# US 8,464,536 B2 · Gas turbine combustion chamber

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- Number: US 8,464,536 B2
- Document ID: US8464536B2
- Status: Granted
- Kind: B2
- Application number: 13/414,051
- Filed: 2012-03-07
- Published: 2012-09-20
- Granted: 2013-06-18
- Earliest claimed: 2011-03-15
- Assignees: Siemens Aktiengesellschaft
- Applicants: Andreas Böttcher; Olga Deiss
- Inventors: Andreas Böttcher; Olga Deiss
- Web page: https://patentgrep.com/patent/US8464536B2

## CPC

- F23R 3/00: Continuous combustion chambers using liquid or gaseous fuel
- F23M 20/005: {Noise absorbing means}
- F23D 2210/00: Noise abatement
- F23R 2900/00014: Reducing thermo-acoustic vibrations by passive means, e.g. by Helmholtz resonators
- F23R: GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS (fluidised bed combustion apparatus specially adapted for operation at superatmospheric pressures F23C10/16)
- F23M: CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23D: BURNERS

## Abstract

A gas turbine combustion chamber is provided. The gas turbine includes a combustion chamber interior and a combustion chamber wall which has a substantially rotationally symmetrical cross-section, wherein on the side of the combustion chamber wall facing away from the combustion chamber interior there is arranged over the entire cross-sectional circumference of the combustion chamber wall a corrugated component which, in combination with the combustion chamber wall, embodies a plurality of separate resonance chambers and wherein openings are incorporated in the combustion chamber wall in such a way that a fluidic connection is established in each case between the combustion chamber interior and one of the resonance chambers and wherein the corrugated component has two locking rings which are connected to the combustion chamber wall in order to seal off the resonance chambers.

## Claims

### Claim 1

A gas turbine combustion chamber, comprising:
a combustion chamber interior and a combustion chamber wall which has a substantially rotationally symmetrical cross-section; and
a corrugated component,
wherein the corrugated component is arranged on an exterior side of the combustion chamber wall facing away from the combustion chamber interior over an entire cross-sectional circumference of the combustion chamber wall,
wherein the corrugated component, in combination with the combustion chamber wall, embodies a plurality of separate resonance chambers,
wherein a plurality of openings are incorporated in the combustion chamber wall in such a way that a fluidic connection is established in each case between the combustion chamber interior and one of the resonance chambers, and
wherein the corrugated component includes two locking rings which are connected to the combustion chamber wall in order to seal off the resonance chambers.

### Claim 2 (depends on 1)

The gas turbine combustion chamber as claimed in claim 1,
wherein at least two of the openings present in the combustion chamber wall have a different cross-section, each of the at least two openings having a separate fluidic connection to at least two separate resonance chambers.

### Claim 3 (depends on 1)

The gas turbine combustion chamber as claimed in claim 1,
wherein the corrugated component includes corrugation troughs between the resonance chambers, and
wherein the corrugated component is welded and/or soldered to the combustion chamber wall in the corrugation troughs.

### Claim 4 (depends on 1)

The gas turbine combustion chamber as claimed in claim 1, wherein the corrugated component includes drilled holes.

### Claim 5 (depends on 1)

The gas turbine combustion chamber as claimed in claim 1, wherein at least two separate resonance chambers have different volumes.