1: First supply compressed air to piston A, under the action of air pressure, the piston is transmitted through the roller ring, generating a rotating torque on the crankshaft, and the crankshaft rotates in a counterclockwise direction;

2: After turning to a certain angle, piston A stops working, the gas distribution valve supplies air to piston B, and piston B pushes the crankshaft to rotate and then gives piston C;

3: Then supply air to piston D, and then to piston E;

4: If a single piston is in a non-supplied air state, it will be exhausted outward through the gas distribution valve; In this way, the air motor can run continuously.

Obviously, if piston B is supplied first, in the opposite direction of the foregoing, the supply sequence will change to BADCE, and the crankshaft rotates clockwise.