Switched reluctance Motor/Generator - Kromrey

aussietony

Switched reluctance Motor/Generator - Kromrey
«  »Last edited
Hi Folks,

My area of investigation centers on pulse motors, for the past six years on the relationship between induction and reluctance.

Let me explain further, consider a horseshoe magnet, now wind a coil around a nail, short circuit the coil, now place the nail
near the magnet, consider what happens next. Does the B field from the magnet (Attractive Reluctance) counter the lenz effect created by the current induced into the wire?

This is exactly where I started except I center pivoted the nail in the B field.

Take a look at the attached Raymond Kromreys Patent from 1968.  (Which I built and works exactly as he found)

Now consider what would happen if when the nail stops you then energise the coil around the nail to oppose the magnets B field..
The advantage is that the North and the South are both used as opposing force.
(In my opinion better than just opposing the North fields as in a Bedini pulse motor)

You then have a simple, permanent magnet pulse motor.

Join the two ideas you have a Pulse motor / Generator.

Does it work, well yes I have found it does.

This is the basis of my designs, initially with slip rings and brushes as per Kromrey but later moving to designs without them.

Has anyone else been working on anything along these lines?
I would be very interested to hear your views.

Cheers Tony






Apoc4lypse

Re: Switched reluctance Motor/Generator - Kromrey
« Reply #1,  »Last edited
Quote
Join the two ideas you have a Pulse motor / Generator.
Sort of what I'm working on but I had no idea who kromrey was till I clicked on this, I'm not very good at reading schematics, I prefer diagrams that indicate where components go in a perspective format so I'm not so sure what I'm looking at there in the picture...

This is why I'm trying to come up with a stator design that will work for this idea. well technically I'm trying to design two different stators, one is for the motor the other is for the generator.

Ironically enough I was considering what current is and one of faradays experiments when the idea came to me, but I was actually unknowingly exploring the basis for how a toroidal power unit works at the time, and as I was drawing different coil ideas to possibly test out, I flipped past an old idea I had that was using magnets alone to run a motor and kind of led me to that idea.

Matt Watts

Re: Switched reluctance Motor/Generator - Kromrey
« Reply #2,  »
Not sure if aussietony will return to this topic sometime this year, but if he does, I'd really like to get his definition of inductance or inducing.  Been struggling with this concept for weeks now.

Apoc4lypse

Re: Switched reluctance Motor/Generator - Kromrey
« Reply #3,  »Last edited
Did some minor simple experimenting today, when you move a magnet in one direction over a coil or past a coil the magnetic field the coil creates opposes the magnetic field that is inducing the current as lenz law states. This is why a generator becomes harder to turn when more current starts to flow through the induction coils so the faster you turn the generator the greater the magnetic field in the induction coils pushing back on the magnet will be. This is because the current created flows in a way that generates the opposite magnetic field to the magnet in the coil if your only generating current in one direction in the coil with the magnet. It has to do with the Right Hand Rule and also which pole of the magnet your using to induce the current and the direction your moving the magnet across the coil wires.

https://www.khanacademy.org/science/physics/magnetic-forces-and-magnetic-fields/magnetic-field-current-carrying-wire/v/magnetism-12-induced-current-in-a-wire

I like this video because it simplifies the complex formulas related to calculating the induced EMF of a coil down to just one wire at a time and the Guass level of the Magnet but in Tesla's and the velocity the magnet is moving at in m/s and the length of wire it passes over in meters.

EMF = l * v * B

length * velocity * B field (Teslas)

If you use a North side of the magnet facing the wire, current flows one way, if you use the South side of the magnet the current will flow the other way due to a charge difference being created across the length of the wire and the direction of that charge is dependent on which pole of the magnet your using and the direction its moving.

Then if you take that simple idea and use a Coil, its the same idea, so when a Magnet passes over the top of the coil, current will flow one way as it passes the wires that are in one direction because of the direction of the coil wind CC or CW. Then as it passes over the second wall of the coil the current changes directions because the wire is now facing the other direction down the face of the magnet.

Flip the magnet over and the effect is reversed so both sides of the coil switch the directions of charge difference created on the wires in the coil.

When you slide the magnet along the length of the coil because the B field is hitting one side of the coil more strongly than the other side the current being generated flows in one direction until you reach the end of the coil and the entire time you were pushing the magnet up the coil the coil was generating a magnetic field that opposes the direction you were pushing the magnet.

Then when you pass the end of the coil due to the magnetic field still existing in the coil and its "shooting" a magnetic field out the end your passing that opposes the magnets orientation, the two fields hit each other that are opposing one another and sends it back the other way down the center of the coil causing a temporary current spike in the opposite direction to the current you just made as the field now tries to realign itself with the magnets magnetic field basically switching the field poles in the induction coils magnetic field so it can try to attract to the magnet that is now at the end of the coil and there are no magnets inducing the current in the other direction to keep the current flowing that way anymore.

At least that's my understanding of it... I wish I had a guass meter to see what it reads in terms of pole direction and strength at the end of the coil when this happens to get an idea of what exactly is going on there with the Pole directions and the guass readings.

Matt Watts

Re: Switched reluctance Motor/Generator - Kromrey
« Reply #4,  »Last edited
Take two pieces of wire, bifilar; wrap them around an air-core bobbin, then run a magnet past the coil.  Now check the voltage between the two pieces of wire.  What you'll discover is the permanent magnet discharged something BETWEEN the two pieces of wire and there is a real voltage there.  No Lenz though.  So how can this be?

My take is this example is absolutely crucial to understanding what induction is.  I think the magnetic field of the discharging permanent magnet is converted from magnetic to dielectric and the dielectric (or electrostatic potential) is now trapped between the two windings like a capacitor.

But who knows, I make up crazy crap all the time and declare it as fact.   :-P  You know, more of that pink unicorn pixie dust fart stuff.   :lol:

Apoc4lypse

Re: Switched reluctance Motor/Generator - Kromrey
« Reply #5,  »Last edited
Hmm... not sure, I haven't really studied bifilars much yet or taken into account what a magnet does to them to really comment on that... I have a few ideas though but I haven't experimented on bifilars or even seen any experiments done on them... also what way did the magnet pass it?

I'm curious what a multi layered bifilar coil would do though but I imagine that would be difficult to wind correctly.

Lenz Law might not apply to that kind of a configuration completely, or it still does but its a misunderstanding of how current travels through a wire or a misunderstanding of lenz law or the law needs to be rewritten... honestly I don't even know much about lenz law, I just know about the interactions between a magnet passing by 1 wire I put lenz law in the post because at the time I was reading about it. As I've said you guys have been at this longer than me. Although I kind of agree with the capacitor hypothesis.

Matt Watts

Re: Switched reluctance Motor/Generator - Kromrey
« Reply #6,  »
Two kinds of fields Apoc, magnetic & dielectric.  When you think of magnetic, associate that with current, amps.  When you think dielectric, associate that with voltage or potential.

A permanent magnet is continually discharging--I think even Cycle would agree to that.  Of course he would say it's recovering its energy from the quantum vacuum, but who really cares as long as it works right.

A coil is more than just an inductor.  Between any two segments of conductors is dielectric (insulation) and this is where the dielectric field lives.  When you have a single wire (conductor) wrapped as a coil, the dielectric field gets in between the turns of windings, but since it's a single conductor, it's shorted out.  Shorted out means there will be a current flow and a current flow means magnetism, magnetic field.  This is where Lenz Law comes from.  You just placed a dielectric field between turns of a shorted out winding, so what do you expect to have happen?  Obviously a magnetic field will be produced and Lenz says this magnetic field will always oppose the initial magnetic field that created it.  How do you fix that?

Don't short the damn conductor out.  Use two (or more) separate windings and collect the voltage between them.  Sounds easy in theory, but geometrically, this gets a little difficult to do.  What you really want is a whole bunch of capacitors--they're great for storing dielectric fields.

You see, only a single turn coil is truly an inductor.  Once you add more turns, now it's an inductor and capacitor.  This is where things get messy.  You take a simple transformer and really inspect what is going on and you soon find out this device is far more complex than the books tell you.  They don't mention dielectric fields, voltage between turns, etc.  They talk about turns ratios and crap that just happens to be so, but never revealing how it all works.  This is why I'm trying to get back to the very fundamental basics that guys like Mr. Tesla clearly understood.  I think he understood it so well, he probably presumed it was obvious and is why most people are always guessing what is going on in his patents.  It's the basic stuff that matters and without that, everything on top of it is truly a mystery.

Anyway, I'm going to figure this stuff out and if you speak my language, you'll figure it out too.  It's just a matter of time.

Apoc4lypse

Re: Switched reluctance Motor/Generator - Kromrey
« Reply #7,  »
Hmm, kind of like the transformer experiment where Faraday put a DC current through one coil on one side of the transformer and then had a secondary coil on the other. Current spikes when connecting and disconnecting the secondary coil to a galvanometer; a positive spike when connecting and a negative spike when disconnecting, but no steady current flow. Sort of like the secondary coil acted as a capacitor that charged while not being connected to anything as the core became magnetized and when connected to something it released the charge, but when being disconnected it got a negative current spike?

Matt Watts

Re: Switched reluctance Motor/Generator - Kromrey
« Reply #8,  »
It's all energy storage and transfer.  You can store energy magnetically or dielectrically, then transfer between the two forms.  You pay to create the field, but you don't have to pay to retain the field.

Apoc4lypse

Re: Switched reluctance Motor/Generator - Kromrey
« Reply #9,  »
Ok, I got a question related to an idea I'm working on, what happens again when you have a regular coil and magnets pass by it while its open or not shorted, what happens when you still have the magnets moving passed it and then short the coil? Does it discharge what ever has been building up in it as you stated above? Or will that only happen in a bifilar coil? Would a normally wound coil store anything? When its shorted does it act like a capacitor and discharge whatever has built up inside it?

Piero

Re: Switched reluctance Motor/Generator - Kromrey
« Reply #10,  »
Lt Col Bearden  says   that  Potential  and  Energy   as  defined   seem   to  be  the  same thing
but  in  reaity  they are not
he  says  that  Energy   we experiment  is  realized   Potential

Apoc4lypse

Re: Switched reluctance Motor/Generator - Kromrey
« Reply #11,  »
Wow this is a good video on generator/motor designs (Robert Adams Design Featured)... https://www.youtube.com/watch?v=J2bPDDWqSvM

This design looks exactly like the first one I was working on too but I was trying to find a way to switch the electromagnets on and off without a commutator...

onepower

Re: Switched reluctance Motor/Generator - Kromrey
« Reply #12,  »Last edited
Piero
Quote
Lt Col Bearden  says   that  Potential  and  Energy   as  defined   seem   to  be  the  same thing
but  in  reaity  they are not, he  says  that  Energy   we experiment  is  realized   Potential
If we know all particles and there fields are in perpetual motion everywhere in the universe in everything and if energy is the capacity to perform work (Force x Distance which is motion) then everything is ... Energy. As well nobody owns this motion thus it is inherently free... Free Energy.

Potential is simply a convenient way to express the notion of a difference in potential or condition which relates to the extent of internal motion as energy which may cause an external motion which is also energy. As above so below and everything has potential just as it inherently has energy.

James Clerk Maxwell gave us the solution in the form of Maxwell's Demon. If all bodies inherently contain energy in the form of internal motion then it is simply a matter of coordinating these internal motions to produce an external motion... preferably a field change.

aussietony

Re: Switched reluctance Motor/Generator - Kromrey
« Reply #13,  »
Quote from Apoc4lypse on April 5th, 06:51 PM
Wow this is a good video on generator/motor designs (Robert Adams Design Featured)... https://www.youtube.com/watch?v=J2bPDDWqSvM

This design looks exactly like the first one I was working on too but I was trying to find a way to switch the electromagnets on and off without a commutator...
If you contact me, I will help you with an encoder you can easily build to enable you to switch your electromagnets, I have a few designs, just drop me a line maybe with a short description of the number of coils etc.
cheers
aussietony
amigas449@gmail dot com

Apoc4lypse

Re: Switched reluctance Motor/Generator - Kromrey
« Reply #14,  »
Sounds good, I'm still working on the design for this, plus exploring some other ideas on how to get the motor part to function better by using a different motor design than in that video.