Device for damping thermoacoustic pressure vibrations

Details Device for damping thermoacoustic pressure vibrations Device for damping thermoacoustic pressure vibrations

1996-10-03

1998-07-28

Freay, Charles G.

Power plants

Combustion products used as motive fluid

Combustion products generator

431 19, 431114, F02C 724

Patent

active

057848890

ABSTRACT:
A device for damping thermoacoustic pressure vibrations in a combustion chamber (1), in particular in the combustion chamber of a gas turbine, includes a pressure sensor (6) which is connected to the input of a regulating device (10), the regulating device (10) is connected at its output to a device for electrically controlling the flame in the combustion chamber (1). This device for electrically controlling the flame includes a voltage source (11) and an electrode (14). The electrode (14) is connected to a heat shield (12) which surrounds the outflow side of a burner (3) in an annular manner.

REFERENCES:
patent: 4111636 (1978-09-01), Goldberg
patent: 4644783 (1987-02-01), Roberts et al.
patent: 5428951 (1995-07-01), Wilson et al.
patent: 5498127 (1996-03-01), Kraft et al.

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