There is no need to compress the gas from the outside, only the nitrogen in the steel cylinder needs to be recovered from the inside. Designers believe that moisture and dust in the outside air will affect the stability of automobile power system, and nitrogen is a relatively stable gas. It also has the function of braking energy recovery. When the car slows down and brakes, the inertial energy compresses the air into the air reservoir through the hydraulic pump.
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The working principle diagram of air compressor needs electric drive, but neither MDI Airbus nor Tian Xiang Airbus can escape the law of conservation of energy, because they do not have the ability to make compressed air.
Take AIR POD developed by MDI as an example. Equipped with a compressed air tank with a compression capacity of 300L, made of steel. The compressed air stored in the tank can drive the air pod to travel 120 km, and the top speed of the double-cylinder version can reach 80 km/h.
In terms of safety, the pressure of compressed gas used in pneumatic vehicles is usually 30MPa, and the compressed gas tank made of ordinary steel can meet the requirements of safe storage. Considering the use and place of pneumatic vehicles, there is no need to worry about the storage safety of compressed air tanks.
Before the compressed gas in the car is used up, the air-powered car must be inflated at the nearest compressed air station. Compressed air needs to consume electric energy, which comes from nuclear power plants, thermal power plants, hydropower stations and so on. Therefore, in essence, aerodynamic vehicles still can't get rid of traditional energy sources.
Therefore, we need to have a clear understanding of pneumatic vehicles. At present, air-powered vehicles can't get rid of traditional energy sources. Aerodynamic cars are by no means "running without traditional energy" as mentioned in the video of friends circle. If the compressed air base station is out of power and can't continue to compress air, then the aerodynamic cars running in the street may be squatting.
Baidu encyclopedia-aerodynamic aircraft