An Air Car You Could See in 2009: ZPM’s 106 MPG Compressed-Air Hybrid
Compressed-Air Powered cars could take you over 800 miles on a single fill-up, at speeds of up to 96 mph. They should refuel in less than 3 minutes, and at speeds over 35 mph emit about half the CO2 of a Toyota Prius. Best part? You could see them in the US at the end of next year.
Car-tech aficionados may already be familiar with Zero Pollution Motor’s (ZPM) compressed-air powered car. For those that haven’t heard of it yet, read on:
“The compressed air vehicle is a new generation of vehicle that finally solves the motorist’s dilemma: how to drive and not pollute at a cost that is affordable!”
What happens when you replace the explosions in your car’s combustion chamber with clean compressed air? Well, as long as you lighten things up by replacing heavier parts with aluminum, you end up with a clean, efficient way to power a vehicle.
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The world’s first commercial compressed-air powered vehicle is currently being produced by India’s largest automaker, Tata Motors, who is licensing the technology from European-based company MDI (a company powered by the innovation of ex-Formula One engineer Guy Nègre). They anticipate having about 6000 of these vehicles on city streets in India in 2008.
How does an Air Car Work?
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Although potentially revolutionary it really isn’t that complicated. What a compressed-air car does is use the force of super-compressed air to move the engine’s pistons up and down, as opposed to explosions produced from injecting a small amount of fuel.
To get things moving on compressed air, weight reduction is a top priority. MDI’s aluminum-based engine weighs half what a normal engine does, and the frame is also built out of lightweight materials (US version will be aluminum?).
ZPM’s US model will store about 3200 cubic feet of compressed air in carbon fiber tanks at 4500 psi. Carbon fiber tanks are used for safety reasons since they tend to split open (as opposed to explode) when punctured.
Compressed air from the tanks will run directly to the engine under speeds of 35 miles per hour. That means that under 35 mph the car qualifies as a zero emissions vehicle. At higher speeds the engine will burn a small amount of fuel to create more compressed air, sort of like how a plug-in hybrid like the Chevy Volt produces on-the-fly electricity. The hybrid air-car setup should be able use any number of fuels, including gasoline, propane, or ethanol.
1 tank of air + 8 gallons of gas = 848 mile range
The car’s compressed air tank can be refilled in about 3 minutes from a service station. To fill it up at home the car would be plugged in, where an onboard compressor would refill the tank in about 4 hours, at an electrical cost of about $2.
If you aren’t sure whether turning electricity into compressed air is really that clean, here are some numbers: at speeds over 35 mph the air car emits about half the CO2 per mile as a 2007 Toyota Prius (0.141lbs of CO2 per mile, while that the Toyota Prius emits 0.34 lbs of CO2 per mile).
Will we actually see a US-model Air Car in 2009/10?
New York startup ZPM, like Tata motors, has licensed technology from Luxembourg-based MDI. MDI also has plans to release these cars in Europe in 2-, 4-, and 6-cylinder models, starting under $15,000.
Despite lightweight construction that could be of concern for passing US safety tests, it appears that air car technology could be available in the US in late 2009. ZPM told PopularMechanics.com earlier this year that it expects to produce the first US model air car at the end of 2009 or early 2010. (Btw, ZPM’s model is also a candidate for the $10 million Automotive X Prize.)
ZPM wants to produce a 6-seater, 75-hp model with a 1000 mile range at 96 mph, all for just $17,800.
The big question I think we all have is: will this car make it through US safety testing? ZPM’s website says that air car models will meet the same safety specifications of all cars driven in the US. As with most of these new hyper-efficient models we’ve seen (like Aptera’s Typ1 or VW’s 1L Car), ZPM claims the vehicle’s “tubular body provides increased resistance in the event of a crash.” The car will also come with Air Bags and ABS braking.
It’s another case of wait-and see, and we can only hope ZPM follows through.
For more info, check out a great youtube video about air cars (embedded below).
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Photo Credit: Zero Pollution Motors
Unfortunately these MDI air cars have been one year away for well over a decade. I can remember when they were just a year away from being introduced to the streets of Paris, then it was South Africa, then Mexico, and here it is again. None of them have materialised as commercial products as there are serious technical limitations on the concept.
All you need to know about the compressed air concept is here, http://www.diyelectriccar.com/blogs/Photos/Goofy%20Air%20Car.html
Good informative article. Thanks.
Might I suggest, though, that in the future you put metric equivalents next to your miles/pounds/cubits etc. It would make your content more digestible to about 94% of the world’s population, including the engineering community in the US.
baah.. in Italy and a half Europe this project has bees presented many times since 1980.
But they get money from investors and then just disappeared..
Hope Better.
and.. mhh… Energy for compress the air.. where does it came from..
Arabian Lords.. Fuck you!
This idea could’ve been done long back like the elecrtic car GM destroyed to save what was left of the suv auto industry. Who’d figure fuel would go up so much. It makes GM look stupido compared to it’s competition because it has no hope in creating any equivalent vehicles to HONDA and TOYOTA. The demise of GM is NYE it shall occur within 3 years.
Interesting vehicle; but can’t the same type of tank store hydrogen or another fart fuel also?
This is bull. It takes more energy to compress the air into the tank than you will get from releasing it. All you do is move the emissions from the car exhaust to the chimney of a coal fired power station.
This technology would be more appropriate when we have greater capacity to produce electricity from clean energy sources. Until then it does nothing to help. Not to mention the safety concerns associated with having a huge tank of heavily compressed gas under the bonnet. I wouldn’t like to be in a crash involving one of those.
An Air Car You Could See in 2009: ZPMs 106 MPG Hybrid | nerdd.net…
\r\nCar-tech aficionados may be familiar with Zero Pollution Motors compressed-air powered car. For…
Nice, anything over $100 fill ups is starting to look good!
http://www.FireMe.To/udi
I going to be very very very expensive like oh…..$90,000!!!!!!! or more.
I would think if you wanted, you could store the air in tanks. Then release the air to turn a turbine, which connected to the axle through a reduction gear. Use the throttle to control the air being released. No need for an engine at all.
@Dan - agreed, some rotary drive system similar to an air tool or a hydraulic motor would seem better.