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Logo PCT Publication number: WO02083497  
Publication Date: 24.10.2002
N° of registration: WOFR0201232 Date of registration: 09.04.2002
N° de priority: FR01/04998 Date de priority: 11.04.2001
Indice principal CIB: B64C-023/06
Applicant(s): HUGUES, Christian


CYLINDRICAL WING TIP WITH HELICAL SLOT

The invention concerns a device having the shape of a spiral and/or helical slot cylindrical cavity (15) for reducing induced drag, tip vortex and to increase lift-drag ratio. The device securely fixed to the wing tip (10) or securely articulated to said wing tip, can be adapted to all profiles, in particular to aeroplane wings, to gliders, to helicopter blades

and to driving, pusher or propelled airscrew tips such as wind turbine blades or for craft such as boats or submarines using lift or steering in their three-axis movement, vertical, horizontal and yawing. For existing rates of efficiency, the invention enables the use of low traction systems, longer and faster trips while consuming less energy or while producing more as with wind turbines for example, the use of greater loads, the increase and approach of aerodrome or airport transit/landing/take-off traffic more safely. When used in reverse (active surface/passive surface) on high-speed land vehicles or racing cars, said device fixed to each wing tip, produces a result inversely proportional to its speed. The faster the vehicle runs the less drag it produces and the more it adheres to the ground.

Designated States: AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VN YU ZA ZM ZW GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

schéma : 02083497A1




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