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Thread: Indian students invent bike that runs on air

  1. #16
    Quote Originally Posted by pete376403 View Post
    - how do they power the compressor?
    The compressor is run off a belt from the motor - it replenishes the tank as you ride,like the alternator on a car.It's free energy....
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  2. #17
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    Quote Originally Posted by Motu View Post
    The compressor is run off a belt from the motor - it replenishes the tank as you ride,like the alternator on a car.It's free energy....
    So they have discovered perpetual motion?

  3. #18
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    Technology already done with cars. Works quite well too.

  4. #19
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    Quote Originally Posted by Solly View Post
    Who the fark wants to ride under water!!??
    Beaumont rally in a few years time... come on now you have to admitt to that one...

  5. #20
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    Lol. Goes against the 2nd law of thermodynamics. Many people tried to this this for hundreds of years but up till now they still cant do it. Im sure an olympic runner can do like 32km/ph. But hey its progress they are making so all in good time...
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  6. #21
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    Quote Originally Posted by Ixion View Post
    Air motors are very common. Used a lot in processing industries. I've attached them to many a bit of plant before today. They have the advantage of being light, simple and don't mind being stalled .Also explosion proof , which is always a big advantage.

    Nothing very revolutionary (every one a gem!) there.
    Yep. Before they had nice good diesel motors (and even for a long time afterwards for fire hazard reasons), for small (esp. indoors) shunting locos, they were often converted steam locos to `fireless locos' -- simply instead of using compressed steam from a boiler, they used compressed air which was generated elsewhere. Many factories couldn't have fires inside, not just because of smoke etc. but because of gases and fire risk.

    Later on they had dedicated cabless fireless locomotives, just looked like a small bulk-liquid wagon, a big compressed air tank on a couple of axles as a 0-4-0, no cab or footplate, just a few levers on the outside to run it.

    Before they ran out of pressure, they'd drive them over to a point in the factory where they could charge them back up with a compressor -- run by a big fired engine outside that took care of all the power in the factory.

    So yeah, nothing new, just add a bit more plumbing to the bike and add a boiler and firebox... that'd be a bit more interesting.
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  7. #22
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    Quote Originally Posted by Solly View Post
    Who the fark wants to ride under water!!??
    I think I recall an attempt in the late 70's to ride accross the Waimak on something like a honda ag bike with snorkels, ridden by a diver....Any one recall more about that?

    Quote Originally Posted by pete376403 View Post
    Doesn't combat pollution, just shifts it somewhere else - how do they power the compressor?
    Wind powered compressor like a wind turbine...

    Quote Originally Posted by EJK View Post

    Refil every what... 18 meters?
    Roughly from memory it takes a 10 hp dive compressor 1/2 an hour to fill a 3300psi dive bottle....work this backwards roughly again, 10 hp Motor should run 1/2 hour on one dive bottle.

    Quote Originally Posted by Motu View Post
    The compressor is run off a belt from the motor - it replenishes the tank as you ride,like the alternator on a car.It's free energy....
    Duh?

    Watch this spot, it has potential and is simple in its concept as with all great ideas.

  8. #23
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    I'm a cynic

    The basic theory has a big hole in it - you don't get nothing for free
    You have to compress the air first

    It takes more energy to compress air than the energy you get from the resulting pressure
    Every cube of air is produced with the same amount of energy - from the first pump to the last pump

    But when expelled the pressure drops and the energy expended reduces per volume - the last bit is practically useless
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  9. #24
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    Quote Originally Posted by NighthawkNZ View Post
    Beaumont rally in a few years time... come on now you have to admitt to that one...
    Brilliant Nighthawk....absolutely bloody brilliant

    That is a top reply.........I'm ordering mine today
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  10. #25
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    Quote Originally Posted by Motu View Post
    The compressor is run off a belt from the motor - it replenishes the tank as you ride,like the alternator on a car.It's free energy....
    !!!!WTF

    Perpetual motion.... They is genuises Alfalfa.

    Why did no one else think of this first......
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  11. #26
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    Quote Originally Posted by NighthawkNZ View Post
    Beaumont rally in a few years time... come on now you have to admitt to that one...
    You go to the first (underwater) one... let us know how it went...
    When life throws you a curve ... Lean into it ...

  12. #27
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    backyard tinkerers have been doing this to bicycles for ages i beleive. That way when you run out of air, you still got pedals!

    On a more technical note, the efficiency of compresing air is pretty piss-poor at high pressures, sometimes as low as 10%, so theyre not only just shifting the energy problem somewhere else, theyre making it worse.

    Points for thinking outside the box though, pity the bigger companies arent exploring alternative energys as much.
    "A shark on whiskey is mighty risky, but a shark on beer is a beer engineer" - Tad Ghostal

  13. #28
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    Quote Originally Posted by mujambee View Post
    So they have discovered perpetual motion?
    No, they have REDISCOVERED the ancient secret of perpetual motion that was lost when Atlantis sunk beneath the waves. Everyone knows that!
    It is preferential to refrain from the utilisation of grandiose verbiage in the circumstance that your intellectualisation can be expressed using comparatively simplistic lexicological entities. (...such as the word fuck.)

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  14. #29
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    Quote Originally Posted by Solly View Post
    Who the fark wants to ride under water!!??
    hell yeah.. i'll take a spear gun and scollop bag and go get sum dinner while
    out for a nice relaxing ride...who knows might even pick up a couple of mermaids as well,
    whats the old saying..what goes on underwater stays underwater.
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  15. #30
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    Quote Originally Posted by Solly View Post
    Who the fark wants to ride under water!!??
    MMMEEEEEEE, imagine doing jumps inside the ocean, could get the mad trick combos going.
    "A shark on whiskey is mighty risky, but a shark on beer is a beer engineer" - Tad Ghostal

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