Aeronautics and astronautics – Aircraft sustentation – Sustaining airfoils
Patent
1996-12-02
1998-12-15
Barefoot, Galen L.
Aeronautics and astronautics
Aircraft sustentation
Sustaining airfoils
B64C 2300
Patent
active
058487689
ABSTRACT:
Apparatus for the control of boundary layer fluids by a suction technique, the said apparatus being adapted to form part of or attach to a fluid dynamic surface and comprising; a sandwich skin material consisting of at least two layers, an outer layer of which is in use positioned adjacent to the boundary layer fluid, the said layers of material bounding internal intercommunicating passageways to allow in use the movement of fluid to substantially all areas within the material, the outer layer being provided with a plurality of holes communicating with the internal passageways of the said sandwich skin material and a plurality of hoods or steps being fixedly attached to the outer layer of the material located such that in use said hoods or steps are downstream of said plurality of holes and each upstream of and shielding an opening in said outer layer and communicating with at least one of said internal intercommunicating passageways.
REFERENCES:
patent: 2821351 (1958-01-01), Utgoff
patent: 2841344 (1958-07-01), Stroufoff
patent: 3097817 (1963-07-01), Towzey
patent: 3309042 (1967-03-01), Edwards
patent: 3952823 (1976-04-01), Hinderks
patent: 4664345 (1987-05-01), Lurz
patent: 4671474 (1987-06-01), Haslund
"Making Large Suction Panels for Laminar-Flow Control", NTIS Tech Notes, May 1993, p. 396.
Barefoot Galen L.
British Aerospace PLC
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