In a turbofan engine, which component is responsible for compressing air?

In a turbofan engine, the component responsible for compressing air is the compressor. The primary function of the compressor is to increase the pressure of the incoming air before it enters the combustion chamber. This process is crucial because the high-pressure air mixed with fuel allows for more efficient combustion, ultimately contributing to the engine's thrust production.

The compressor typically consists of multiple stages of rotating blades and stationary vanes that progressively compress the air as it flows through. This mechanical arrangement utilizes aerodynamic principles to effectively increase the air's pressure and density, preparing it for the combustion process that follows.

In contrast, the fan primarily draws in large quantities of air and is essential for generating thrust, while the turbine extracts energy from the high-temperature, high-pressure gases produced in the combustion process to drive the compressor. The accessory gearbox, on the other hand, is responsible for powering various auxiliary systems but does not play a direct role in compressing air.