What is the role of a fuel nozzle in gas turbine engines?

The role of a fuel nozzle in gas turbine engines is to atomize and spray fuel for efficient combustion. This process is crucial because fuel must be finely atomized to ensure that it mixes thoroughly with air in the combustion chamber. Proper atomization helps create a homogeneous mixture, which promotes more complete and efficient combustion, leading to improved engine performance and reduced emissions.

The fuel nozzle achieves this by having a design that allows it to break the liquid fuel into tiny droplets. This atomization increases the surface area of the fuel, enabling quicker evaporation and more effective combustion when mixed with hot air in the chamber.

While filtration, cooling, and monitoring fuel pressure are important aspects of a gas turbine engine's fuel system, they are not the primary role of the fuel nozzle. The nozzle's main focus is to ensure optimal fuel delivery for combustion efficiency.