US 6,546,729 B2 · Damper arrangement for reducing combustion-chamber pulsations

Abstract

The invention relates to a damper arrangement for reducing combustion-chamber pulsations arising inside a gas turbine (1), having a combustion-chamber housing (8) which upstream comprises a front plate (2) with a plurality of individual burners (6) and damping elements (7, 7a, 7b) projecting through the front plate (2) and downstream is connected to a turbine stage (9) and is surrounded by a turbine housing (3) which comprises first openings (5a) which are adapted to the burners (6) and through which the burners (6) project upstream. The invention is characterized in that closable second openings (5b), through which it is possible to insert and tune the damping elements (7, 7a, 7b), are provided inside the turbine housing (9) adjacent to the first openings (5a) adapted to the burners (6).

Claims14

Dependent claims

A damper arrangement for reducing combustion-chamber pulsations arising inside a gas turbine, comprising:

a combustion-chamber housing, said combustion-chamber housing having a front plate at an upstream side;
a plurality of individual burners and damping elements projecting through the front plate;
said combustion-chamber housing being connected at a downstream side to a turbine stage and being surrounded by a turbine housing;
said turbine housing having first openings through which the burners project in an upstream direction, and closable second openings adjacent to the first openings and through which the damping elements are adapted to be inserted and tuned.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

09/988,307Filed 19 Nov 2001

Priority

DE 100 58 68825 Nov 2000

Published

US 2002/0100281 A11 Aug 2002

Granted

15 Apr 2003

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

F23M 20/005
Details of combustion chambers, not otherwise provided for , e.g. means for storing heat from flames: noise absorbing means
F05B 2260/96
Function: preventing, counteracting or reducing vibration or noise
F23R 2900/00013
Special features of, or arrangements for continuous combustion chambers; Combustion processes therefor: reducing thermo-acoustic vibrations by…
F23R 2900/00014
Special features of, or arrangements for continuous combustion chambers; Combustion processes therefor: reducing thermo-acoustic vibrations by…

Damper arrangement for reducing combustion-chamber pulsations

Life of this patent

Damper arrangement for reducing combustion-chamber pulsations

Life of this patent

Abstract

Claims14