Method and apparatus to decrease combustor acoustics

Details Method and apparatus to decrease combustor acoustics Method and apparatus to decrease combustor acoustics

2007-09-25

2007-09-25

Freay, Charles G (Department: 3746)

Power plants

Combustion products used as motive fluid

Process

C060S725000, C431S114000

Reexamination Certificate

active

10663008

ABSTRACT:
A method for operating a gas turbine engine includes coupling an anti-resonant frequency system to a combustor including a premixer assembly and a plurality of damper tubes, and adjusting the anti-resonant frequency system until the anti-resonant frequency of the damper tubes is approximately equal to the combustor resonant frequency.

REFERENCES:
patent: 5373695 (1994-12-01), Aigner et al.
patent: 5685157 (1997-11-01), Pandalai et al.
patent: 6205765 (2001-03-01), Iasillo et al.
patent: 2002/0100281 (2002-08-01), Hellat et al.
patent: 2288660 (1995-10-01), None
patent: WO93/10401 (1991-11-01), None

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