Quote:
Originally Posted by alexander
oooh, ooh how about a compressed air motor and drive system, like in the european compressed air cars.
Start with mounting a  , 4500psi carbon fiber air tank
then the fun of designing an ultra small, rotary compressed air motor, that will be small enough to fit in the wheel, but still spin fast enough to be able to, when geared down, drive you with some, perhaps fairly significant speed (at 4500psi, you dont need a hell of a lot of air to drive it) by the way ( www.engineair.com.au for motor design ideas)
this way you fill the tank with compressed air, it makes no electro-magnetic pollution, it makes no noise, until you push the throttle, which will open up a pressure valve it up and propell you forward 
juust another thought and since the motor will have to be mounted on the forks, you really dont have to worry about air line getting twisted, as long as it runs with the forks and has some play in it, it should not effect your steering
Juust another idea |
(although the effieciency of use of the compressed air would be inquestion using this tool below)
could you just use on of the pnumatic air tools meant for heavy machenery (ie diesel)
the hook up a worm drive to the tool so you have the tool in line with the frame
and the pnumatic connected to a worm gear the that drives the tire
or get the air tool already focused at a 90deg angle
then you wouldn't have centripital values to worry about
you could just get the air tool from any auto store
and the tank
well you could get one of those carbon fiber tanks that are light and are capable of storing like 20,000 lbs/sqin of hydrogen
