What is a turbo fan engine?

A turbofan engine is a type of jet engine in which a large fan is driven by a gas turbine. The fan is located at the front of the engine and accelerates a large mass flow of air. This air then passes through the engine's core, where it is compressed by the compressor, mixed with fuel, and burned. The hot gases produced by combustion expand through the turbine, driving the fan and generating thrust.

Turbo fan engines are more efficient than turbojet engines, which do not have a fan. This is because the fan helps to accelerate the air entering the engine, which increases the pressure ratio and efficiency of the compression process. Turbo fan engines also produce less noise than turbo jet engines, as the fan helps to reduce the velocity of the exhaust gases.

Turbo fan engines are the most common type of jet engine used in modern commercial and military aircraft. They are also used in some industrial and marine applications.