1. Air and Fuel Mixture:
- The engine's intake system draws in air.
- Fuel injectors or a carburetor introduce a precise amount of fuel into the air, creating a combustible mixture.
2. Compression:
- The piston within each cylinder moves upward, compressing the air-fuel mixture. This increases the pressure and temperature.
3. Ignition:
- A spark plug generates a spark at the precise moment.
- This spark ignites the compressed air-fuel mixture, causing it to combust rapidly.
4. Expansion:
- The combustion releases a large amount of energy, rapidly expanding the gases within the cylinder.
- This expanding force pushes the piston downward, turning the crankshaft.
5. Exhaust:
- After combustion, the exhaust gases are expelled through the exhaust system.
The key factor in combustion is the rapid chemical reaction between the fuel and oxygen in the air. This reaction releases heat and energy, driving the engine's mechanical cycle.
In simpler terms:
- The car engine takes in air and fuel.
- The mixture is squeezed and ignited.
- The explosion pushes the piston.
- This motion turns the wheels and powers the car.
