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Author Topic: Homopolar Generators (N-Machine) by Bruce de Palma  (Read 291201 times)

TinselKoala

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Re: Homopolar Generators (N-Machine) by Bruce de Palma
« Reply #240 on: February 25, 2014, 04:23:00 PM »
You're welcome. I've seen the working prototype of that machine, and it works a treat.

Tesla also had some interesting ideas for homopolar dynamos.


forest

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Re: Homopolar Generators (N-Machine) by Bruce de Palma
« Reply #241 on: February 25, 2014, 04:27:09 PM »
TinselKoala


I'm looking for someone who can help me to answer simple question about DC-DC converter ordinary old boost type. Do you know DC-DC converters or maybe do you know somebody here who has experience practically AND theoretically in that topic ?

keithturtle

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Re: Homopolar Generators (N-Machine) by Bruce de Palma
« Reply #242 on: February 25, 2014, 04:33:19 PM »
You're welcome. I've seen the working prototype of that machine, and it works a treat.

Tesla also had some interesting ideas for homopolar dynamos.
Indeed, his US406968 design appears to have had true OU potential, but look at the date - 1889.  His polyphase works earned him his living.   Why did he abandon something that might have COP >1?

I will try to find out by building this stuff, as my time, tools, tenacity, talent and turtlebuks allow. That's a lot of T's

Turtle, slow

TinselKoala

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Re: Homopolar Generators (N-Machine) by Bruce de Palma
« Reply #243 on: February 25, 2014, 04:35:42 PM »
TinselKoala


I'm looking for someone who can help me to answer simple question about DC-DC converter ordinary old boost type. Do you know DC-DC converters or maybe do you know somebody here who has experience practically AND theoretically in that topic ?

I'm not much of a theoretician, I mostly just do actual builds and I analyze them according to the theory that makes the most sense to me, that is, conventional electrical theory. However, I'm sure that if you post your question in a thread here, you'll get all kinds of interesting analyses. Some of them will be more "correct" than others, though.
I don't want to mention any names, but there are some real experts reading and posting here, so you will probably get the information you need, from them, or at least references that you can study.
Sorry I can't be more help, good luck in your search. I'd still like to see the question, though.
--TK

forest

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Re: Homopolar Generators (N-Machine) by Bruce de Palma
« Reply #244 on: February 25, 2014, 04:47:26 PM »
Here is the question : ordinary boost converter with no load but only a bufer capacitor on output - as you see nothing new.
However what I need to know is the voltage in output capacitor after single cycle of switching : ton + toff.
We know that output cap is charged first to the power source voltage minus voltage drop on diode, what would be the final voltage on that capacitor after ton and then toff passed ? Of course power source voltage is given, also inductance of coil, ton and toff also.


tim123

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Re: Homopolar Generators (N-Machine) by Bruce de Palma
« Reply #245 on: February 25, 2014, 05:26:11 PM »
Yes.   With two identical 12" disks with a large copper plumbing cap [hub] soldered to the center of each, I can add an array of magnets in the middle with polarity facing each disk differently; the rims will allow a band of Cu to attach the disks and complete the circuit, pick off power at each hub.

I think that the connection at the rim between the 2 disks would have to be a brush - or a conducting belt as in the Hathaway patent...
From what i understand - if it's rotating with the disks - then nothing gets generated. I could be wrong...

Quote
So, copper tube conducts the field current, creating a field without steel backing?   Will that truly be a uniform field?  Why tube over solid conductor?

It doesn't have to be tube - any conductor will do - but for induction heating tube's often used because of the high-frequencies - and skin effect - and because you can run water thru the tubes to cool them. They don't use ferro-stuff to enhance the field - because the freq's too high...

TBH - it's probably a bad idea. Last thing you want is red-hot copper plates... :) lol.

Quote
There are some sea turtles that can swim up to 35 miles per hour...
ask.com

;)
Tim

TinselKoala

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Re: Homopolar Generators (N-Machine) by Bruce de Palma
« Reply #246 on: February 25, 2014, 05:34:57 PM »
Well, I'd just make the measurement of the voltage on the cap after the single cycle. I'm sure that it can be calculated though, just not by me (until I see the appropriate formulae).

These references may contain the equations you need:

http://www.maximintegrated.com/app-notes/index.mvp/id/2031
http://www.torex.co.jp/english/news/item/MKT-08E-6DCDC2.pdf

(and 3 meters/second is about 6.7 miles per hour; 35 mph is about 15.6 m/sec, a truly fast turtle)

mariuscivic

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Re: Homopolar Generators (N-Machine) by Bruce de Palma
« Reply #247 on: April 04, 2014, 08:31:25 PM »
Hi guys!

Nothing happening here for a while...so i'll give it a try.
I have assembled an small HPG and after some tests , found some output under the spining magnet with a normal coil.

Here is the vid  https://www.youtube.com/watch?v=B92Xxx_fW28&feature=youtu.be

The smaller magnet is a 30 mm diam. radialy magnetised working as a pulse motor.
The bigger magnet is a 60mm diam. axialy magnetised. Under this one there is a coil that gives some output.
From what I know there should not be any kind of output under that magnet. What do you think?

Magluvin

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Re: Homopolar Generators (N-Machine) by Bruce de Palma
« Reply #248 on: April 05, 2014, 01:25:11 AM »
Hi guys!

Nothing happening here for a while...so i'll give it a try.
I have assembled an small HPG and after some tests , found some output under the spining magnet with a normal coil.

Here is the vid  https://www.youtube.com/watch?v=B92Xxx_fW28&feature=youtu.be

The smaller magnet is a 30 mm diam. radialy magnetised working as a pulse motor.
The bigger magnet is a 60mm diam. axialy magnetised. Under this one there is a coil that gives some output.
From what I know there should not be any kind of output under that magnet. What do you think?

Hey Marius

I wouldnt think there would be output in that config either.  Even if the flux lines are moving with the magnet, the field is cutting both sides of the coil at the same time. Try turning the coil 90deg so just 1 side of the coil is close to the mag. Even try a core to further isolate that one side of the coil to the dense flux close to the mags surface.  Just for giggles.  Im assuming there will be little output then also. If not, then I would try a ceramic magnet next, to eliminate the possibility of the neo mags coating causing flux dragging due to lenz in the coating. there may be some serious losses due to the coating in any build honestly.  I know non coated neos can be had. Just use a urethane to coat, or paint.  Ive seen plastic coated neos.

There could be some inconsistency in the mags field strength and that could be causing the output with fluctuations as it spins.  Lots of mags are inconsistent even from the same batch.

I had learned of those inconsistencies back working on the Whipmag over at Fizzx.org  Tk was the one that discovered these issues.  I had big issues with it in my Magluvin Magnet Motor MMM. Poles were not always centered, different field strengths. Things that adjustments to fix the problems threw off balance, etc.  Big headache.

If someone were to attempt an all magnet motor, or any motor with many magnets, they should buy many mags and design a setup to find matched sets from the bunch. Similar to matched set output transistors in quality amplifiers.  Even if we are just hoping for a weak , very slow, but running motor, such imbalances can screw everything up, and we may never see a runner, just because magnets were not somewhere near perfect. Or like in a bicycle hub motor, if all the magnets were consistent, there would be better efficiency. ;)

Mags
 

synchro1

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Re: Homopolar Generators (N-Machine) by Bruce de Palma
« Reply #249 on: April 05, 2014, 03:19:37 AM »
Hi guys!

Nothing happening here for a while...so i'll give it a try.
I have assembled an small HPG and after some tests , found some output under the spining magnet with a normal coil.

Here is the vid  https://www.youtube.com/watch?v=B92Xxx_fW28&feature=youtu.be

The smaller magnet is a 30 mm diam. radialy magnetised working as a pulse motor.
The bigger magnet is a 60mm diam. axialy magnetised. Under this one there is a coil that gives some output.
From what I know there should not be any kind of output under that magnet. What do you think?


Why not try and get some balance magnets to spin around at resonance like Jerry Bayles?


Here's his oscillating satellies with one disk on the right side; Side makes a difference!
 


http://www.youtube.com/results?search_query=Jerry+Bayles

ashg

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Re: Homopolar Generators (N-Machine) by Bruce de Palma
« Reply #250 on: April 05, 2014, 12:42:23 PM »
To all the current researchers of the N-Machine:
 
We did an investor funded project on this topic in the late 80's and built both a sophisticated liquid metal brushed Tewari type design (10kW) and then a replication of the Sunburst (2.5kW) with copper leaf brushes to get the resistance down.
 
There are many debates on the question of whether the field remains stationary or not and we proved conclusively that the field has inertial properties, meaning it stays stationary unless "compelled" to move by the geometrical shape of spining reluctance paths. The field will remain stationary enough to be used for reactionless drives hence the term "Inertial Field Generator" that we coined.
 
To cut a long story short we proved the Sunburst test results of Prof Kinchloe as being real and are a direct result of the geometry of the external stationary part of the circuit regardless of whether the field source (electromagnet) is spining or not. This was in fact shown (but not obvious until we discovered it) in one of the video demo's given by Bruce DePalma at a confernec with Mr Tewari, where the large output cables were moved by someone and you could hear the machine drive motor speed up and comments about output power increase.  This is exactly what we found by chance in our testing and is what decreases the back torque and allows an over-unity result. Lenz's law says nothing about the direction of magnetic forces and can clearly be violated under specific conditions. Unfortunately Bruce depalma died without discovering why the N-Machine did what it did and Adam Trombly who built a sophisticated high power machine suffered under a gag order. A lot of people went to ground as a result but its time to put this out there now there is interest again.
 
There are significant technical challenges in making this a viable generation technology but someone may be able to take it much further than we all could.  I have a whole bunch of Homopolar machine parts, rotor, brushes, electromagnet winding Kevlar encased and extensive data files with test results  to give away to a good home if someone is interested and seriously into this topic. Cost will be in freight as most parts are very heavy.
 
Contact me if you are interested and good luck with all the great work being done. Often we discover the most profound just by chance.
 
Ashg
 

ashg

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Re: Homopolar Generators (N-Machine) by Bruce de Palma
« Reply #251 on: April 05, 2014, 12:46:25 PM »
The two Homoplar machines from late 1980's project. They still exist but Sunburst replication was only one that proved sucessful.
 
Ashg

Paul-R

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Re: Homopolar Generators (N-Machine) by Bruce de Palma
« Reply #252 on: April 05, 2014, 04:10:25 PM »
Lenz's law says nothing about the direction of magnetic forces...

I thought that the essence is the word "opposes".

"An induced emf always gives rise to a current whose magnetic field opposes the original change in magnetic flux".

synchro1

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Re: Homopolar Generators (N-Machine) by Bruce de Palma
« Reply #253 on: April 05, 2014, 06:36:15 PM »
Jerry Bayles points out that the neo magnet coating is a mixture of copper and nickle, and acts like a copper disk attached to the magnet itself. This "Copper Skin" builds a charge on the surface that has no place to go until it reaches a potential to carry it across "Energyy Space".

scianto

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Re: Homopolar Generators (N-Machine) by Bruce de Palma
« Reply #254 on: April 05, 2014, 09:31:27 PM »
I always wanted to make research with Tewari / Bruce de Palma kind of generator, but the machinery and the need for precise machinery work was over my achievement.