DEVICE WITH GRATINGS FOR EJECTING MICROJETS IN ORDER TO REDUCE THE JET NOISE OF A TURBINE ENGINE

DEVICE WITH GRATINGS FOR EJECTING MICROJETS IN ORDER TO REDUCE THE JET NOISE OF A TURBINE ENGINE

A device for reducing the jet noise of a turbine engine includes an outer cover having an inside wall defining the outside of an annular passage for passing a bypass stream from the engine, the wall of the outer cover including a plurality of microjet circuits, each including intakes for taking a ga...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MARDJONO, Jacky, CHANEZ, Philippe, GONZALEZ, Jérémy, KOENIG, Maxime, VERSAEVEL, Marc, YESILCIMEN, Henri, ZAGANELLI, Franck
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BLASTING
COMBUSTION ENGINES
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
JET-PROPULSION PLANTS
LIGHTING
MECHANICAL ENGINEERING
WEAPONS
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Beschreibung
Zusammenfassung:A device for reducing the jet noise of a turbine engine includes an outer cover having an inside wall defining the outside of an annular passage for passing a bypass stream from the engine, the wall of the outer cover including a plurality of microjet circuits, each including intakes for taking a gas stream from the bypass stream flow passage and leading to a single feed duct, which in turn opens out into the trailing edge of the outer cover via at least one ejection grating suitable for splitting the intake gas stream into a plurality of gas streams of right sections of dimensions less than a right section of the feed duct.