magnetic piston engine three times

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pairoar_7
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Registration: 20/09/08, 19:48




by pairoar_7 » 20/09/08, 20:28

bjr
I've been thinking about this for over two years! I even bought myself magnets and I built myself and managed to move a kind of car in Lego technik! (and yes we do what we have! ) but my concern is that I do not know my tt in mechanical electronics etc dc j was forced to change my magnets by hand to reverse the polarities!
I thought it was a crazy idea but I see that other people have thought about it.
is it possible ac simple material to change the polarity of magnets or to inhibit their force?
so when the piston reaches the limit it activates a kind of switch which reverses the polarity and dc the piston is pushed back. or then ac 4 cylinders where the piston is a magnet and the upper end also (of the same polarity) when a piston arrives at the top the force of the upper magnet is activated by a kind of switch dc it repels arriving at the bottom another switch inhibits the force of the magnet from the top and the piston goes up thanks to the other pistons which are each operated at different times and so on.
it's complicated! but it must certainly be possible?
In any case, I am testing with the means at hand, and I would like to change the polarity of my magnets or inhibit their strength.

Edition Capt_Maloche 21/09/2008 correction of spelling errors
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taramop
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by taramop » 21/09/08, 09:54

Hi pairoar
I think that indeed the concept can work even if I think that the engine torque will not be very important because of the small piston strokes (reduction of the magnetic fields with the square of the distances if I am not mistaken)
by browsing the web we find a lot of ideas

Here is mine
https://www.econologie.info/share/partag ... O4eI3v.avi
After you have this starting point for my ideas
http://translate.google.fr/translate?u= ... r&ie=UTF-8
et
http://www.dailymotion.com/jp_c_33/vide ... ecran_tech
At the moment I am redrawing all the set with existing material in order to be able to switch to not too false magnetic simulations.

But if your model is always mounted some photos and a video it would be good : Lol:

To answer you Capt-Maloche watch the video of Jpc-33 : Shock: and say month what you think of the observed phenomenon : Lol: .

But there it is the preparation of the holidays for me so stand by : Mrgreen:
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chatelot16
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by chatelot16 » 21/09/08, 12:32

Flytox wrote:Hello chatelot16
chatelot16 wrote:it is not profitable to use magnetic efforts to recover kinetic energy at the end of the race: it is the crankshaft that does it very well: at high speed the effort to recover kinetic energy at the end of race is superior to the useful effort: weighing down the piston with a magnetic trick will require a more solid crankshaft: it is the height of the crankshaft and the flywheel must be larger than when all the power passes through it

Okay with you, close to the PMB and PMH limit switches, we have nothing to gain from grilling energy by pressing the piston while the mechanics of the connecting rod, crankpin, crankshaft form a very unfavorable angle to the transmission. of couple. You have to bet to push / pull around the middle of the race.
A+


we always say that the effort on the piston is useless for pmh and pmb: but it is however essential to exert a huge effort on the piston to reverse its translational movement: at high speed, the acceleration of the piston at the end of the stroke is such that the necessary force is greater than the useful driving force on the piston: if the efficiency of what makes this force is not good enough it risks consuming more energy than the engine product

in practice we already see compressors with vibrating piston, with spring and electromagnet: the efficiency is bad: if the efficiency is lower than 50% in compressor it is that the lost power is higher than the useful power: therefore the engine operation is impossible
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Capt_Maloche
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by Capt_Maloche » 21/09/08, 23:06

pairoar_7 wrote:bjr
is it possible ac simple material to change the polarity of magnets or to inhibit their force?


It's called an electromagnet : Cheesy: and more seriously, I don't know of a system that would reverse the polarity of a permanent magnet

we already talked about it on the 3rd message on this page: https://www.econologie.com/forums/moteurs-ma ... 6-590.html

do you know how we make a magnet? search a little and post us the answer

Look, we even had fun with wooden models: https://www.econologie.info/share/partag ... _Gravi.mp4


Hello Taramop :D

I watched your video, it's the same principle as the little train
see here : https://www.econologie.com/forums/moteurs-ma ... -1020.html
Capt_Maloche wrote:Hi Quartz,

nice guy, but what he calls a "peak of potential" is an area where 3 magnetic circuits intersect:

1 of large range formed by the assembly of the 2 magnets with the wooden block
a 2nd which I would call 1bis in opposition with the flux lines between the 2 magnets and whose direction is opposite
and the third formed by the magnet alone

Come on, a little diagram:
Image

lines that go in the same direction attract, those in opposition repel

circuit 1 with a long range weakly attracts the magnet, while circuit 1bis, shorter but more powerful, keeps it at a distance.

conversely, when the magnet is inverted, it is first repelled by circuit 1, but as soon as it approaches the more powerful circuit 1bis, it sticks

it is a balance all the more astonishing as it will be necessarily stable because the flow of circuits 1 and 1bis are the same !! this is what makes this montage interesting, very clever indeed. to meditate for our tours :D

there is nothing inexplicable in this demonstration 8)

When are you going to start using magnetic circuits, the only way to understand complex assemblies?
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Marcel2940
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by Marcel2940 » 18/03/09, 08:44

Here I made a small Electronic control system which allows to adjust the duration of the pulse (the duty cycle for the "specialist") according to the speed of the piston.
Image
And the functioning of the engine if one day its can be used. :P
https://www.econologie.info/share/partag ... nPp7kU.wmv
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quartz
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by quartz » 21/08/10, 12:01

Hello everybody :D

A little hello Capt_maloche, so that you can see that your idea still lives, it is being exported to Canadian cousins, I was contacted last week,
A certain Benoit asked me if he could try a reproduction.
I gave him the benefit of a new way of looking at the object, born during the holidays.

Image
I quickly tinkered with an animation, in blue a magnetic disc, in red magnetic pastilles, in gray the magnetic steel shutters.
The disc is mounted in opposition to the pellets, so when a shutter is between the disc and the pellets, they can remain opposite.
On the other hand, when the shutter is absent, the pellets repel the disc.
The design is different, particularly at the level of the rotor, which is uniformly polar on one side.
While the first prototypes were partitioned NS.
This produced an additional blockage at the shutter.
The eccentric rotor is a more flexible solution.
The drawing is not frozen, it's just to fix ideas.
We are in the presence of a rotor 7 times faster than the shutter, rotating in the same direction.

For the moment I have not made a planning of model.

A+
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