Noise absorption system having active acoustic liner

Rotary kinetic fluid motors or pumps – With sound or vibratory wave absorbing or preventing means...

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181206, 244 1N, 381 71, F01D 2504

Patent

active

059190299

ABSTRACT:
The present invention is embodied in an aircraft engine noise absorption system having a resonator cavity for absorbing incident noise except for a residue noise signal having a predominant frequency, the system comprising an actuator providing an actuator acoustic signal, a noise sensor for sensing the predominant frequency, and a controller for setting the actuator acoustic signal to the predominant frequency and varying one of a phase and an amplitude of the actuator acoustic signal to decrease the residue noise signal.

REFERENCES:
patent: 4044203 (1977-08-01), Swinbanks
patent: 4715559 (1987-12-01), Fuller
patent: 4815139 (1989-03-01), Eriksson et al.
patent: 5018203 (1991-05-01), Saywers et al.
patent: 5119427 (1992-06-01), Hersh et al.
patent: 5315661 (1994-05-01), Grossman et al.
patent: 5341857 (1994-08-01), Bravo
patent: 5355417 (1994-10-01), Burdisso et al.
patent: 5370340 (1994-12-01), Pla
patent: 5382134 (1995-01-01), Pla et al.
patent: 5423658 (1995-06-01), Pla et al.
patent: 5478199 (1995-12-01), Gliebe
patent: 5498127 (1996-03-01), Kraft et al.
patent: 5558298 (1996-09-01), Pla et al.
patent: 5590849 (1997-01-01), Pla
patent: 5618010 (1997-04-01), Pla et al.
patent: 5702230 (1997-12-01), Kraft et al.
patent: 5732547 (1998-03-01), Olsen et al.

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