How a jet engine works

This is an animation of a duel spool, high bypass turbofan commercial jet engine.

Category:

Education

Tags:

• jet
• engines
• turbine
• Pratt&Whitney

[Gary190tube]

this is the best explanation I've seen so far.

[donperry1]

15 dislikes will have to take a boat

[archergareth]

Ahh the low pressure Turban.

Not a Turbine.

[Dankniggah420]

@XEziOXxx

jet fuel?

[jetengine7]

@coastermania17 @ricktbdgc The turbines don't do any sucking. They are powered by the exhaust as it flows through them. The reason the fuel/air mixture does not go back out the front of the engine is because of the enormous pressure coming from the compressors and forcing the exhaust out the back of the engine.

[jetengine7]

@EasternMerchant Jet engines require very high quality/expensive materials and very precise manufacturing and tolerances because they spin so fast, and have very high pressures and temperatures. If you don't use the proper materials, you will have a catastrophic failure like a compressor disc explosion due to centrifugal force or the turbines will melt. Also, if there is even a slight imbalance in the rotating parts, it will practically self-destruct due to the high speed.

[jetengine7]

@pogpogcasino The fuel/air mixture is ignited by igniters which produce electrical sparks. Then once the engine is started, it stays on because the fire in the combustor continuously ignites the incoming air/fuel mixture.

[jetengine7]

@XEziOXxx The turbines in the rear of the engine power the fan and compressors at the front.

[XEziOXxx]

what powers the spin of the blades?

[flipperpump52891]

mr.muhammad ayub bajwa making new design jet engine ayub_4_victoria jet engines for aero space technology.

[MrIfixplanes]

@jefferymiller59 I'm sorry but that is not strictly correct, APU does stand for Auxillary Power Unit but they are situated in the tail cone of most modern airliners. The APU drives a Load Compressor which provides pneumatic pressure which is then ducted to the engine. A pneumatically driven motor is attached to the engine accessory gearbox, the accessory gearbox is attached to the HP spool via shafts. Starter turns gearbox, gearbox rotates HP shaft.

[MrIfixplanes]

@pogpogcasino The flame is started by ignitors, pretty much the same as a spark plug in a car. But once the flame is lit it burns continously, like a blow torch for example. Combustion chambers are complex in design, there's quite a lot to keeping that flame from blowing out.