This innovative Air car “is powered by compressed air, stored in a carbon-fiber tank at 30 MPa (4500 psi).” Video after the break.
The tank is made of carbon-fiber in order to reduce its weight and still remain strong. The engine has injection similar to normal piston engines, but uses a jointed connecting rod to keep the pistons at top dead center for about 70 degrees of the crankshaft’s cycle. This allows for a remarkably flat torque curve. This engine is more akin to a Stirling engine than a traditional turbine-style pneumatic motor, relying on its thermodynamics to produce power