Superwheel - how does this work ?

General cycling advice ( NOT technical ! )
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cycleruk
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Superwheel - how does this work ?

Postby cycleruk » 20 Nov 2020, 9:04am

You'll never know if you don't try it.

Boring_Username
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Re: Superwheel - how does this work ?

Postby Boring_Username » 20 Nov 2020, 9:10am

The inventor seems to think you can convert a reactive force - one component of a set of two forces that are necessarily in balance (in this case, weight and ground reaction)- into "energy". You can't.

In theory you could convert some energy currently lost into more usable energy - regenerative braking for example - but apart from air resistance and body heat, which are hard to convert, most energy losses on a bike are tiny.
Last edited by Boring_Username on 20 Nov 2020, 9:37am, edited 2 times in total.

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Mick F
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Re: Superwheel - how does this work ?

Postby Mick F » 20 Nov 2020, 9:12am

Mick F. Cornwall

Brucey
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Re: Superwheel - how does this work ?

Postby Brucey » 20 Nov 2020, 9:38am

it is clear that the springs only get compressed/extended in the way described by virtue of the wheel centre moving upwards wrt to the bike. On a smooth surface this can't possibly do anything useful except waste energy in whatever friction exists in the mechanism, i.e. it will be like riding slightly uphill.

However what happens exactly when you hit a bump? This isn't so clear to me; there may be something less harmful going on.

cheers
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hamster
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Re: Superwheel - how does this work ?

Postby hamster » 20 Nov 2020, 11:19am

Shame on the academic institutions who backed this idiocy and failed to realise its conception is perpetual motion.

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NATURAL ANKLING
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Re: Superwheel - how does this work ?

Postby NATURAL ANKLING » 20 Nov 2020, 11:30am

Hi,
Don't you think by now someone would've come up with some marketable machine?
Bhaskara’s Machine was around in idea from 1150.
But of course with most the stuff the energy you get out is never quite what you put in and of course the cost in making it in the first place.
I will admit it's an ingenious neat trick.
More here-
https://listverse.com/2015/09/11/10-att ... echnology/
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james01
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Re: Superwheel - how does this work ?

Postby james01 » 20 Nov 2020, 11:35am

A reasonably intelligent relation of mine asked why they don't put dynohubs on electric bikes so you could charge the battery as you ride along. :?

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NATURAL ANKLING
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Re: Superwheel - how does this work ?

Postby NATURAL ANKLING » 20 Nov 2020, 11:49am

Hi,
Define intelligence?
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soapbox
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Re: Superwheel - how does this work ?

Postby soapbox » 20 Nov 2020, 12:46pm

james01 wrote:A reasonably intelligent relation of mine asked why they don't put dynohubs on electric bikes so you could charge the battery as you ride along. :?

I'd consider myself a reasonably intelligent person, with a distant background in mechanical engineering, but I wouldn't know the answer to that question because like many people, electricity is something that I've never been interested in and just don't understand.

simonhill
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Re: Superwheel - how does this work ?

Postby simonhill » 20 Nov 2020, 1:11pm

When I first saw this, I thought it had a big spring that you somehow wound at home. It then powered you much like an old clockwork train.


Soapbox - to put it simply, you use (loose) a bit of energy at each stage of the battery charging and using process. Therefore you put in more than would come out, eg pedal 5 times to get 4 pedals of energy.

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Re: Superwheel - how does this work ?

Postby rjb » 20 Nov 2020, 1:21pm

Someone tried a wind powered cart where the wind mill charged a battery driving an electric motor. Total failure - Newton's law of conservation of energy would preclude this from working. As an aside this wheel reminded me of an attachment to keep your tyres inflated. It relied upon a spring loaded ball in a brass tube which as it bounced along and rotated with the wheel would compress air and inflate your tyres. It was widely advertised in the "comic" in the 1960's. It fell by the wayside pretty rapidly. Anyone recall this device, about the size of a 2 inch pencil. :lol:
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mercalia
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Re: Superwheel - how does this work ?

Postby mercalia » 20 Nov 2020, 2:53pm

square wheels for me


axel_knutt
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Re: Superwheel - how does this work ?

Postby axel_knutt » 20 Nov 2020, 3:17pm

james01 wrote:A reasonably intelligent relation of mine asked why they don't put dynohubs on electric bikes so you could charge the battery as you ride along. :?
I invented that scheme for my go-kart when I was about eight. I had the nagging feeling it wouldn't work, but couldn't quite put my finger on why at that age.

soapbox wrote:I'd consider myself a reasonably intelligent person, with a distant background in mechanical engineering, but I wouldn't know the answer to that question because like many people, electricity is something that I've never been interested in and just don't understand.

The answer has nothing to do with electricity, and everything to do with the fact that all perpetual motion machines don't and can't work, regardless of whether they're electrical, mechanical, or any other ical.
“I'm not upset that you lied to me, I'm upset that from now on I can't believe you.”
― Friedrich Nietzsche

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531colin
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Re: Superwheel - how does this work ?

Postby 531colin » 20 Nov 2020, 3:21pm

james01 wrote:A reasonably intelligent relation of mine asked why they don't put dynohubs on electric bikes so you could charge the battery as you ride along. :?

It amuses me that E bikes have dynamo lighting. (but that may be to do with vehicle lighting regulations)

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Re: Superwheel - how does this work ?

Postby Brucey » 20 Nov 2020, 3:36pm

rjb wrote:Someone tried a wind powered cart where the wind mill charged a battery driving an electric motor. Total failure - Newton's law of conservation of energy would preclude this from working...


actually that is not the case; in a crosswind it could work and even in a headwind you ought to be able to make forward progress, just not as fast. A bigger problem is the sheer efficiency of the whole arrangement; probably every one of about seven stages might at best be around 90-95% efficient, making for a total efficiency of about 50%.


As an aside this wheel reminded me of an attachment to keep your tyres inflated. It relied upon a spring loaded ball in a brass tube which as it bounced along and rotated with the wheel would compress air and inflate your tyres. It was widely advertised in the "comic" in the 1960's. It fell by the wayside pretty rapidly. Anyone recall this device, about the size of a 2 inch pencil. :lol:


I've heard tell of such things but never seen one in the flesh or know anyone that has actually used one.

cheers
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