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In a combustion chamber for a gas turbine, noise absorption is achieved over a wide frequency range with simultaneous cooling of the arrangement and low space requirement by the inner wall being formed, at least in a partial region of the inner walls by at least two perforated plates arranged essent

In a combustion chamber for a gas turbine, noise absorption is achieved over a wide frequency range with simultaneous cooling of the arrangement and low space requirement by the inner wall being formed, at least in a partial region of the inner walls by at least two perforated plates arranged essentially parallel to one another, and by the distances between the perforated plates and the geometrical dimensions of the openings being selected in such a way that a plurality of mutually connected Helmholtz resonators is formed and that, in addition, further expedients are available which act to absorb noise.

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1. A combustion chamber for a gas turbine, said combustion chamber comprising inner walls inside of which hot combustion gases of a combustion zone are cooled by cooling air, said cooling air being introduced into said combustion zone through cooling air ducts outside the inner walls, said cooling a

1. A combustion chamber for a gas turbine, said combustion chamber comprising inner walls inside of which hot combustion gases of a combustion zone are cooled by cooling air, said cooling air being introduced into said combustion zone through cooling air ducts outside the inner walls, said cooling air ducts being formed by an outer wall of the combustion chamber and the inner walls, wherein, at least in a partial region of the inner walls, the inner walls are formed from at least two perforated plates arranged substantially parallel to one another, wherein a first perforated plate borders directly on the cooling air ducts and is provided with a plurality of first openings through which said cooling air from the cooling air ducts flows into an intermediate volume located behind the first perforated plate, wherein a further perforated plate is arranged behind the first perforated plate in the direction of the combustion zone, said further perforated plate being provided with a plurality of further openings, wherein the distance between the first perforated plate and the further perforated plate and the geometrical dimensions of the further openings are selected such that the openings, together with said intermediate volume present between the perforated plates, form a plurality of mutually connected Helmholtz resonators and act as noise dampers for acoustic vibrations occurring in the combustion chamber, and wherein in addition further means are present which act to absorb noise.