Turbine engine comprising an exhaust-gas guide cone with a sound suppressor
AssigneeTurbomeca
InventorsEric Jean-Louis Bouty, Pierre-Luc Regaud, Antoine Vallon
Life of this patent
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Abstract
A gas turbine engine, in which gases flow upstream to downstream, including a combustion chamber, a high-pressure turbine placed downstream from the combustion chamber, arranged so as to receive combustion gases from the combustion chamber, a free turbine, and an exhaust-gas guide cone attached to the free turbine downstream from the free turbine, the turbine engine emitting sound waves during operation. The guide cone includes a sound suppressor, for example with a Helmholtz resonator structure, with a resonant cavity and a resonator neck in communication with an opening, arranged so as to suppress the sound waves emitted by the turbine engine.
Claims8
1-7. (canceled)
A gas turbine engine through which gases flow from upstream to downstream, comprising:
- a combustion chamber;
- a high-pressure turbine positioned downstream of the combustion chamber configured to receive combustion gases emanating from the combustion chamber;
- and
- a free turbine and a cone for guiding the exhaust gases which is fixed to the free turbine downstream thereof, the turbine engine emitting sound waves as it operates,
- wherein the guide cone comprises an interior resonant cavity into which extends a neck configured to place the resonant cavity of the guide cone in communication with an outside of the guide cone to form a noise attenuator having a Helmholtz resonator structure, configured to attenuate the sound waves emitted by the turbine engine.
Dependencies are inferred from the claim text.