Ultra-quiet drone
US-2024002076-A1 · Jan 4, 2024 · US
US8939713B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8939713-B2 |
| Application number | US-201213681219-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 19, 2012 |
| Priority date | May 19, 2010 |
| Publication date | Jan 27, 2015 |
| Grant date | Jan 27, 2015 |
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An aerodynamic element for an aircraft nacelle is provided that includes a fixed shroud and an intake lip axially movable relative to the shroud. The aerodynamic element is flexible and has a substantially cylindrical general shape and defines an upstream portion attached to the inner wall of the intake lip of the nacelle, and a downstream portion bearing radially against an inner face of the shroud. The downstream portion of the element includes a ring shaped bead protruding towards an outside of the aerodynamic element and an end blade which, at rest, is tilted towards the outside of the aerodynamic element in a direction of its free end.
Opening claim text (preview).
What is claimed is: 1. An aerodynamic element for an aircraft nacelle, said nacelle comprising a fixed shroud and an intake lip axially moveable relative to the shroud, said aerodynamic element being flexible and having a substantially cylindrical general shape and comprising: an upstream portion attached to an inner wall of the intake lip of the nacelle; and a downstream portion bearing radially against an inner face of the shroud such that the downstream portion is movable in…
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