A fan apparatus is disclosed, including a duct having an inlet opening, a fan mounted in the duct, and a plurality of louver devices positioned at the inlet opening. Each louver device has an open position and a closed position, and adjacent louver devices define a plurality of airflow channels. Each airflow channel has a curvature profile that changes as the louver devices move between open and closed positions.
UPPER SURFACE LOUVERS FOR LIFT FANS
2021-11-25
Patent
Electronic Resource
English
IPC: | B64C AEROPLANES , Flugzeuge |
Engineering Index Backfile | 1965
|Louvers for spacecraft temperature control
AIAA | 1987
|