Flexible sleeve for adjustable fan duct nozzle
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 8, 2023
Grant Date -
N/A
app pub date -
Feb 4, 2021
filing date -
Mar 21, 2018
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A ducted fan housing for directing a duct flow includes an annular cowling and an adjustable fan duct nozzle. The nozzle includes a flexible sleeve having rigid areas arranged circumferentially around the nozzle orifice and connected by flexible areas so as to form a unitary sleeve structure. The rigid areas are radially moveable between a normal configuration in which the orifice is smaller and a dilated configuration in which the orifice is larger. A drive mechanism uses drive elements to move at least some of the rigid areas between the configurations to adjust the size of the orifice. The rigid areas may be constructed from laminated graphite and epoxy, and the flexible areas may be constructed from laminated graphite and soft resin. If the housing includes a thrust reverser, then a flexible joint area extends circumferentially around the housing and connects the flexible sleeve to a thrust reverser cowl.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2021 Application Filing Year
- F02K Class
- 347 Applications Filed
- 209 Patents Issued To-Date
- 60.24 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- F02K Class
- 0 % this patent is cited more than
- 2 Age
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