The “Air Car” can’t sustain itself because perpetual motion is impossible?
Max asked: but why can’t there be an alternator run by the engine that will re-charge a battery that runs a small compressor to slowly re-charge the tanks overnight? Why couldn’t a fan mounted somewhere on the car use wind energy from the days driving to charge the battery? There must be some way [...]
Why don’t they make compressed-air steam engine autos, trucks and etc?
David S asked: This combines the ideas of the compressed air-car, multi-stage steam engine efficiency and regenerative braking. Electric power companies use steam engines to generate electricity because it is much more efficient. The efficiency of internal combustion engines has a mechanical efficiency of about 20%. Using a small steam engine, is more efficient, cleaner [...]