A burner including an acoustic damper
AssigneeSiemens Aktiengesellschaft
InventorsJan-Erik Lundgren, Jan Pettersson
Life of this patent
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Abstract
A burner of a turbomachine, particularly a gas turbine engine, has at least one burner section having an annular wall surrounding a respective section of a burner interior, the annular wall including: an annular inner surface delimiting the burner interior, and a plurality of dampening cavities for the dampening of thermo-acoustic vibrations in the burner interior, each dampening cavity being connected to the annular inner surface through at least a dampening hole. A method of manufacturing such a burner includes additive manufacturing of the annular wall as an integrally formed component, or additive manufacturing of the upstream burner section, wherein the intermediate burner section and the downstream burner section as integrally formed component.
Claims12
A burner of a turbomachine or a gas turbine engine, comprising:
- an upstream burner section for providing a first fuel and an oxygen containing fluid to an upstream end of a burner interior;
- at least one intermediate burner section having an annular wall surrounding a respective section of the burner interior;
- and
- a downstream burner section for providing a second fuel to a downstream end of the burner interior or to a combustion chamber;
- wherein the annular wall comprises:
- an annular inner surface delimiting the burner interior, and
- a plurality of dampening cavities for dampening of thermo-acoustic vibrations in the burner interior, each dampening cavity being connected to the annular inner surface through at least a dampening hole.
Dependencies are inferred from the claim text.