How does TurboJet, TurboFan, TurboProp and a TurboShaft Works ! what is the difference between them?

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The core purpose of all these different types is to produce Thrust. The differences lie in how the engines produce thrust or power.

* Turbojet engines produce thrust by accelerating air through the core of the engine and out the exhaust. All of the air that enters the engine passes through the engine. It moves a small volume of air at high velocities.

* Turbofan engines produce thrust primarily by driving a large fan in front of the engine. Most of the air that goes through the fan actually goes around the core of the engine, with only a small amount of thrust created by the air leaving the exhaust. The fan moves a large volume of air at lower velocities than the air coming out of the exhaust.

* Turboprop engines produce thrust by driving a propeller. Little or no thrust is derived from the exhaust of the engine. The propeller is in line with the core of the engine and creates thrust the way any propeller does.

* Turboshaft engines produce power by driving a shaft, typically giving power to a gear box in the aircraft/ship/machinery that is being powered that powers something other than a propeller (helicopter rotors, generator, etc).