Active device for attenuating acoustic emissions for a turbojet engine including controlled turbines

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11401866
APP PUB NO 20200400076A1
SERIAL NO

17014527

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An active device for attenuating the acoustic emissions of an aircraft turbojet engine includes circulation conduits for a pressurized air flow rate supplying rotary elements each having a pulsation system for the delivered air. The rotary elements are controlled in amplitude and phase and deliver, to outlet diffusers, a pulsed air flow rate with a pulsation at the frequency of the noise to be attenuated having an amplitude and a phase adjusted according to a local feedback law with microphones to attenuate the radiated acoustic power.

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Patent Owner(s)

Patent OwnerAddress
SAFRAN NACELLESROUTE DU PONT VII GONFREVILLE-L'ORCHER 76700

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Allard, Ambre Gonfreville l'Orcher, FR 1 0
Berry, Alain Gonfreville l'Orcher, FR 5 67
Drant, Julien Gonfreville l'Orcher, FR 1 0
Goulard, Jean-Baptiste Gonfreville l'Orcher, FR 2 4
Hurlin, Hervé Gonfreville l'Orcher, FR 9 29
Micheau, Philippe Gonfreville l'Orcher, FR 10 53
Rami, Jean-Paul Gonfreville l'Orcher, FR 11 49
Robert, Raymond Gonfreville l'Orcher, FR 3 10
Versaevel, Marc Moissy Cramayel, FR 28 42

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