Assembly for reducing noise in turbofan engines

Details Assembly for reducing noise in turbofan engines Assembly for reducing noise in turbofan engines

2005-01-20

2010-10-26

Donels, Jeffrey (Department: 2832)

Acoustics

Sound-modifying means

Sound absorbing panels

C181S213000, C181S286000

Reexamination Certificate

active

07819224

ABSTRACT:
An assembly is provided for reducing the noise that is generated in the heating gas zone by turbofan engines. The assembly consists of an acoustically absorbent cladding in the heating gas flow channel of the turbofan engine. The cladding includes a plurality of neighboring cavities, into each of which four horns extends. The mouths of the horns are fixed to a perforated cover sheet. The cover sheet forms one wall of the heating gas flow channel.

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International Search Report dated Jun. 15, 2005 with English translations of the pertinent portions (fourteen (14) pages).

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