18892293. FAN APPARATUS WITH LIFT FAN AND LOUVERED COVER (The Boeing Company)
FAN APPARATUS WITH LIFT FAN AND LOUVERED COVER
Organization Name
Inventor(s)
Michael J. Duffy of Saint Charles MO (US)
Oliver Daniel Ensslin of Luzern (CH)
FAN APPARATUS WITH LIFT FAN AND LOUVERED COVER
This abstract first appeared for US patent application 18892293 titled 'FAN APPARATUS WITH LIFT FAN AND LOUVERED COVER
Original Abstract Submitted
The present disclosure provides systems, apparatuses, and methods relating to a fan apparatus including a lift fan mounted in a duct and a cover for the lift fan. In some examples, a fan apparatus has a louvered cover including louvers having different chord lengths and/or different projection distances relative to one another when the louvers are in an intermediate (transitional) position. In some examples, a fan apparatus includes a louver actuation assembly configured to move louvers of the fan apparatus rotationally and translationally between open and closed positions. In some examples, a fan apparatus includes a fluid-actuated sealing assembly configured to form a seal between a sealing member and a cover, such as a louvered cover.