Flynn's Parallel Path

[jake]

No, he claims it takes exactly the same amount of flux in each electromagnet as each of the perminent magnets. The flux in each electromagnet must match (be equal to) the flux in each perm magnet. In other words 1+1+1+1 = 4. 1+1 electro (steering the perminent) and 1+1 perminent. End result is two electros controlling 2 perms = 4 - loss = 3.whatever. (no multiplication....addition)

This is what he claims, but when you look at the fourth figure in his experiment, wouldn't you expect to see 421 grams of force (or less)?  He says he is steering the flux with less input that what it would take to create the flux - which would mean that figure 4 (the one with 1091 grams) should have less force than figure 1 (421 grams).  Do you follow what I'm saying?  He is producing 1091 grams in figure 4, which is much more flux than the equivalent of one of the magnets (421 grams).

Actually maybe it is Tim Harwood that says this and not Flynn.


I just re-read from the Flynn site - http://www.flynnresearch.net/tests_&_results.htm - his analysis is pretty much what I was coming up with.  He acknowledges that you are losing a lot of the flux being produced in the electormagnet to achieve the steering.  The Flynn analyis looks good to me.  He acknowledges a 31% loss in the electrical part of the circuit in his analysis.

I'm not sure there. Does running a piece of metal through a magnetic field produce eddy currents? Because the only thing on the rotor in my motor would be metal. I'm not being sarcastic, I really don't know. Supposedly to you, but not to me. I have build it and proved it to my self, and that is all I need for now. I know it works.

I'm not sure whether to answer this, since you do all your thinking on your own - but I will.  Running a piece of metal through a magnetic field is exactly what causes eddy currents (anything that is electrically conductive would be susceptible to eddy currents).

Your idea of parking the flynn coil between 2 rotors seems valid enough, but it does prohibit putting multiple coils around the rotor.  I'm not sure why you would have to tie the rotors together.  The more mechanical things you can remove from the design the better off you will be (in my opinion)  Do the magic with electricity.

I would say that reading everything on peswiki.com about the flynn stuff is a must before making a serious attempt at building anything.  There is good information there as to what has worked and what has not worked.

And also remember, I have done the test and I am getting the extra pull from the perm magnents...more torque

Just remember - you have to get away from that extra force to produce a net torque!

[Liberty]

Quote from Jake:

"Running a piece of metal through a magnetic field is exactly what causes eddy currents (anything that is electrically conductive would be susceptible to eddy currents)."

Jake, would motion between two magnets cause eddy currents in the magnets?

[jake]

would motion between two magnets cause eddy currents in the magnets?

I don't know.

I think if the magnet is electrically conductive and it actually intersects other flux paths eddy currents must occur, but the short answer is I don't know.

[Liberty]

My guess is that since magnets emit a magnetic field, the field state within the magnet is constant, and therefore there are no changing magnetic fields strong enough to generate eddy currents within a magnet.  If a weak magnet was in a strong magnetic field, I think that it is possible to induce eddy currents within the weaker magnet while being subjected to a stronger changing magnetic field.

I have not noticed any effects of eddy currents in my magnet motor as it runs cool as a cucumber.  This is how I came up with the above conclusion.

Liberty

[jake]

You could very well be right that if the magnets are equal the fields somehow don't change within the magnet.

I think in any case, the eddy currents (if any) would be dwarfed by the other forces in the scenario you describe.

Eddy currents are a big deal in "traditional" motors, which is why you don't see normal production motors without laminated armatures.  Old solid rotor motors would be 10's of points lower in efficiency than the 90-96% efficient motors commonly used today.