added in series or in parallel to build your power levels to any desired potential.

Both machines have stationary coils, and the disc generator has 12 magnetic poles (6N and 6S), and the permanent magnet dynamo also has 12 magnetic poles (6N and 6S). The disc generator uses 10 or more fins on the interference shielding plate per rotor, and the permanent magnet dynamo has 10 or more coils around each rotor. There is the same number of interference blocking plates as there are induction coils on each of the two difference machines and the number of blocking fins and or coils are interchangeable. The back emf effects are different on both machines, the Interference disc generator demonstrates easy turning of the discs while the stationary coils are loaded, and when producing alternating current the permanent magnet dynamo rotor slows down when a load is placed on the stationary coils. Both machines produce AC power out of the coils and the Interference Disc generator has a closed magnetic circuit through the coils, and the permanent magnet dynamo has open magnetic circuit through the coils.

The Permanent Magnet Dynamo

I would like to begin this topic at this point in describing my permanent magnet dynamo machine.

I designed this machine to be completely interchangeable into many different motor generator combinations. These combinations involve different number of magnetic poles and different number of interchangeable coil poles in the same machine, two versions are possible, one with isolated coils and another where the coils that share a common core.

We can change the magnetically balancing effect (holding force) by changing the number of coil poles or (interference disc fins) in relation to the magnetic poles. This turns the machine into a multipurpose, multiphase, variable output, and variable frequency ac dc permanent magnet motor generator system. I first designed this unique multi purpose dynamo in 1987 after I built my third Interference Disc generator.

Dynamo description:


It is well known that a bar magnet has its magnetic field concentrated at the N and S pole ends, and the half way line between the poles of a magnet is the neutral zone, this is the region where the magnetic field is canceled or neutralized. The ferrous keeper ring I designed for this rotor is mounted near the axle and it has machined flat decks so the magnets attach flush to the deck of the keeper ring. Because of this feature, flux leakage is reduced at the keeper ring and the magnetic field concentrates at the rotor poles. With the poles of the magnet positioned near the axle and attached to the keeper ring in the rotor, the magnetic field that was there is now forced to add magnetic field density to the outer magnetic poles on the rotor rim. The density of the magnetic field at the poles is now greatly increased which makes a very powerful small size rotor. The ferrous inner keeper ring (active iron) that is installed inside this rotor design, is also the neutral zone of the magnetic field when viewing all the combined permanent magnets in the rotor. Shown is a cut away view diagram of the rotor.

I utilize rare earth rectangular shape neodymium grade 35 bar magnets with the dimensions of 3" long and 1"x1" on the end poles. There are 12 bar magnets mounted 30 degrees apart in NSNS configuration, and the bar magnets are attached to a precision machined inner keeper ring which makes the active iron the region of the middle of the magnetic field (the neutral zone). Another way to view this is to imagine two 3" long bar magnets attached together, you now have a 6" long magnet. Bend this magnet in half and install iron at the U and it now becomes a horseshoe magnet with two 3" long pole ends. It’s a powerful rotor design in the fact that each of the 3" long bar magnetic poles has the field strength of a 6" long bar magnet. More poles on the rotor will allow for higher frequency ac generation at lower rpms, twelve magnetic poles on each rotor is shown in.

The drawing and picture, shows twelve magnet poles in each rotor in relation to the position of the coils. Ten amorphous cores are shown mounted around each of three rotors before they were wound with magnet wire fig. 30. The machine I have constructed houses a total of three rotors side by side that are mounted 10 degrees apart in relation to their magnetic poles, each rotor has twelve magnets installed for a total of 36 magnetic poles shown. This dynamo concept can be constructed to any size with unlimited numbers of rotors and coil combinations to fit any power requirements.

It is well known that a magnet exerts a force of attraction to iron bringing them closer together, after they have come together, they are in their static position. A force must be exerted to either the magnet or the iron in order to pull the magnet and the iron apart, removing them from their static position. The term static position is used to describe the point when the magnet and the iron bar are at their closes point.

As in the Interference Disc Generator, this Permanent Magnet Dynamo I am describing also uses an internal magnetic balancing effect which reduces startup torque on the rotor. In this system, one set of magnets is in their static position in relation to the coils, such as the impulse coils. Another set of magnets on one side of the rotor is not in the static position, and there is another set of magnets that is not in its static position on the opposite side. One side is half in to the coils, and the other side is half out the coils, allowing the rotor to have minimal start up torque in turning the rotor. The magnets function in two jobs, the first with its velocity is to cause induction into the transformer coils producing ac power. The second function, is the opposite pair magnetic fields on the rotor balancing each magnet out of their static position in relation to the coil positions at any given time, they cancel their holding force which puts the rotor at equilibrium. This reduces the amount of start up energy required to rotate the rotor resulting in higher efficiency. It allows the rotor and or multiple rotors to turn easily and efficiently despite the inherent powerful holding force of the rare earth neodymium magnets.

Looking at the coils, the coils marked A and F represent the motor impulse coils, these coils can be wired to match any high voltage or low volts impulse source. With the three rotor machine configuration, I have connected 6 impulse coils in three phase to function as the motor impulse circuits with a hall effect brushless motor controller. As a permanent magnet motor generator, the efficiency of this three phase motor set up has shown to be in the high 90%, still a little under unity, but not bad for AC coming out of the regenerating coils. All regenerating coils, and are marked with letters A through to J. These coils are isolated from each other and are connected in phase with there opposite counter part. The regenerating coils marked J and E are in phase and connected as one larger coil, the other pair of coils marked I and D are also in phase with each other, as is coils H and C, and coils G and B.

Each AC to DC regenerating coils, and other isolated AC output coils have a machined phanolic holding rod that houses 59 feet of amorphous metglass material, which give a 1” diameter and 2” long core. All of these coils are interchangeable from one coil mount to the other so as to tailor the machine to any desired power application.

There are 10 coils, with 9 of them wound with 735 turns of #18 magnet wire for 120 volts ac output, and coils for DC output. One impulse core is shown in the far right, with an unwound regenerating core shown beside it, and a phanolic core holding rod and coil winding backing plate.

On the upper far left, there are two amorphous mobius coils under construction for experimenting. I think they may work well for an interesting MEG project with an added twist to the core.

I wound all AC regenerating output cores with cobalt base metglass into magnetically hollow core cylinders, and all the motor impulse solid cores are constructed of nickel base metglass shown far right. The motor impulse core dimensions are 1”x1”x3” with the first two inches for the coil winding, and the other 1” portion inserted into the coil mounting bracket. This is the coil that has produced 20 amps at 10 volts ac, and it is to be used for the single phase or three phase ac dynamo option, with 12 of these in phase coils wired in series for 120 volts output at 20 amps. Depending on the type and efficiency of the drive motor and when used as an AC dynamo, each rotor and 12 coil ring assembly can produce over 1200 watts output with over 95% efficiency or greater. However, test running of a 1hp dc electric motor while producing ac current from the coils at 60 to 120 cycles per second, have shown a drop in the systems total efficiency to around 80%. The low efficiency of the dc test motor must be accounted for. This dynamo demonstrates high efficiency from the mechanical rotation of the permanent magnet rotors to electrical power out of the amorphous coils, in spite of how you turn the rotor using wind, micro hydro, etc.

The dimensions of the phanolic motor coil mounting hardware. The impulse coils mount to these brackets and are inserted into the holding slots on the machine. They are interchangeable with the regenerating coil mounting brackets as they both fit into the same holding slots. Looking at fig. 39, there are differences in the way the motor impulse coils are mounted as compared to the regenerating coil mounting brackets. This drawing is of the same phanolic bracket. Holes are drilled into the blocks were the regenerating coils are inserted with a holding bolt on the top. The cores of the regenerating coils are smaller then the cores of the impulse coils because there is less impulse coils as regenerating coils installed on the machine, and any amount of coils can be add or subtracted as needed.

This has an advantage of interchanging one coil for another into the same holding slot with out effecting the rotors on the machine. The more coils there are on the machine, the greater amount of electricity can be generated.

Letter U shape aluminum pieces are used to hold all the coil mounting brackets on the walls of the machine.

The U shape mounts are assembled equal distance from each other on the wall stator, and depending on the amount of coils and phases one wishes to configure into the machine, up to 12 coil U mounts are installed. However, 10 coil mounts are shown in all drawings and pictures in this writing.

The finished coils, are wound with 334 turns of #15 magnet wire. When ac is rectified into dc, the coils produce up to 18 volts DC depending on the rapidity of alterations of the coils. Each coil can produce up to 125 watts of electricity, with the exception of the coil. Or another way to explain this, using the rotors I describe in this writing each coil has the ability to produce up to 125 watts electrical output. It matters not if you wind the coils for high voltage or low voltage AC or DC output each coil will still produce up to 125 watts of power. When six in phase coils are connected in series or parallel, the output power also multiplies by six, and so will the energy input so long as the machine is used as a conventional single phase or three phase dynamo power supply. If twelve coils are mounted around each rotor, all the coils on that rotor will be in phase for a single phase AC/DC dynamo. Take three rotors side by side with 12 coils around each rotor, spiral these rotors out of phase by 10 degrees as shown in fig. 42, it makes a three phase dynamo capable of producing around 4kw of electricity.

The efficiencies of this dynamo are so far inconclusive with regards to producing an endless self running machine. Our research is continuing to improve the efficiency by eliminating all conventional type ac and dc motors from this dynamo, and incorporating high voltage dc impulses of very short time durations as Ed Gray did with his technology years ago. However, a description of my early self running attempts are included near the end of this dynamo report. These tests have manifested an abundance of heat in the 24 volt dc drive motor.

Tests to produce an abundance of heat

I have testing the machine so as the output coils are connected to regenerate a 12 volt battery as the motor is turning the rotors. I used a bran new conventional permanent magnet 1/4 hp 24 volt dc motor that is running on 12 volts to turn the 110 pound 3 balanced rotors, and or the 35 pound 1 balanced rotor version.

The regenerating output coils produce AC to DC power with no noticeable ripple on the scope. The generated direct current from the coils is connected to go back into the battery, in which the motor uses to produce the torque needed to rotate the rotor. As this happens, the regenerated dc power from the coils is again going back into the battery first, and then to the motor. The result is that the battery supplies less power to the motor when the regenerating DC current is going into the battery. The motor takes on a load from two sources, one is from free wheeling the rotor with out loading or drawing current from the coils, and the other is the load induced on the motor when the coils are loaded to produce current.

The dc permanent magnet motor has shown that during one of many switch mode tests, it consumes 15 amps at 12 volts from the battery while a chosen number of regenerating coils supply ½ the amount of current going back to the battery. The battery supplies 50% of the amps and the regenerating coils supply the other 50% amps. This effect can be changed depending on how many open isolated regenerating banks of coils are activated and loaded.

This test shows a 15 amp draw the motor while it is turning the rotors under load while regenerating current from the coils. It may be they balance each other and both battery and coils supply 7.5 amps each that make the total 15 amps draw on the motor. This accounts for the 15 amps total load that is shown on the dc drive motor. It produces an excessively large amount of heat in the dc motor that is useable output energy. On a larger scale the heat generated in a given motor can be enormous. More accurate measurements are needed to determine the true energy in verses energy out.

However, this electric heat pump effect can be altered to produce more or less heat depending on the size and type of the drive motor, and the amount of regenerating coils that are placed under load. Cooling tubes wound around the motor with water flowing through them is a way to pull the heat out for useful applications. Hot water from the drive motor and electric power from the coils at the same time.

After running the machine, the amorphous regenerating coils remain cool to the touch where as the conventional dc motor gets very hot with higher amps going through it. The machine also has a longer running time when the coils are regenerating the battery, as compared to running an outside equal load with the same amp draw, in that case the battery drains much faster.

This sheds light with the observation of high heat build up in the motor side (less efficient side) of the circuit while being cooler on the generator side (amorphous side) of the circuit. After hours of run time the battery begins to drain, when this happens, the battery begins to show tangible temperature changes from one side of the battery to the other. The whole negative side of the battery remains cool to the touch (temperature drop), while the whole positive side of the battery gets warmer to the touch (temperature rise). The effect is repeatable and only happens when the regenerating coils are connected to charge the battery as it is running. It may be approximately 20 degrees difference in temperature, depending on how many regenerating coils are activated sending its current to the battery. There must be exothermic reactions and endothermic reactions going on inside the battery motor generator combination that is causing this temperature difference. The load and heat generated can be changed the on the motor from the flick of a switch that activates and loads the output coils, which in turn dumps it's energy back into the battery pack or outside load. The efficiency ratio of the machine changes depending on how many and which banks of regenerating coils are activated, which again also effects the temperature difference manifesting on each side of the battery, motor, and amorphous coils.

Other tests

An Automotion dc brushless 3 phase motor controller with hall sensors was used to test the machine in fig. 45a. Tests have shown the 1hp dc motor and the three phase brushless dc motor controller will not be the answer to closing the loop on this motor generator machine. The brushless controller has a 50% duty cycle which will not manifest the electro radiant effect, and it also has a constant draw on the battery as a regular dc motor does. It is much less efficient than using very fast and short unidirectional dc impulses in the motor impulse coils to kick the rotor around. This brings the subject of Nikola Tesla’s magnifying transmitter and Ed Gray’s radiant energy impulse motors to light, and a possibly answer to closing the loop for a real auto-rotating machine.

Before I go further with this, I want to point out the many phase possibilities this dynamo has. If you look at the coil arrangements in the 10 coil machine, you can clearly see the coils that are in phase with each other. When a second and third rotor is installed with all the coils attached, one pair of coils on the first rotor is in phase with another pair of coils on the second rotor, and another pair of coils is in phase on the third rotor. With the ten coil to twelve magnet pole rotor assembly, the machine has five phases of isolated banks of coils. If twelve coil mounting bars are attached around the three rotors, and the three rotors are spiraled off set by 10 degrees, you will have a powerful three phase dynamo. If the rotors are not off set by 10 degrees and are lined up in phase with each other, all the coils on the machine will be in phase for a powerful single phase dynamo. The volts and or amperage can be tailored for an application by the winding of the transformer coils, and the machine produces 60hz at 600 rpm. This dynamo machine concept is also interchangeable into many other motor generator combinations, and sizes, and any volts or amps requirements, it all depends on the needs of the end user.

It is possible to have super efficiencies with this system using unidirectional hv dc impulses of very short duration’s at the make brake contact at the closure of the switch.

I have acquired two of Ed Gray’s radiant energy impulse motors #4 and #5 to revive an almost lost technology. I am proposing to combine a special permanent magnet dynamo with less back EMF that is tailored to produce 5kv dc under 2000rpm. This dynamo will energize a 5kv dc capacitor bank and replace Gray’s 12 volt to 5kv dc converter. The energized capacitor bank will discharge through the conversion tubes in the very same manner as in Gray’s original circuit, only the capacitors will get energized from the high voltage dc dynamo instead of from a battery through an inverter. This version of a high voltage dc dynamo will be connected to and turned by Ed Gray’s EMA motor, a starter motor will disengage after it begins running.

There are three banks of high voltage coils that are connected 120 degrees out of phase from each other, each bank represents 12 - 100 watt coils for a total of 1200 watts per phase. All isolated coils in each phase are wired in series to produce the high voltage dc potentual to energize the capacitor bank. The isolated capacitor bank will discharge their potential through its conversion tubes in 120 degree increments each time the impulse coils are at their closes point toward each other. One isolated capacitor bank will discharge through the conversion tube with it disconnected from the dc dynamo circuit. The second isolated capacitor is at this point beginning to receive its charge from the dc dynamo, while the third capacitor phase is fully energized just before the switching circuit disconnects it from the dc dynamo for it discharge phase. This fully aligns all the isolated 3 coil phases in this permanent magnet dynamo system to the 120 degree three phase radiant energy impulse system of Ed Gray’s EMA motor #5.

The plan is to eliminate all the batteries and converter and use a rotating high voltage dc dynamo in its place. Nikola Tesla used high voltage dc dynamos with capacitors as part of his magnifying transmitter to produce radiant electricity. So it seems logical to do the same thing, merging Ed Gray’s radiant energy motor and our version of a high voltage dc permanent magnet dynamo. Could it regenerate a car, or power a home, and or a factory?

I would like to acknowledge two friends of mine who have helped make the Interference Disc machine possible, Bud Johnson 1986 and the late Dr. Carl Reich shown 1987. I would also like to acknowledge Wilbert Griffith and Brian & Rose Langan for their contribution in helping us make these projects possible, and there are others who wish to remain anonymous. Bud Johnson also an inventor, was one of the first people who I met after relocating to Alberta from the NWT, he made arrangements for us to construct the first disc machine in a machine shop.

Dr. Carl Reich was a pioneer in the alternate medical field and he published a book along with Robert R. Barefoot called "The Calcium Factor", copyright 1992. Through Carl’s dedication and hard work with alternate health and energy, Dr. Carl Reich contributions have also helped made the Interference Disc machine and our Permanent Magnet Dynamo possible. I also would like to thank my wife Jan Francoeur for being part of making this research possible, she has spent countless hours to prepare this report and assist in the reconstruction of these machines.

The test results and hypothesis I have written are not complete, and the research and development of the described magnetic energy machines is on going, and as such, the potential and performance and true efficiencies of these machines are still yet to be determined. This author knows that the aether is real and free energy systems are possible, and I will continue to work until I have completed the integration of Ed Gray’s radiant energy motors with our larger version dc dynamo machine. When this happens, a new round of testing will begin with our attempts to run the two machines together in closed loop regenerating mode.

I hope I explained these energy machines in a way that you all can understand, and more information will be released as progress is made. You may find this information useful with your quest to be energy independent. However, if you profit from any of my ideas I have described in this writing, then in all fairness, please remember to reward the inventor so research and development can continue.


Alan L Francoeur


British Columbia, Canada

August 11, 2003


Interference Disc Generator and the Multiphase Permanent Magnet Dynamo

ALF Vaporizer Archive


This is "prior design", but no patents have been found.

See Alan L. Francoeur's Work and Russian Patent Very Similar

and Power Generator: Magnet Alternator.


Aetheric Radiant Energy Research Magnetic Energy Systems:

Alan L. Francoeur:

Yahk, BC, Canada

phone: (250) 424-5423

E-Mail: []

In the News

Free Energy Blog:2014:02:05 - right-hand-rule a key factor... wound in such a way that you synchronize windings in polarity, maximum energy from coils with minimal losses as nature does. I've got the EMA power supply running. (Free Energy Blog February 5, 2014)

Image:Alan-Francoeurs 006 sq 95x95.jpg
Latest / There was an error working with the wiki: Code[1] > Directory:EV Gray > Directory:Alan Francoeur Interference Disc Generator > Classifieds:Original EV Gray Motor Available for Right Lab - Alan Francoeur of BC, Canada, has been doing research and development in electromagnetic overunity systems for maybe a couple of decades. He has three of the original Edwin V Gray motors, and recently acquired one of the original controllers, which he thinks may be where the secret is found. He's willing to sell one of his motors to help finance his reverse engineering project. (PESWiki January 30, 2013)

Alan Francoeur's Report on ExtraOrdinary Technology Conference - "I hope that my appearance at the conference shows my support to the field of alternate energy technologies, along with hope and assurance knowing that we can change the world if we ALL put our minds to it.' (PESN Aug. 4, 2004)

Innovate Energy Technology - Saturday July 31, 2004 presentation.

Other Coverage

Valley inventors pursue free and clean energy generators - 6-page PDF by Jean Manning (Okanogan Life April 2005)

Al Francouer - "This post is an update on the status of our motor generator systems, first of all I would like to say, it's takes a great effort building these machines at this scale, don't under estimate the amount of time, work and money we have put into all this for the last 21 years." (IceStuff)


Alan Francoeur - Over the last 28 years Alan has worked to develop several different magnetic energy technologies each one demonstrating concepts for improved methods of generating electric power and as a prime mover. (Panacea)

INTERFERENCE DISC GENERATOR… A Radical Departure in Generator Design! - Tesla Tech Magazine, "ExtraOrdinary Technology" October/November/December 2003, Volume 1 Number 4

Related Technologies

Image:Lenzless generator 95x95.jpg
Latest: Directory:Electromagnetic >Directory:Daniel Quale Lenzless Generator - Inventor claims to have come up with an electric generator that is unaffected by Lenz's Law. According to the site, this type of generator should be capable of overunity. (PESWiki March 9, 2009)

The Edwin Gray Pulsed Capacitor Discharge Electric Engine


See Talk:Directory:Alan Francoeur Interference Disc Generator

See also

Directory:Best Exotic Clean Energy Technologies

Directory:EV Gray

Directory:Norman Wootan

Directory:Emdrive (Electromagnetic Space Drive)



Directory:Electric Motors



Directory:Best Exotic Clean Energy Technologies

News:Best Exotic Free Energy Technologies

Template:Tesla footer


Directory:Galactic Sea of Energy

There was an error working with the wiki: Code[1]

Directory:Atmospheric Electrostatic Energy

Directory:Dark Energy

There was an error working with the wiki: Code[2]


There was an error working with the wiki: Code[3]

There was an error working with the wiki: Code[4]

Directory:Electric Universe


Directory:Fractal Antennas as an Energy Source


Directory:Electromagnetic (overunity)

There was an error working with the wiki: Code[5] | News:2006-2008:Electromagnetic

Directory:Motor-Generator Self-Looped with Usable Energy Left Over

There was an error working with the wiki: Code[6]

Directory:Linear Magnet Accelerators

Directory:Pyramid Power

Directory:Quantum Particles

PowerPedia:Tunnel Magneoresistance -- the TMR Effect

Directory:Solid State

There was an error working with the wiki: Code[7]

Directory:Toroidal Power

Directory:Marko Rodin Coil / Torus / Motor

Directory:Power from Ambient Electromagnetic Radiation

Directory:Gravity Motors


There was an error working with the wiki: Code[8]

There was an error working with the wiki: Code[1]