Not exactly. As these 2 systems are mounted on 2 different rotors, this is to match the airflow entering the engine during transient periods to prevent stall. The engine is designed for full power so in this configuration the VBV doors are closed and the Variable Stator Vanes (VSV) are open to allow for maximum air flow to come into the engine. Then during deceleration for example the HP rotor deceleration is quicker than the big and heavy fan. So the fan and booster provide too much air into the HP compressor. This is why the VBV doors open to reduce the airflow entering the HP compressor.
Why is the angle of the stator vanes between the last compressor stages variable? This is truly interesting I never knew this - until now! And what does this flap do, is this the bleed air from the 9th compressor stage for the PACK units?
bleed valves open and discharge LPC air flow during engine fast decelerations. system consist 11 bleed valves and 1 master bleed vlv and ballscrew acruator interconnected by flexible shafts. master ballscrew acruator connected to the fuel gear motor and actuates by servo fuel
Kalaupun ada celah setitik jarumpun jika mesti ada reaksi apa salahnya bisa dijadikan komponen penemuan untuk kemashuran umat didunia,betul nggak....??
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Nice mechanical setup, i like what looks like a flexible shaft that seems to actuate the other bleed air doors around the engine.
Классно, спасибо.
great video keep it up
thank you
both; bleeding valves and variable stator are include and this explain how fast is the acceleration, right?
Not exactly. As these 2 systems are mounted on 2 different rotors, this is to match the airflow entering the engine during transient periods to prevent stall. The engine is designed for full power so in this configuration the VBV doors are closed and the Variable Stator Vanes (VSV) are open to allow for maximum air flow to come into the engine. Then during deceleration for example the HP rotor deceleration is quicker than the big and heavy fan. So the fan and booster provide too much air into the HP compressor. This is why the VBV doors open to reduce the airflow entering the HP compressor.
thanks
Thank you )
What kind of test was done on video, was it a wet cranking?
Dry motoring test
Thank you
Why is the angle of the stator vanes between the last compressor stages variable? This is truly interesting I never knew this - until now! And what does this flap do, is this the bleed air from the 9th compressor stage for the PACK units?
I"ve never seen VBV и VSV used both.
Brian Griffin wanted to know how planes work
Imagine drawing that!
Which engine this one?
CFM56
can anyone tell me the function of vbv system?
bleed valves open and discharge LPC air flow during engine fast decelerations.
system consist 11 bleed valves and 1 master bleed vlv and ballscrew acruator interconnected by flexible shafts. master ballscrew acruator connected to the fuel gear motor and actuates by servo fuel
@@antonabrosov8223 HPC or LPC
@@nawabshahzada7639 LPC, i made a mistake above
@@antonabrosov8223 is it functions like a turbo blow off valve in cars?
@@kerucutgaming2216 this made for gas dynamic stability
Power-Phull Béë Âîğhť
revars tharst valve
Kalaupun ada celah setitik jarumpun jika mesti ada reaksi apa salahnya bisa dijadikan komponen penemuan untuk kemashuran umat didunia,betul nggak....??
Baik itu yang berbentuk atau wujud:
-angin
-pelumasan
-BBM
-hydro pluid
Atau arus kekistrikkan