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Author Topic: Dual Piston Device with Permanent Magnets  (Read 29987 times)

d3adp00l

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Re: Dual Piston Device with Permanent Magnets
« Reply #45 on: April 20, 2007, 08:21:24 AM »
guns usually scare people. I not saying that is what happened. But they usually will scare people.

eavogels

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Re: Dual Piston Device with Permanent Magnets
« Reply #46 on: April 26, 2007, 12:12:26 PM »
Status: All levers and bearings are installed. I have the movement I want. Now I
have to add a slider bearing to the shield. One slider bearing at the bottom is
too weak: I need a slider on top as well, so that the shield slides in between
two rails. I also made a little 'shield mount' so that I can make and test
several shield shapes and materials.

Vision: Although I'm still in the process of constructing, just to try how a
shield will perform, I'm already thinking about the DualPistonDevice MK II
In that version I want to replace most (all?) of the sliding bearing with levers
(or discs, not decided yet) with a mounted pivot point. I want to get rid of the
sliding elements but I still want to take advantage of the fact that levers can
controle the speed and the timing of the shield insertion.

Regards,
Eric.

eavogels

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Re: Dual Piston Device with Permanent Magnets
« Reply #47 on: April 26, 2007, 12:24:07 PM »
Here is what I plan to do, to replace the sliders.
Eric

Nastrand2000

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Re: Dual Piston Device with Permanent Magnets
« Reply #48 on: April 26, 2007, 06:31:59 PM »
have you thought about laying this horizontally to nullify gravitational effects.....just a thought.

d3adp00l

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Re: Dual Piston Device with Permanent Magnets
« Reply #49 on: April 26, 2007, 07:36:06 PM »
looks  interesting, lets see what happens

eavogels

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Re: Dual Piston Device with Permanent Magnets
« Reply #50 on: April 29, 2007, 09:47:46 PM »
have you thought about laying this horizontally to nullify gravitational effects.....just a thought.
Yes, from the beginning it was supposed to be horizontal. But since I used this type of gliders under the magnets, the magnets were 'hanging' on the cariages and the presure of the lever was against the rail. OR: the magnets were standing on the glider and the lever was pushing the cariage to the side of the wheel. Both situation gave lots of extra friction. I needed the weight of the magnets AND the pressure of the levers into the same direction: pressing onto the rail and therefor the direction of gravitation. That is why the model is almost vertical now.
Eric.

eavogels

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Re: Dual Piston Device with Permanent Magnets
« Reply #51 on: May 07, 2007, 12:51:24 PM »
An update:
I tried my first shield and I discovered two things:

1. My shield was mounted too low. It went down too much and the magnets repelled where the should attract. Result: wrong direction of the fly wheel.
2. I need to find a better way to keep the shiled straight between the magnets. Now I have 2 parallel glider but tuning them 100% parallel is very time consuming. And this tuning has to be done every time I change shield.

Conclusion so far:
a.Attaction and repelling forces are very strong but easy to control with the linear bearings.
b.The current way the shield is mounted gives too much friction but the new shield holder will save this.

ToDo:
a.Building a new shield holder
b.Mounting the shield higher
c.Making the shield thicker. Repelling forces are passing a shield that is too thin.

Regards,
Eric.



liinkss

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Re: Dual Piston Device with Permanent Magnets
« Reply #52 on: May 15, 2007, 06:43:01 PM »
Hello, (I'm new here)
I've been trying to do something similar 2 years ago, but I dismissed when I realized that the magnetic field was passing through the iron (nearly?) without any loss of power.
But then reading this topics I got an idea base on the statement that it's maybe possible to find the balance between attraction (to iron) and repulsion of the magnet(N<-->N). But this balance is not only depending to the exact moment where the shield is removed, but also to :
- the distance between the iron plate <--> magnet
- and the distance between the magnet when the iron is in the middle!

So, actualy, I think that the iron plate has to be removed from the path of the magnet at the exact moment where the attraction repulsion is balanced. Not when the magnet is very close to the metal... because the power is proportional to the ^3 of the distance. So if the magnet get to close to the metal, there is no way that the repulsion between the magnet manage to compensate...
Plus, I would use 2 large magnet (not only powerfull ones) because the distance the force is affecting is proportional...

Let me know if it help! :)

liinkss

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Re: Dual Piston Device with Permanent Magnets
« Reply #53 on: May 15, 2007, 10:39:46 PM »
Something else, when the shield try to go up, the two magnet are pulling it... so why don't fix two other magnet over the shield, like in this pic? The idea is that these two fixed magnet could annulate the strength needed to take the shield out of the (piston) magnet path...

del_toro_es

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Re: Dual Piston Device with Permanent Magnets AND STEORN device
« Reply #54 on: May 22, 2007, 12:30:36 AM »
  :D???I have an idea that may connects Steorn device with dual piston device.
At Steorn Low Energy Magnet Actuator device , if in front of each magnet at outside of shield, we put another magnet in repulsion mode, when the  shield moved, the magnet that will be  pushed because then shield is removed and magnetic field appear. Thus we obtain a lot of energy with the low actuator

Please see picture and:   http://youtube.com/watch?v=ME6dnwtbBE4

eavogels

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Re: Dual Piston Device with Permanent Magnets
« Reply #55 on: May 23, 2007, 01:38:29 PM »
Something else, when the shield try to go up, the two magnet are pulling it... so why don't fix two other magnet over the shield, like in this pic? The idea is that these two fixed magnet could annulate the strength needed to take the shield out of the (piston) magnet path...

Thanks for you 2 advices. I'm going to test that.
Regards,
Eric

eavogels

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Re: Dual Piston Device with Permanent Magnets AND STEORN device
« Reply #56 on: May 23, 2007, 01:44:16 PM »
  :D???I have an idea that may connects Steorn device with dual piston device.


Thanks, this is also a very nice idea. I must get rid of the friction first and while I'm redoing the design, I will take all the good ideas in consideration.
Regards,
Eric.

del_toro_es

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Re: Dual Piston Device with Permanent Magnets
« Reply #57 on: July 10, 2007, 01:35:13 PM »
 ;DI I have evidence that initially Steorn Orbo steorn  magnet low actuator device, reading steorn web:
?Technical Specifications
Orbo is based upon the principle of time variant magneto-mechanical interactions. The core output from our Orbo technology is mechanical. This mechanical energy can be converted into electrical energy using standard generator technology either by integrating such technology directly with Orbo or by connecting the mechanical output from Orbo to the generation technology. The efficiency of such mechanical/electrical conversions is highly dependent on the components used and is also a function of size.
Orbo technology is subject to continuous development. This development is focused on improving the manufacturability of the technology, production costs and power density. Orbo was initially developed as using stop-start mechanisms (with a power density of 0.5 Watts per cm3), Steorn is currently finalizing the development of constant motion systems and a significant improvement in power density is anticipated.

del_toro_es

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Re: Dual Piston Device with Permanent Magnets
« Reply #58 on: July 10, 2007, 01:53:22 PM »
 I believe that initially Steorn Orbo was basted on magnet low actuator device, in the way to dual magnet piston, becouse reading steorn web:

?Technical Specifications
Orbo is based upon the principle of time variant magneto-mechanical interactions. The core output from our Orbo technology is mechanical. This mechanical energy can be converted into electrical energy using standard generator technology either by integrating such technology directly with Orbo or by connecting the mechanical output from Orbo to the generation technology. The efficiency of such mechanical/electrical conversions is highly dependent on the components used and is also a function of size.
Orbo technology is subject to continuous development. This development is focused on improving the manufacturability of the technology, production costs and power density. Orbo was initially developed as using stop-start mechanisms (with a power density of 0.5 Watts per cm3), Steorn is currently finalizing the development of constant motion systems and a significant improvement in power density is anticipated

ken_nyus

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Re: Dual Piston Device with Permanent Magnets AND STEORN device
« Reply #59 on: August 16, 2007, 03:08:22 PM »
Thanks, this is also a very nice idea. I must get rid of the friction first and while I'm redoing the design, I will take all the good ideas in consideration.
Regards,
Eric.

Any more work done here?

Don't forget to use a heavy flywheel to store the energy around the cycle.