CA2136000A1 - Wing with a wing grid as the end section - Google Patents
Wing with a wing grid as the end sectionInfo
- Publication number
- CA2136000A1 CA2136000A1 CA002136000A CA2136000A CA2136000A1 CA 2136000 A1 CA2136000 A1 CA 2136000A1 CA 002136000 A CA002136000 A CA 002136000A CA 2136000 A CA2136000 A CA 2136000A CA 2136000 A1 CA2136000 A1 CA 2136000A1
- Authority
- CA
- Canada
- Prior art keywords
- wing
- grid
- winglets
- end section
- span
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C23/00—Influencing air flow over aircraft surfaces, not otherwise provided for
- B64C23/06—Influencing air flow over aircraft surfaces, not otherwise provided for by generating vortices
- B64C23/065—Influencing air flow over aircraft surfaces, not otherwise provided for by generating vortices at the wing tips
- B64C23/069—Influencing air flow over aircraft surfaces, not otherwise provided for by generating vortices at the wing tips using one or more wing tip airfoil devices, e.g. winglets, splines, wing tip fences or raked wingtips
- B64C23/076—Influencing air flow over aircraft surfaces, not otherwise provided for by generating vortices at the wing tips using one or more wing tip airfoil devices, e.g. winglets, splines, wing tip fences or raked wingtips the wing tip airfoil devices comprising one or more separate moveable members thereon affecting the vortices, e.g. flaps
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/10—Drag reduction
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Wind Motors (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Toys (AREA)
- Prostheses (AREA)
Abstract
The wing with the span (b) according to the invention has a main part (1), which has a substantially closed surface with respect to the flow (v) and is provided at its free end with an end section in the form of a wing grid. The wing grid has at least two parallel-staggered winglets (2). Such a wing grid as part of the wing span (b) takes over the intended profile cir-culation at the attachment point to the main part and subdiv-ides said circulation approximately uniformly over the winglets.
Thus, the same lift is produced in the end section with at least two winglets. Thus, for the wing the circulation distri-bution is more complete and the induced resistance is decreased.
An upper or lower limit for the action is obtained, as a function of whether as a result of the fixed wing grid for the entire wing a rectangular circulation distribution is produced or only for the part of the overall span replaced by the wing grid. Thus, for the wing with wing grid there is a correspon-ding reduction of the induced resistance as compared with a conventional wing without a wing grid for the same resulting aspect ratio.
Thus, the same lift is produced in the end section with at least two winglets. Thus, for the wing the circulation distri-bution is more complete and the induced resistance is decreased.
An upper or lower limit for the action is obtained, as a function of whether as a result of the fixed wing grid for the entire wing a rectangular circulation distribution is produced or only for the part of the overall span replaced by the wing grid. Thus, for the wing with wing grid there is a correspon-ding reduction of the induced resistance as compared with a conventional wing without a wing grid for the same resulting aspect ratio.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1032/93-2 | 1993-04-05 | ||
CH1032/93A CH684588A5 (en) | 1993-04-05 | 1993-04-05 | Wing with a wing grating as an end section in order to reduce the glide angle |
CH329393 | 1993-11-02 | ||
CH3293/93-7 | 1993-11-02 | ||
PCT/CH1994/000067 WO1994022713A1 (en) | 1993-04-05 | 1994-03-30 | Wing with a wing grid as the end section |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2136000A1 true CA2136000A1 (en) | 1994-10-13 |
CA2136000C CA2136000C (en) | 2001-10-30 |
Family
ID=25686435
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002136000A Expired - Fee Related CA2136000C (en) | 1993-04-05 | 1994-03-30 | Wing with a wing grid as the end section |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0642440B1 (en) |
AT (1) | ATE149933T1 (en) |
CA (1) | CA2136000C (en) |
DE (1) | DE59402023D1 (en) |
WO (1) | WO1994022713A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8783623B2 (en) | 2008-06-10 | 2014-07-22 | Airbus Operations Gmbh | Device for the generation of aerodynamic vortices and also a regulating flap and wing with a device for the generation of aerodynamic vortices |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE293565T1 (en) | 2000-11-10 | 2005-05-15 | Roche Ulrich La | WINGS WITH WING GRILLS AS END SECTIONS |
DE102009011480A1 (en) | 2009-03-06 | 2010-09-09 | Thomas Dr. Gartner | Flexible high performance sail |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1466551A (en) * | 1921-12-06 | 1923-08-28 | Bristol Aeroplane Co Ltd | Aircraft, submarine, torpedo, and other totally immersed craft or structure |
GB196410A (en) * | 1922-02-01 | 1923-04-26 | William Robert Douglas Shaw | Improvements in wings for aerial machines |
GB846322A (en) * | 1956-08-24 | 1960-08-31 | Commw Of Australia Crown Solic | Lift augmenting means |
FR2349494A1 (en) * | 1976-04-27 | 1977-11-25 | Ducout Marcel | Boat with sails formed of vertical panels - has vertical panels held to mast by horizontal ties and rotatable about longitudinal axes to give curved appearance to sail |
US4671473A (en) * | 1984-11-08 | 1987-06-09 | Goodson Kenneth W | Airfoil |
-
1994
- 1994-03-30 CA CA002136000A patent/CA2136000C/en not_active Expired - Fee Related
- 1994-03-30 EP EP94910313A patent/EP0642440B1/en not_active Expired - Lifetime
- 1994-03-30 DE DE59402023T patent/DE59402023D1/en not_active Expired - Fee Related
- 1994-03-30 WO PCT/CH1994/000067 patent/WO1994022713A1/en active IP Right Grant
- 1994-03-30 AT AT94910313T patent/ATE149933T1/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8783623B2 (en) | 2008-06-10 | 2014-07-22 | Airbus Operations Gmbh | Device for the generation of aerodynamic vortices and also a regulating flap and wing with a device for the generation of aerodynamic vortices |
Also Published As
Publication number | Publication date |
---|---|
ATE149933T1 (en) | 1997-03-15 |
CA2136000C (en) | 2001-10-30 |
DE59402023D1 (en) | 1997-04-17 |
EP0642440B1 (en) | 1997-03-12 |
EP0642440A1 (en) | 1995-03-15 |
WO1994022713A1 (en) | 1994-10-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |