Fuel Supply System

You will need a high pressure to medium pressure regulator. And a much larger tank!

9 liters at 300 atm will likely only get you a few blocks on level ground.

Sorry for the disappointment but compressed air isn't all that efficient as a power source. And the energy required to pump up the tank again far out weighs what just charging a battery and using an electric drive system would use. At least with an electric drive system you have wind and solar as true clean energy sources.

The massively inefficient and expensive pumping system used to fill the tank will take any enviro friendliness and cost savings right out of the design and then some! Your engine may be clean, efficent, and eco friendly but the power and the machine that fills the tank is not!

Light a spotted owl on fire and toss it on a pile of old tires. The environment will be better off!

Sorry to be so blunt.

My thoughts too, except for the whole spotted owl thing .

Similar situation/myth to the "environmentally friendly" hydrogen fuel cell cars ......... where do you get the hydrogen from? ........ Electricity?.......... From coal/gas burning power plants?.......... kind of defeats the purpose/only moves the pollution problem.

http://video.google.com/videoplay?docid=4852772472368255496

bioramani

If you don't have some sort of relatively "free" (don't jump on my head for using the "F" word please?) energy from Solar, wind, sea or volcanic origins, then you are simply wasting your time.....

Otherwise electricity, even the stuff you pay for, can make a small vehicle run quite economically. (the vehicle itself may prove expensive to build!).

Of course if you get that electricity from Wind or Wave, then you really will be starting to save the planet!!!

<...1>how to maintain the cylinder pressure when it is discharging. ...>

Warm it up.