Fuel is sprayed into the compressed air and ignited. The resulting explosion creates a high-velocity stream of hot gas.
By properly sourcing, configuring, and installing "The Aircraft Gas Turbine Engine and Its Operation" PDF on your devices, you will gain instant access to decades of foundational propulsion knowledge directly from the engineers who built the world's most reliable jet powerplants.
If the text appears crisp but the engine schematics are pixelated, the file was likely compressed too aggressively. Look for a higher resolution "archive quality" print download (typically 50MB to 150MB in file size).