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Author Topic: Simple Lenzless Generator  (Read 17103 times)

Neo-X

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Simple Lenzless Generator
« on: March 06, 2013, 10:54:24 AM »
Hellow 2 all.. I was currious why nobody build a faraday disc generator where the disc is made of spiral conductor rather than solid disc? I think it will  work the same as solid disc but with higher voltage. It also greatly reduces the eddy current and doesnt need many brushes on its rim (one brush i think is enough) which reduces greatly the friction.

Doug1

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Re: Simple Lenzless Generator
« Reply #1 on: March 07, 2013, 03:53:19 PM »
You need to read Teslas notes on the device more closely. Search a little bit and find the photo of the giant unit used back in the past used in the to develop the A bomb materials.Now it's a yard orniment someplace. Very little details about it's construction can be found, well none to be exact. One or two studies have been done on small table top models. Even they could not resist changing the design before studying the original.

Bruce_TPU

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Re: Simple Lenzless Generator
« Reply #2 on: March 07, 2013, 04:21:39 PM »
Hellow 2 all.. I was currious why nobody build a faraday disc generator where the disc is made of spiral conductor rather than solid disc? I think it will  work the same as solid disc but with higher voltage. It also greatly reduces the eddy current and doesnt need many brushes on its rim (one brush i think is enough) which reduces greatly the friction.
Hi Neo-X,
 
I believe that you are on the right track.  I started a thread some time ago on the subject.  The only thing different that I would add to what I have written, is that I would use LITZ wire for the pancake. 
 
http://www.overunity.com/8934/bruces-discovery-teslas-missing-link-for-his-unipolar-generator/msg233712/#msg233712
 
Cheers,
 
Bruce

DreamThinkBuild

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Re: Simple Lenzless Generator
« Reply #3 on: March 07, 2013, 05:28:07 PM »
Hi Bruce,

There was another patent that recently popped up.

US8288910 - Multi-winding homopolar electric machine
http://www.google.com/patents/US8288910

Quote
...where N corresponds to the number of turns of the wire about the cylinder 24. By increasing the number of turns, the voltage and speed can be made to essentially any value. For example, if the present invention is utilized as a generator that must supply 5V to a load, with 1000 turns of wire the speed required to develop 5V would be 1000 times less than a single-turn prior art homopolar machine. If the operating parameters of the prior art homopolar machine required 1000 RPMs to produce 5V, the present invention would require 1 RPM for the same voltage output. The corresponding counter torque would also be additive, causing the rotation to require higher torque at 1 RPM...

Neo-X

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Re: Simple Lenzless Generator
« Reply #4 on: March 07, 2013, 06:38:50 PM »
@bruce_tpu I like your thread.. Full of usefull ideas and information. On the picture i like the your first idea. I think that was the best way to draw the current out of the disc. With that setup friction will become greatly reduce and the brush ware will be lessen.

Neo-X

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Re: Simple Lenzless Generator
« Reply #5 on: March 08, 2013, 10:18:00 AM »
Bruce_tpu what would you think about this one? Suppose i have spiral conductor and neomagnet attached to one side and insulated to each other but electrically connected from the shaft. The brush in the spiral conductor is linked to the brush of the neomagnet.  Then suppose we rotate it, the induced voltage in spiral conductor is much higher than the induced voltage in the neomagnet and causing the current to flow from spiral conductor, then to the shaft, then to the neomagnet, then to the brush and then back again to the spiral conductor.  According to faraday law and tesla, the spiral conductor doesnt produce lenz effect if both neomagnet and spiral conductor attached to each other or simultanously rotating. Neglecting the eddy current, the setup will not produce lenz effect but the current is flowing in the neomagnet making the neomagnet act as a motor producing a torque that aid the applied torque. So the rotation will increase as more current flow to the neomagnet and accelerating it untill the resistane stop it from accelerating.. See the idea A.. In idea B it was the same operation on idea A but this time it was using solid disc conductor and the brush from neomagnet was moved to the center radius of neomaget.

I forgot in idea A the brush doesnt need since both spiral disc and neomagnet are attached to each other and rotating at the same speed so we can connect both of them directly at the rim.
« Last Edit: March 08, 2013, 04:25:00 PM by Neo-X »

b_rads

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Re: Simple Lenzless Generator
« Reply #6 on: March 08, 2013, 06:32:57 PM »
@All:
This is something that might be of interest, the links below contain some information about the drag on the Faraday Disk and a possible solution of minimizing that drag.
http://callowayengines.com/msg50.htm
http://callowayengines.com/msg51.htm
On the second link, the author suggests making a capacitor on the outer rim of the coil/copper for harvesting the energy produced.
 :)

Bruce_TPU

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Re: Simple Lenzless Generator
« Reply #7 on: March 08, 2013, 07:44:22 PM »
Bruce_tpu what would you think about this one? Suppose i have spiral conductor and neomagnet attached to one side and insulated to each other but electrically connected from the shaft. The brush in the spiral conductor is linked to the brush of the neomagnet.  Then suppose we rotate it, the induced voltage in spiral conductor is much higher than the induced voltage in the neomagnet and causing the current to flow from spiral conductor, then to the shaft, then to the neomagnet, then to the brush and then back again to the spiral conductor.  According to faraday law and tesla, the spiral conductor doesnt produce lenz effect if both neomagnet and spiral conductor attached to each other or simultanously rotating. Neglecting the eddy current, the setup will not produce lenz effect but the current is flowing in the neomagnet making the neomagnet act as a motor producing a torque that aid the applied torque. So the rotation will increase as more current flow to the neomagnet and accelerating it untill the resistane stop it from accelerating.. See the idea A.. In idea B it was the same operation on idea A but this time it was using solid disc conductor and the brush from neomagnet was moved to the center radius of neomaget.

I forgot in idea A the brush doesnt need since both spiral disc and neomagnet are attached to each other and rotating at the same speed so we can connect both of them directly at the rim.

I like your thinking.  I am just not hooked on the spiral disc part, but rather I am hooked on the spiral tesla pancake coil.  With the disc you will produce a huge amount of amperage, but next to no voltage.  My idea of of using LITZ in a tesla pancake coil, would multiply the magnetic movement of electrons, increase the voltage, and possibly more, IMHO.  I had built all of the pancake coils some time ago, but before I understood the benefits of using litz in this situation, so I abandoned those built of very thick wire.
I encourage  you to build your idea and see.  That is the only real way of knowing. 
 
Cheers,
 
Bruce

phoneboy

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Re: Simple Lenzless Generator
« Reply #8 on: March 09, 2013, 02:34:57 AM »
@ Neo-X, you should take a look at what the borderlands group did a while back.  They alternated the fields of the magnets on each side of the disc and were able to get an ac output.  With that you could get away without using brushes @ all.

Neo-X

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Re: Simple Lenzless Generator
« Reply #9 on: March 10, 2013, 08:04:27 PM »
@phoneboy

How it could draw the current from the solid copper disc without brushes?