Air is good

[Like2Drive]

Vehicles powered by air would be great as there's always air on Earth, however, it would have to process it correctly as flat air alone wouldn't be able to power the vehicle. There probably has to be an outside source producing some people to get the car started and once the car picks up some speed this air pressure could keep powering the car.

[lovely09]

As other alternative ways to run a car without using gas or any other fuels,it needs a proper procedure to work.It will be good if it will in the market because it will be more cheap and less expensive to use.

[Green Machine]

Guy Negre, an engineer from the little town of Carros, France, discovered a breath of fresh air, both literally and figuratively. During his career designing formula one engines he became familiar with isotherm dynamics, a process that creates power by expanding air at an almost constant temperature. Negre theorized that by heating and expanding super-cooled compressed air he could power a nonpolluting car. Six years and four prototypes later, it would appear he's done it.

Negre's company, Motor Development International (MDI), created what it calls the Compressed Air Technology (CAT) car by combining a lightweight automobile body with a new type of small rear-mounted engine. The 1,500-pound frame is made from aluminum and fiberglass with four very light, steel-reinforced thermoplastic air tanks attached to the undercarriage of the car. The engine measures only one-foot square and weighs just 70 pounds, but because it propels a relatively light vehicle, it can run at 55 mph. Negre, who was interviewed through an interpreter, explains that, in the tanks, the air is both cooled to minus 100 degrees Centigrade and compressed to 4,500 pounds per square inch. Then it's injected into a small chamber between the tanks and pistons, where it's heated up by ambient outside air that forces it to expand into a larger chamber situated between the small chamber and the pistons. That heat exchange between the two chambers, he continues, creates the propulsion that drives the up-and-down strokes of the engine's four pistons. Finally, the air is passed through carbon filters like those in scuba diving tanks and expelled as pollutant-free exhaust. The dynamic is not unlike that of a spring that takes in energy when it's compressed and gives it back when it expands.
The big plusses of the air-powered car, according to Negre, are super-efficient energy consumption as well as minimum pollution and maximum affordability. Though the car seats five, it will go from zero to 50 mph in seven seconds-certainly adequate acceleration for an urban vehicle like a taxi. What's more, with fully loaded air tanks, it will take passengers about 120 miles at an average of 30 mph-again, about the right capacity for urban drivers who don't want to fill up too often.