Fluidic chevrons and configurable thermal shield for jet noise reduction
AssigneeGeneral Electric Company
InventorsPaolo Graziosi, Kevin Kirtley, Ramani Mani
Life of this patent
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Abstract
A system for jet engine noise control of a jet engine having a main jet stream exiting an exhaust nozzle and flowing along a jet axis includes a thermal acoustic shield directed at a non-zero angle relative to the jet axis. The thermal acoustic shield may be configurable about the main jet stream. The system may further include at least a fluidic chevron injected at a location relative to the nozzle exit for enhancing mixing in the main jet stream and creating a non-circular jet stream.
Claims8
A system for jet engine noise control of a jet engine having a main jet stream exiting a nozzle exit and flowing along a jet axis, the system comprising:
- a plurality of vortex generator jets configured to inject a plurality of jets of fluid at reconfigurable locations relative to the nozzle exit during different stages of a mission for creating a non-circular jet stream.
Dependencies are inferred from the claim text.