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Author Topic: Spring Generator Motor on YT.  (Read 11571 times)

Magluvin

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Spring Generator Motor on YT.
« on: July 21, 2016, 11:58:52 PM »
Found this vid on YT. I know a lot of fakes are out there, but something is interesting about this...

https://www.youtube.com/watch?v=CJ8FJedjGVk


Notice the direction he spins the wheel. When the crank pushes down on the spring strip, it makes first contact on the far left end, where it would be easier to do so. Then when the crank is on the upward swing, the spring should have more torque to push it up at that point, more torque than it took to push the spring down. :o

Thats just what Im seeing so far. And the adjustable weight on the spring changes the resonant vibration of the spring?   

Just something to think on. ;)

Mags

Temporal Visitor

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Re: Spring Generator Motor on YT.
« Reply #1 on: July 22, 2016, 01:06:05 AM »
Found this vid on YT. I know a lot of fakes are out there, but something is interesting about this...

https://www.youtube.com/watch?v=CJ8FJedjGVk


Notice the direction he spins the wheel. When the crank pushes down on the spring strip, it makes first contact on the far left end, where it would be easier to do so. Then when the crank is on the upward swing, the spring should have more torque to push it up at that point, more torque than it took to push the spring down. :o

Thats just what Im seeing so far. And the adjustable weight on the spring changes the resonant vibration of the spring?   

Just something to think on. ;)

Mags

You are absolutely correct on what you are "seeing so far".
However there is more: much more you are not seeing that is happening and can be done with this. Some early EN-GEN designs I built use somewhat similar concept(s) with "continuously variable fulcrum" levers that did work to do just what you describe.

If you study it you should find it is (in a  sense) a mechanical version of an airfoil in operation.

You can make it better by using "180 degree twin cylinder"  type crank shaft with ball bearings for the rollers on BIG leaf springs or levers with coil springs from car/trucks, or whatever. Attached is a photo of one of several 180 degree cranks I built and tested.

It works but is not "practical" and it is ancient history.
« Last Edit: July 22, 2016, 12:46:31 PM by Temporal Visitor »

vince

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Re: Spring Generator Motor on YT.
« Reply #2 on: July 23, 2016, 01:35:47 AM »
Not exactly the same but the concept is, and it is adjustable.
Can you guess what it does?


Vince

gyulasun

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Re: Spring Generator Motor on YT.
« Reply #3 on: July 23, 2016, 01:42:54 AM »
Not exactly the same but the concept is, and it is adjustable.
Can you guess what it does?


Vince

Hi Vince,

I cannot resist to answer with this question: Does the flywheel come to a halt soon?     ;)

Gyula

citfta

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Re: Spring Generator Motor on YT.
« Reply #4 on: July 23, 2016, 01:47:10 AM »
My guess is the flywheel stops fairly quickly.  The big difference I see is the motor in the video has the cam only hitting the spring at the bottom of the revolution.  Maybe for 90 degrees or so.  Yours appears to have the cam in contact with the spring loaded arm for almost all or maybe even all of the rotation of the flywheel.  You need a stop on the arm to limit the amount of time the cam is in contact with the arm.

Carroll

vince

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Re: Spring Generator Motor on YT.
« Reply #5 on: July 23, 2016, 01:58:14 AM »
The spring can be adjusted to have  the cam touch the lever at the bottom only aswell.  Makes no difference!
It acts as expected. flywheel slows down sooner than if it was freewheeling.
Not sure what the guy does in the video but I see no way this thing can work.


Vince

Magluvin

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Re: Spring Generator Motor on YT.
« Reply #6 on: July 23, 2016, 04:32:34 AM »
Hey Vince

Did you just build that after I posted the thread?


Mags

vince

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Re: Spring Generator Motor on YT.
« Reply #7 on: July 23, 2016, 04:41:28 AM »
Yes, I built it after you posted. Looked interesting and simple. Had all that junk lying around and it only took 1/2 hour.


Vince

gotoluc

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Re: Spring Generator Motor on YT.
« Reply #8 on: July 23, 2016, 05:42:29 AM »
Interesting but :-\

Magluvin

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Re: Spring Generator Motor on YT.
« Reply #9 on: July 23, 2016, 05:52:56 AM »
Yes, I built it after you posted. Looked interesting and simple. Had all that junk lying around and it only took 1/2 hour.


Vince

Nice work. ;)

Some things I imagine would have to be vital for it to come close to working...

He had bearings on both sides of the flywheel, where this would eliminate the weight of the wheel, of which yours looks nice and heavy, from possible binding of the bearing. If there are 2 like in the vid, one bearing on each side, then there would be less bearing resistance. Like the spring is also pushing up on the crank creating more binding actions on the single bearing.

Like here are 2 vids I did years ago showing that removing the grease from a bearing and applying graphite reduces the friction to a sublime minimal. But still, if they have angular force such as your bearing may have, there will be added resistance to wheel motion.

https://www.youtube.com/watch?v=iSTfFIetYPY

Then a timed rundown. 2 vids, total run down was 14min and 8 sec from 1000rpm. YT only allowed 10min vids then.

https://www.youtube.com/watch?v=iSTfFIetYPY

https://www.youtube.com/watch?v=eVXtRSxm73g


And here is a guy that shows a bearing with just grease cleaned out. Clearly the graphite is a champion.

https://www.youtube.com/watch?v=_SarphxxbqM

Then he found my vid and shows his improvement with graphite

https://www.youtube.com/watch?v=DaG_CLsdN4M

The point is, if your ambitious, dont stop there as it may not be definitive that it doesnt work yet.

Another point may be that the spring should be more stout. If you have some stainless strips it will have better spring action if you dont have spring steel strips. Love the crank you did there with the bearing wheel. And the adjustable weight as shown in the vid may help. The spring you have there, if plucked without the wheel, what freq does it ring at? May be faster than the speed of the crank, so far. In his demo, that weight in scale size would be a good chunk on your setup. Just saying that resonance of the spring may be key.

Ive been pondering what I will use If I try this. But great to see that you gave it a go.  Real nice rendering of the device. Just throwing ideas to help improve it. If we get rid of as many losses as possible, then if there is just an inkling of something there, it will show more clearly.

Like if everything was as good as it can be done, even if it didnt work, then tests can be done to see if just the freewheel of the wheel, a rundown, compared to the spring in action is having a positive or negative affect on the wheel. If it runs longer with the spring, then we know we are not done yet. ;)

Mags




Magluvin

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Re: Spring Generator Motor on YT.
« Reply #10 on: July 23, 2016, 06:06:10 AM »
Interesting but :-\

Hey Luc

They look like bearings with the seals off and maybe cleaned of grease to reduce viscosity to run more freely.  See my prev post.

It does look like it could hold a motor in those tubes, or it could just be bearing holders. So without knowing for sure, we can 'assume' one way or the other. ;)

It is an interesting fact that the crank most likely sees less pressure pushing down on the farther end of the spring, and the spring should have more force pushing up on the upward swing of the crank as that area of the spring is closer to the spring base. I had to go back and look again after I had those thoughts and see if the wheel was being spun the right way, and it is.

And if resonance of the spring has something to do with it, it sure looks like the adjustment of the weight toward the spring base would raise the freq, and when he did, it spins at a faster rate.

Mags