In how many moves, or cycles, does one engine cycle take place? How many revolutions does the engine shaft do?

When a combustible mixture is combusted in an internal combustion engine, the temperature at first rises significantly to 1600 ° C ~ 1800 ° C and the pressure on the piston increases, while the gases expand, push the piston and crankshaft, doing mechanical work. The gases are cooled in this case, since part of their internal energy is converted into mechanical energy.