The practical application of the Otto cycle is the four-stroke engine, which completes a 热力学 cycle in four distinct piston movements (strokes). These are: 1. Intake (suck), where the air-fuel mixture is drawn in; 2. Compression (squeeze), where the mixture is compressed; 3. Power or Combustion (bang), where ignition pushes the piston down; 4. Exhaust (blow), where burnt gases are expelled.





