An air injection assembly for an aircraft is provided. The aircraft includes a fuselage extending between a forward end and an aft end along a longitudinal direction and a boundary layer ingestion fan mounted to the fuselage at the aft end of the fuselage. The air injection assembly includes at least one injection port defined on a surface of the fuselage at a location upstream of the boundary layer ingestion fan. A supplemental airflow is provided through a fluid passageway to the injection port where it is ejected to displace at least a portion of relatively higher velocity boundary layer airflow. In this manner, the airflow entering boundary layer ingestion fan is more uniform, has less swirl distortion, and has a lower average velocity.
AIRCRAFT HAVING AN AFT ENGINE AND AIR INJECTION ASSEMBLY FOR SUCH AN AIRCRAFT
LUFTFAHRZEUG MIT EINEM HECKMOTOR UND LUFTEINSPRITZANORDNUNG FÜR SOLCH EIN FLUGZEUG
AÉRONEF AVEC MOTEUR ARRIÈRE ET ENSEMBLE D'INJECTION D'AIR POUR UN TEL AÉRONEF
2023-05-24
Patent
Elektronische Ressource
Englisch
AIRCRAFT HAVING AN AFT ENGINE AND AIR INJECTION ASSEMBLY FOR SUCH AN AIRCRAFT
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