Air-PoweredVehicle (APV) is often called pneumatic vehicle.It USES high pressure compressed air as the power source and air as the medium. When running, the pressure stored in compressed air can be converted into other forms of mechanical energy (automobile kinetic energy).
Such as liquid air and liquid nitrogen absorption of heat expansion work for other gas vehicles should also belongs to the category of the pneumatic motor 1 working principle of the pneumatic motor and the traditional automotive biggest difference lies in the power source of different forms of the overall structure of the engine can still adopt traditional auto mode, the existing structure is main or reciprocating piston type, rotary piston forms, etc.
The chamber and its corresponding devices are removed, and the engine is powered purely by compressed air.
The structure of compressed air engine can also be reciprocating piston type, rotary piston type and air motor type, etc. Currently, only reciprocating piston type structure is reported.
The power distribution mode of compressed air power engine includes series mode, parallel mode and series and parallel hybrid mode.The power distribution shown is in series mode. The air force between cylinders is connected in series. The remaining pressure of the upper cylinder is the starting power of the next cylinder.The structure size of the lower action cylinder is larger, but the power utilization rate is higher and the heat exchange is more sufficient.In the parallel mode of power distribution, the aerodynamic force between cylinders is the same as the initial force of different cylinders connected in parallel.The structure size of the parallel cylinder is the same. The output of strong force is stable, but the residual pressure is a little high.
Comprises an intake compression cylinder, an expansion exhaust cylinder and a spherical constant volume combustion chamber.It can switch between fuel combustion power and compressed air power through electronic control device.If the spherical constant capacity sn storage pressure is set, the mechanical efficiency can be improved to reduce exhaust loss and pressure loss, and energy recovery and full utilization can be carried out.
City taxis based on compressed air engines are being promoted in Johannesburg and Mexico City, South Africa.