Fan and compressor noise attenuation

Details Fan and compressor noise attenuation Fan and compressor noise attenuation

2005-12-06

2005-12-06

Chin, Vivian (Department: 2644)

Electrical audio signal processing systems and devices

Binaural and stereophonic

Pseudo stereophonic

C381S071100, C181S204000, C415S119000

Reexamination Certificate

active

06973193

ABSTRACT:
An exciting sound wave generator is positioned within a nacelle of a jet engine at its inlet to generate an exciting sound wave having a primary frequency generally different from a frequency of the primary tone of the noise. The exciting sound wave is used to modulate the primary tone of the noise and, therefore, distribute sound energy of the noise from the primary tone to a broad range of side bands so that the amplitude of the primary tone of the noise is reduced.

REFERENCES:
patent: 3693749 (1972-09-01), Motsinger et al.
patent: 4199295 (1980-04-01), Raffy et al.
patent: 4255083 (1981-03-01), Andre et al.
patent: 4805733 (1989-02-01), Kato et al.
patent: 5182774 (1993-01-01), Bourk
patent: 5293578 (1994-03-01), Nagami et al.
patent: 5478199 (1995-12-01), Gliebe
patent: 5515444 (1996-05-01), Burdisso et al.
patent: 5692702 (1997-12-01), Andersson
patent: 5707206 (1998-01-01), Goto et al.
patent: 5801341 (1998-09-01), Newell et al.
patent: 5821472 (1998-10-01), Zwernemann
patent: 5966452 (1999-10-01), Norris
patent: 6434239 (2002-08-01), DeLuca
patent: 805431 (1997-11-01), None

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