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Self powered water pump?  RSS feed

 
Scott Lawrence
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Location: Skandia, MI
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Would this kind of thing work?
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Branko Horvat
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Location: Temerin , Serbia, East Europe
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Hi. Short answer "NO". But if you want to go that way see about Milkovic Two-Stage Oscillator , has allot of practical applications,even for a manual well pump.
 
David Livingston
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I would check out Archimedes screw https://en.wikipedia.org/wiki/Archimedes'_screw been used since ancient times its very good also how about using a ramjet pump https://en.wikipedia.org/wiki/Hydraulic_ram
 
Michael Cox
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Location: Kent, UK - Zone 8
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What you are proposing is a perpetual motion machine. Short version - they don't work, and it is impossible for them to work.

Longer version - where does the energy come from to make the water flow? Gravity makes water flow down hill, not uphill. To get the water out of the ground in the first place energy needs to come from somewhere. If you wanted to get that same energy back out again from the water you would need to let the water fall back down to the same original height - eg back down the full depth of the bore hole - which defeats the point.

More than that, you can never get ALL the energy back because there will be lots of friction and rubbing in a system like that, so energy is lost at each stage.
 
David Livingston
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Archimedes screw plus donkey was  pretty standard though out the east or even with a windmill
So dose n't have to be perpetual motion machine
 
Peter Ellis
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Location: Central New Jersey
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David Livingston wrote:Archimedes screw plus donkey was  pretty standard though out the east or even with a windmill
So dose n't have to be perpetual motion machine


It's the part where the water lifted from the well drives the screw to lift the water from the well that is the problem, David.  That version is a perpetual motion machine and cannot work.  Archimedes screw isn't the problem, energy for driving it in the system depicted is the problem.  Introducing a donkey, or any other external energy source to drive the screw is a whole different system And yes, they work and have worked for eons.
 
Travis Johnson
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That was my take too David. It is hard to tell as the sketch is a touch crude, but I thought Scott was using the current flowing by in a stream to power a chain that powered a set of gears to power a screw. I do not see why that would not work. A spiral coil of tubing would work better up to a certain height of lift due to the diameter of the waterwheel, but I don't see why it would not work.

If the intent was for a perpetual motion machine, then obviously not.
 
William Bronson
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I think the sketch was pretty good.
And it won't work as drawn.
If you have running water,you could use some of that energy to move the water itself.
A water wheel driving a generator which in turn powers a pump,for example. Or a purely mechanical version of the same.
But the water from the pump can't then power the wheel,that would be perpetual motion and it would not work.
 
Branko Horvat
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Location: Temerin , Serbia, East Europe
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Hi,
here are some ideas and realizations of a gravity-operated water pumps. Milkovic dual oscillator(pendulum) and its not a "perpetuum mobile". Just needs some energy input from time to time. If constructed good, you can just swing the pendulum in the morning and let it work all day.But it takes like a 2 metric ton pendulum,and its hard to start the oscillations by just pushing it with your hands.

https://www.youtube.com/watch?v=jNdF8mTfu4g
https://www.youtube.com/watch?v=Xt4dLsqX_I4
https://www.youtube.com/watch?v=8n7mvpLpP5A

here is the more about the dual oscillator
http://www.veljkomilkovic.com/indexEng.htm

I think the original post was about making easier the use of a manual water pump. The method , Archimedes screw or roman pump dose not matter.
 
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