Author Topic: My best at homopolar design (Read 13818 times)

angryScientist · « **on:** November 21, 2009, 07:26:12 PM »

Here is an idea I came up with a couple decades ago. Just been kickn' round my head for a while.
It looks better in my head but here's the gist.

angryScientist · « **Reply #1 on:** November 21, 2009, 08:25:08 PM »

As you can see the magnetic flux goes through the end plates in different directions. The connections between the two end plates is made at the periphery through segments which prevents current from flowing in any direction but between the two plates to reduce loss.

The main benefit, and my entire reasoning behind this idea, is the brushes used for removing the power are placed on the ends of the shaft there by reducing the ware and complexity of the brushes. So one end of the shaft will be positive and the other end negative.

angryScientist · « **Reply #2 on:** November 21, 2009, 10:45:05 PM »

Four separate magnets in the shape of a section of a toroid. Could be a loop of pipe with section cut out then filled with wire.

Creativity · « **Reply #3 on:** November 23, 2009, 03:57:03 PM »

yhm maybe it will help if u draw the forces, because i don't see it working as u say. Or draw a path of the current, thx!

angryScientist · « **Reply #4 on:** November 23, 2009, 06:45:26 PM »

Maybe this will help.

innovation_station · « **Reply #5 on:** November 23, 2009, 07:22:20 PM »

great work im sorry i never read it all

here is a tip ...

try it .. you will see anti gravity ...

all you do i scroll up and down on this page and look at your picture

it radiates ....

if ya dont get it i will explain ...

just scroll the page up and down it flickers your picture ...

nature is talking you aint seeing!!!

for your design try to section the disc properly with the math of creation be carful

yes if you make it proper this is a mechanical "G" the real one is motionless!!

i can point this out in the pattends if need be

w814

pic post #2

Creativity · « **Reply #6 on:** November 23, 2009, 08:20:46 PM »

OK looks good to me

only a small concern about the life of the magnet.Like poles r so close that it may decrease the magnetism over time.

angryScientist · « **Reply #7 on:** November 23, 2009, 09:38:58 PM »

Thanks guys.
Very uplifting hearing your compliments. I just might make it though the day.

Quote from: Creativity on November 23, 2009, 08:20:46 PM

OK looks good to me only a small concern about the life of the magnet.Like poles r so close that it may decrease the magnetism over time.

Electromagnets could be used. They could even be put in series with the armature so all the current that is generated also flows through the magnets.

I've heard some strange stories about big homopolar welding machines used in shipyards. Like tools just vanishing, ect... I wonder if it's true.

Creativity · « **Reply #8 on:** November 23, 2009, 09:46:50 PM »

Quote from: angryScientist on November 23, 2009, 09:38:58 PM

I've heard some strange stories about big homopolar welding machines used in shipyards. Like tools just vanishing, ect... I wonder if it's true.

Depends on the source..

from my own experience i saw my tools vanishing just to come back during the least expected moments, just when they were not needed . No welding machines around, just a big mess

angryScientist · « **Reply #9 on:** December 13, 2009, 12:38:59 AM »

Here is an extension of the above idea.

In this design permanent magnets are use. They are contained within the disk assembly and rotate with it. The current flow through the disks are the same as the above design.

The benefit of only one moving part and brushes placed where they receive the least wear are the same as the above design as well.

Hypercom · « **Reply #10 on:** October 03, 2010, 03:38:04 PM »

Hi

I have a doubt on the position of the brushes, you can?

Hypercom · « **Reply #11 on:** October 03, 2010, 03:42:20 PM »

Hi

The correct position is that?

Hypercom · « **Reply #12 on:** October 03, 2010, 04:21:41 PM »

Hi

This configuration is correct?

Magluvin · « **Reply #13 on:** October 03, 2010, 08:07:03 PM »

Somthin just got me thinking here

If in the pic above, on the left mag, if we put a conductive disc on the right side of that mag, the current should be in the same direction as the disc on the other side of the mag on the left. So if we have a disc on both sides of each mag, the dual discs should produce 2 times as much current as just one. Now if we have our pairs of discs connected on the outer edge as a whole, if there was a counter emf produced on the outer edge connection, the doubling of current with the extra discs should make a difference.

Just thinking

Mags

angryScientist · « **Reply #14 on:** October 03, 2010, 08:32:52 PM »

Hi there Hypercom,

I did not want to use any brushes on the disks AT ALL. I don't like brushes. They wear out and they cause drag because of friction. If I could think of a way to eliminate the brushes completely I would have. (In fact I did but that concept isn't presented on this page.)

If you want to spin the generator extremely fast then brushes become a huge problem. If you wanted to make the disks of really large diameter, the problem of brushes increases exponentially.

We have to take current from the center of the disks anyway. That is where the friction will be least. The difference in speed between the brush and the place it's contacting is the least at the very center of the disk.

The idea, in my mind, is to rigidly connect two disks at their periphery. That way there is no friction between parts that have to be in contact and must move at high speeds. They move together. No friction between them. No brushes connecting high speed parts.

Now about your three pictures above;
First one. The current is flowing through the shaft. Connection to external circuit is made brushes at periphery of disks. Will work but brushes at those positions will introduce a lot of drag.

Second picture. (reproduction of my picture.) The bolts serve a dual purpose. They connect the disks rigidly together and they conduct current. Current flows from the edge of one disk through the bolts to the edge of the second disk. The plus and minus you inserted would be the electrical potential that would be seen on the bolts.

Third picture. You could remove the bolts but why? The disks will both have to spin in the same direction anyway. Your additional brushes will conduct the current in the proper manor. Keep in mind that the brushes will be in contact with the parts of the disks that are moving the fastest. The will add drag to the machine and will wear out rather quickly.

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Author Topic: My best at homopolar design (Read 13818 times)

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