Aircraft engine pod with acoustic attenuation

Details Aircraft engine pod with acoustic attenuation Aircraft engine pod with acoustic attenuation

2005-05-24

2005-05-24

San Martin, Edgardo (Department: 2837)

Acoustics

Sound-modifying means

Muffler, fluid conducting type

C181S210000, C181S213000, C244S00100R, C415S119000

Reexamination Certificate

active

06896099

ABSTRACT:
An internal duct of an aircraft engine pod may include a fan and a tubular air intake having a first acoustic attenuation internal tubular piece. The first acoustic attenuation internal tubular piece is acoustically homogeneous, is of the resonator type, and has no internal assembly fish-plate. Additionally, the internal duct may include a tubular fan casing and a tubular transition part for connecting the air intake to the fan casing. An internal face of the tubular transition part is acoustically homogeneous also. Moreover, the internal face of the first acoustic attenuation internal tubular piece and the internal face of the tubular transition part are disposed in aerodynamic continuity.

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Preliminary Search Report dated Jul. 18, 2003 (English translation attached).

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