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1. EP2286092 - WING-TIP DEVICE FOR THE TIP OF A WING, THE BLADE OF A WIND GENERATOR OR OF A MARINE GENERATOR FOR REDUCING OR EVEN CANCELLING WHAT ARE KNOWN AS WING TIP VORTICES

Office European Patent Office
Application Number 09750017
Application Date 12.05.2009
Publication Number 2286092
Publication Date 23.02.2011
Publication Kind B1
IPC
F15D 1/10
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
DFLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
1Influencing the flow of fluids
10around bodies of solid material
B64C 23/06
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
CAEROPLANES; HELICOPTERS
23Influencing air-flow over aircraft surfaces, not otherwise provided for
06by generating vortices
CPC
B64C 23/065
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
CAEROPLANES; HELICOPTERS
23Influencing air-flow over aircraft surfaces, not otherwise provided for
06by generating vortices
065at the wing tips
F03D 1/065
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
DWIND MOTORS
1Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
06Rotors
065characterised by their construction, i.e. structural design details
F15D 1/10
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
DFLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
1Influencing flow of fluids
10around bodies of solid material
F05B 2240/307
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
2240Components
20Rotors
30Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
307Blade tip, e.g. winglets
Y02E 10/72
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
10Energy generation through renewable energy sources
70Wind energy
72Wind turbines with rotation axis in wind direction
Y02T 50/10
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
50Aeronautics or air transport
10Drag reduction
Applicants HUGUES CHRISTIAN
Inventors HUGUES CHRISTIAN
Designated States
Priority Data 0802599 14.05.2008 FR
Title
(DE) FLÜGELSPITZENVORRICHTUNG FÜR EINE FLÜGELSPITZE, LAUFSCHAUFEL EINER WINDKRAFTANLAGE ODER WELLENKRAFTANLAGE ZUR MINIMIERUNG BZW. UNTERDRÜCKUNG DES ALS FLÜGELSPITZENWIRBEL BEKANNTEN PHÄNOMENS
(EN) WING-TIP DEVICE FOR THE TIP OF A WING, THE BLADE OF A WIND GENERATOR OR OF A MARINE GENERATOR FOR REDUCING OR EVEN CANCELLING WHAT ARE KNOWN AS WING TIP VORTICES
(FR) DISPOSITIF D'EXTREMITE D'AILE, DE PALE D'EOLIENNE OU D' HYDROLIENNE PERMETTANT DE DIMINUER VOIRE D'ANNULER LES TOURBILLONS MARGINAUX DITS VORTEX
Abstract
(EN)
Wing-tip device for the tip of a wing or the blade of a wind generator or of a marine generator that makes it possible to reduce or even cancel what are known as wing-tip vortices. In the case of a wind generator, the result provides a start-up with less wind, control and energy efficiency that are highly productive throughout its use while at the same time significantly reducing the noise caused by the vortex.

(FR)
Dispositif d'extrémité d'aile ou de pale d'éolienne ou d' hydrolienne permettant de diminuer voire annuler les tourbillons marginaux dits vortex. Dans le cas d'une éolienne le résultat donne un démarrage avec moins de vent, une régulation et un rendement énergétique très productifs pendant toute son utilisation tout en diminuant significativement le bruit provoqué par le vortex.