A company that I have been following since the late 90's is a company called MDI, now based in Spain the company was founded in France by an inventor called Guy Negre who's background in the Auto Racing industry provided his inspiration.
MDI has created a high performance Auto mobile that runs completely on compressed air technology. In comparison to traditional gas powered engines, the compressed air based technology is infinitely superior in regards to energy used and thermodynamics.
An overview of the AirCar:
The applied science that MDI autos run on exists and is not new, in fact it had been available for a number years, but just not commercialized. Compressed air technology allows automotive powerplants to reduce their environmental footprint and save money for it's driver. After ten years of research and development, it appears that these eco-autos are ready for the marketplace.
Unlike electric, hybrid or hydrogen powered vehicles, the AirCar isn't high-priced and doesn't have a limited range as many detractors have claimed. MDI vehicles are quite affordable and feature a level of efficiency that equates favorably with currently available eco-cars. To sum up, the MD AirCars are non-expensive and feature a minimal environmental footprint, and are uncomplicated to get around cities in.
The MDI AirCar operates on a safe fuel source(compressed air) that doesn't pose a fire or explosive hazard, does not emit toxic gases and hydrocarbons, is fun to drive and reliable. They plan to release 2 versions initially, a 6 passenger sedan call the CityCat for $16,000 and a smaller 3 seat commuter-car for around $10,000
The workings of the AirCar, include an electrical pump that squeezes air into a storage tank. The air successively pumps pistons that bring the automobile up to 70 mph. The automobile can journey 50 miles at top speed on a entire tank, and further at lower speeds. They are already working on models with greater range, as well as hybrid models that combine other energy sources to provide for unlimited range. They are slightly pricier but accomplish higher speeds and longer distances by operating on a combination of compressed air and standard gas or bio-fuels gained from natural matter. MDI says the air-only models meet the requirements of virtually all urban drivers, that average merely 11 miles a day.
The single energy powerplants will be available in both Minicats and Citycats. These engines have been developed for urban center usage, where the upper limit speed is 50 km/h and where MDI thinks polluting will before long be forbidden. It is already conceivable to see cases of this in various places, such as London, where if you decide to go into the city center with gas powered automobiles, you must pay a fee.
The hybrid-type engine, has been created for the open road as well as for city driving, and will be available as an option in all MDI vehicles. The engines will run exclusively on air when driving below 50 km/h in urban centers. When the automobile is driven outside cities at rates over 50 km/h, the system will transition to fuel mode. The hybrid engine will operate on gasoline, bio fuel, bio diesel,ethanol, alcohol, etc.
Both engines will be equipped with 2, 4 and 6 cylinders, once the air tanks are emptied the driver will be able to alternate between fuel modes, as a result of the car's on board computer.
The Air-only models have Zero emissions. According to MDI the only exhaust is hot air coming from the tail pipe.
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