The process begins as air is drawn into the engine through the air intake.
2. Compressor
Next, the air flows into the compressor, where a series of rotating blades compress it to a higher pressure. This compression causes the air to become hotter.
3. Combustion Chamber
The compressed air then enters the combustion chamber, where fuel is injected and ignited. The combustion of fuel causes a massive increase in temperature and pressure, generating hot gases.
4. Turbine
The hot gases from the combustion chamber flow through the turbine, where they cause a series of turbine blades to rotate. The rotation of the turbine blades extracts energy from the hot gases and is used to drive the compressor and other components of the engine.
5. Exhaust
After passing through the turbine, the hot gases are exhausted through the engine's nozzle. The high velocity of the exhaust gases helps to propel the aircraft forward.
The Bypass System
In turbofan jet engines, a portion of the air drawn into the engine (often referred to as bypass air) bypasses the combustion chamber and instead flows through a separate duct alongside the core engine.
This bypass air mixes with the exhaust gases from the turbine, creating a cooler, larger airflow. The increased mass flow of the bypass air provides additional thrust and helps improve fuel efficiency.
