GB2062120A - Structural unit for flow- technical apparatuses or machines - Google Patents
Structural unit for flow- technical apparatuses or machines Download PDFInfo
- Publication number
- GB2062120A GB2062120A GB8034111A GB8034111A GB2062120A GB 2062120 A GB2062120 A GB 2062120A GB 8034111 A GB8034111 A GB 8034111A GB 8034111 A GB8034111 A GB 8034111A GB 2062120 A GB2062120 A GB 2062120A
- Authority
- GB
- United Kingdom
- Prior art keywords
- structural unit
- elementary structures
- elementary
- flow
- structures
- 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.)
- Withdrawn
Links
- 229920002994 synthetic fiber Polymers 0.000 claims abstract description 6
- 238000003466 welding Methods 0.000 claims abstract description 3
- 238000004026 adhesive bonding Methods 0.000 claims description 2
- 230000000295 complement effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011265 semifinished product Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005058 metal casting Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
- F03D1/0675—Rotors characterised by their construction elements of the blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C3/00—Wings
- B64C3/26—Construction, shape, or attachment of separate skins, e.g. panels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/14—Form or construction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/388—Blades characterised by construction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/541—Specially adapted for elastic fluid pumps
- F04D29/542—Bladed diffusers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2240/00—Components
- F05D2240/20—Rotors
- F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- 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
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Aviation & Aerospace Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Standing Axle, Rod, Or Tube Structures Coupled By Welding, Adhesion, Or Deposition (AREA)
Abstract
The structural unit (1) according to the invention is made up from juxtaposed and interconnected elementary structures (2) having at least one surface (4) which from a flow-technical point of view is identical with a part of the final surface (3) of the structural unit (1). The elementary structures may be secured to each other by riveting, adhesives or welding and included internal reinforcing elements, stressed-skin construction, or a foamed synthetic material interior. <IMAGE>
Description
SPECIFICATION
Structural unit for flow-technical apparatuses
or machines
The invention relates to a structural unit for flow-technical apparatuses and machines, having specific shape or profile from an aerodynamic or
rheological point of view. Such structural unit may
be, for instance, a fan or blower blade or wing. The possibility for application of the invention
generally arises in the field of air flow machinery, e.g. pumps, turbines, fans, various flow-guiding
devices, ventilating apparatus, aviation engineering and others.
It is known that the structural units of fixed
cross-section and shape, as for instance the various fan wings or turbine blades are difficult to
produce in large sizes. If the wing of a blower or fan used in cooling towers is taken as an example,
evidently its production assuring the optimal
shape of the wing from an aerodynamic point of view will be extremely difficult. In the case of
smaller machines such structural units are
machined from solid material, or a rough piece will
be produced, for instance, by metal casting. In
case of larger structural units a lattice frame is first
made and is then provided with a surface coveriny
sheet or plate.
This latter method is used particularly in the
production of the wings of aeroplanes.
No matter which production method is taken as
example, the correct shape can be attained only
with complicated technology, low productivity
high labour input, and consequently at high cost.
The invention is aimed at simplification,
standardisation and application of the size series
principle, in the production of structural units in flow-technical apparatuses or machines having
specific shapes from a rheological point of view.
The aim of the invention is sought to be
attained by the structural unit being itself built up
from elementary structures (elements) provided
with predetermined external surfaces, which in
their juxtaposition form the final surface of the
structural unit. Applying suitable "family" (size
series) principles, structural units of varying shape
and size can be assembled from a stock of sets of
elementaty structures.
A connection of the elementary structures to
each other can be realised either with releasable jointing elements, or with non-releasable
(permanent) jointing elements. Generally, jointing
by adhesive bonding or welding is preferred. Also
riveting may be considered, or fixing with inter
connecting pieces, such as grooves and matching
counterpieces, engaging pins, or engaging strips.
The material of the elementary structures may
be metal, synthetic materials e.g. semi-finished products of metal and synthetic materials of varying cross-section; wood; foamed plastics.
The elementary structures may be simple stressed-skin structures, or may be provided with
internal reinforcement; elementary structures filled in, for instance, with foamed synthetic
material may also be used. The elementary
structures may be formed from extruded, drawn or
pressed semi-finished products, e.g. by cutting.
Thus, a structural unit according to the
invention comprises interconnected elementary
structures each of which has at least one surface
which from a flow-technical point of view is
identical with a part of the final surface of the
structural unit.
Each elementary structure according to the
invention may be regarded as a part derived from
cutting up the final structural unit. Accordingly, in the majority of cases each elementary structure
has two surfaces which will form part of the final
surface of the structural unit to be assembled.
Naturally, the surface of the prefabricated
elementary structure will not be suitable in every
case for the intended structural unit and the final surface will have to be provided with some kind of cover, e.g. by coating, painting, lacquering, etc.
From the flow-technical point of view however, at
least one surface of the prefabricated elementary structures shall form part of the surface of the final structural unit.
The structural unit according to the invention is described, purely by way of example, with reference to the accompanying diagrammatic drawing, Illustrating a structural unit in the form of a fan wing, and wherein:
Figure 1 illustrates the profile of the wing,
Figure 2 illustrates the ventilator wing divided
into elementary structures,
Figure 3 is an embodiment of an elementary structure of the structural unit, shown in crosssection,
Figure 4 is a cross-section of another embodiment of an elementary structure, and
Figure 5 is a section of a further embodiment of the elementary structure.
The fan or ventilator wing 1 has an external contour defined by surface 3. The surface 3 determines the profile essential from an aerodynamic or flow-technical point of view. The ventilator wing 1 in Figure 2 is divided into five elementary structures 2. The elementary structures 2 may be prefabricated individually and when suitably interconnected will give the aerofoil or wing shape shown in Figure 1. At least one surface 4 of each elementary structure shall form part of the aerodynamically decisive or important whole surface of the wing 1 as the structural unit.
The elementary structures 2 may be formed from shell or stressed-skin structures, as shown in
Figure 3. For jointing of the stressed-skin structures flanges 5 are used, along which the adjacent elementary structures 2 can be bonded or welded together, or possibly fastened by rivets. Surfaces 4 of the elementary structures 2 jointly determine the aerodynamically important surface of the wing 1, although the surfaces 4 - following the jointing of the elementary structures 2 - will be provided with some kind of covering layer.
Figure 4 shows an elementary structure in which reinforcing elements in the form of curved internal ribs and straight ribs 6 are used. These elementary structures 2 are also fitted together by way of flanges 5, along which the jointing of the elementary structures may be assured.
Figure 5 illustrates an elementary structure 2 the interior of which is of foamed synthetic material 7. In connection with this embodiment a method of fastening the elementary structures is different: a groove 8 is formed on one of the elementary structures, while the adjacent elementary structure is provided with a counterpiece (not shown) complementary in shape to that of the groove 8. Said counterpiece may consist of one or several projections.
Forming families or dimensionally related sets of elementary structures 2 is readily achievable with this invention, for the purpose of allowing the assembly of structural units of varying size and shape from the different elementary structures 2.
In this way, a large number of structural units can be produced, differing from each other both in respect of profile (shape) and size. By a suitable application of the mentioned family principle even embodiments twisted along one of the axes of the structural unit may be produced.
Claims (7)
1. Aerodynamic structural unit for flow
machinery having a predetermined shape or
profile e.g. a ventilator wing, said unit being made up of juxtaposed and interconnected elementary structures, at least one surface of each of which is flow-technically (aerodynamically) identical or coincident with a part of the final surface of the structural unit.
2. A structural unit as claimed in claim 1, wherein at least some of said elementary structures are provided with internal reinforcement.
3. A structural unit as claimed in claim 1 or 2, wherein the interior of said elementary structures is filled with a space-filling material, e.g. foamed synthetic material.
4. A structural unit as claimed in any preceding claim, wherein the elementary structures are fastened to each other by adhesive bonding or welding.
5. A structural unit as claimed in any preceding claim, wherein the elementary structures are provided with interengageable, complementary recess(es) and projection(s).
6. A structural unit according to claim 1, substantially as herein described with reference to
Figures 1 and 2, in combination with Figure 3 or
Figure 4 or Figure 5 of the accompanying drawing.
7. Sets of elementary structures of varying shapes and sizes interconnectable to form aerodynamic structural units according to any preceding claim.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HU79SE1961A HU178353B (en) | 1979-10-25 | 1979-10-25 | Wing or blade composed from parts for fans or fanlike machines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB2062120A true GB2062120A (en) | 1981-05-20 |
Family
ID=11001489
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8034111A Withdrawn GB2062120A (en) | 1979-10-25 | 1980-10-22 | Structural unit for flow- technical apparatuses or machines |
Country Status (8)
Country | Link |
---|---|
BE (1) | BE885857A (en) |
DE (1) | DE3040170A1 (en) |
FR (1) | FR2468067A1 (en) |
GB (1) | GB2062120A (en) |
HU (1) | HU178353B (en) |
LU (1) | LU82849A1 (en) |
NL (1) | NL8005761A (en) |
SE (1) | SE8007449L (en) |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0061567A2 (en) * | 1981-04-01 | 1982-10-06 | Messerschmitt-Bölkow-Blohm Gesellschaft mit beschränkter Haftung | Aerodynamic propeller blade and manufacturing process |
FR2527681A1 (en) * | 1982-06-01 | 1983-12-02 | Plastluefter & Anlagenbau Veb | BLADE FOR MOBILE WHEELS OF ROTARY-OPERATING MACHINE |
EP0095807A2 (en) * | 1982-05-27 | 1983-12-07 | Multinorm B.V. | Windmill, rotor, rotor blade and mast for the same and method of manufacturing said rotor blade |
FR2542645A1 (en) * | 1983-03-15 | 1984-09-21 | Cabrol Lucien | Method for producing a support structure for an aircraft, and the structure obtained |
EP0591194A4 (en) * | 1990-07-27 | 1993-05-11 | Marley Cooling Tower Co | Fan blade having abrasion resistant leading edge. |
FR2782306A1 (en) * | 1998-08-13 | 2000-02-18 | Deutsch Zentr Luft & Raumfahrt | AERODYNAMIC COMPLEX WITH SUPPORTING SURFACE AND METHOD FOR THE PRODUCTION THEREOF |
US6328261B1 (en) * | 1997-06-20 | 2001-12-11 | Bae Systems Plc | Friction welding metal components |
WO2004111392A1 (en) * | 2003-06-18 | 2004-12-23 | Siemens Aktiengesellschaft | Blade and gas turbine |
WO2008009270A2 (en) * | 2006-07-20 | 2008-01-24 | Mtu Aero Engines Gmbh | Method for repairing a guide blade segment for a jet engine |
WO2008071195A3 (en) * | 2006-12-15 | 2008-11-20 | Univ Denmark Tech Dtu | Reinforced aerodynamic profile |
WO2009101226A1 (en) * | 2008-02-11 | 2009-08-20 | Isidro Bocanegra Marquina | Extruded modular blade |
GB2463250A (en) * | 2008-09-04 | 2010-03-10 | Vestas Wind Sys As | A wind turbine blade formed from welded thermoplastic sections |
WO2011126568A1 (en) * | 2010-04-05 | 2011-10-13 | Moore Fans Llc | Commercial air cooled apparatuses incorporating axial flow fans comprising super low noise fan blades |
WO2012001147A1 (en) * | 2010-07-01 | 2012-01-05 | Lm Glasfiber A/S | Wind turbine blade for a rotor of a wind turbine |
WO2013083481A1 (en) * | 2011-12-08 | 2013-06-13 | Wobben Properties Gmbh | Rear casing, rotor blade with rear casing, and a wind turbine that comprises such a rotor blade |
US8485786B2 (en) | 2007-01-16 | 2013-07-16 | Bladena Aps | Reinforced blade for wind turbine |
US8632312B2 (en) | 2007-01-25 | 2014-01-21 | Bladena Aps | Reinforced blade for wind turbine |
US8807953B2 (en) | 2008-06-24 | 2014-08-19 | Bladena Aps | Reinforced wind turbine blade |
EP2801437A3 (en) * | 2013-05-08 | 2014-12-17 | AB Akron-Maskiner | Blades for axial flow machines and a method to manufacture such blades |
US9416768B2 (en) | 2009-12-02 | 2016-08-16 | Bladena Aps | Reinforced airfoil shaped body |
EP2637923B1 (en) * | 2010-11-12 | 2019-01-02 | Airbus Operations GmbH | Structural element for an aircraft and/or spacecraft and method for producing such a structural element |
CN110966047A (en) * | 2018-09-28 | 2020-04-07 | 通用电气公司 | Airfoil with leading edge guard |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4315600C2 (en) * | 1993-05-11 | 1996-07-25 | Daimler Benz Aerospace Airbus | Support structure for an aerodynamic surface |
DE4437102A1 (en) * | 1994-10-18 | 1996-04-25 | Andreas Blakkolb | Model helicopter with rotor and production tool |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH448130A (en) * | 1966-05-16 | 1967-12-15 | Escher Wyss Ag | Blade for steam or gas turbine |
DE1628278A1 (en) * | 1966-06-16 | 1971-03-18 | Helios Appbau Kg Mueller & Co | Process for the production of fan blades |
GB1141270A (en) * | 1966-12-30 | 1969-01-29 | Edgar Allen Aerex Ltd | Improvements in or relating to air-moving fans, e.g. for cooling towers |
GB1218021A (en) * | 1967-05-11 | 1971-01-06 | Rolls Royce | Improvements in flow directing blades |
DD100058A1 (en) * | 1972-10-12 | 1980-10-01 | Shovels for axial fans and method of making these blades | |
US3938962A (en) * | 1974-04-04 | 1976-02-17 | Weston H. Feilbach | Laminated composite wear materials |
-
1979
- 1979-10-25 HU HU79SE1961A patent/HU178353B/en not_active IP Right Cessation
-
1980
- 1980-10-14 LU LU82849A patent/LU82849A1/en unknown
- 1980-10-20 NL NL8005761A patent/NL8005761A/en not_active Application Discontinuation
- 1980-10-22 GB GB8034111A patent/GB2062120A/en not_active Withdrawn
- 1980-10-23 BE BE0/202583A patent/BE885857A/en unknown
- 1980-10-23 SE SE8007449A patent/SE8007449L/en not_active Application Discontinuation
- 1980-10-24 DE DE19803040170 patent/DE3040170A1/en not_active Ceased
- 1980-10-24 FR FR8022886A patent/FR2468067A1/en active Pending
Cited By (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0061567A2 (en) * | 1981-04-01 | 1982-10-06 | Messerschmitt-Bölkow-Blohm Gesellschaft mit beschränkter Haftung | Aerodynamic propeller blade and manufacturing process |
EP0061567A3 (en) * | 1981-04-01 | 1984-09-26 | Messerschmitt-Bolkow-Blohm Gesellschaft Mit Beschrankter Haftung | Aerodynamic propeller blade and manufacturing process |
EP0095807A2 (en) * | 1982-05-27 | 1983-12-07 | Multinorm B.V. | Windmill, rotor, rotor blade and mast for the same and method of manufacturing said rotor blade |
EP0095807A3 (en) * | 1982-05-27 | 1985-08-14 | Multinorm B.V. | Windmill, rotor, rotor blade and mast for the same and method of manufacturing said rotor blade |
FR2527681A1 (en) * | 1982-06-01 | 1983-12-02 | Plastluefter & Anlagenbau Veb | BLADE FOR MOBILE WHEELS OF ROTARY-OPERATING MACHINE |
FR2542645A1 (en) * | 1983-03-15 | 1984-09-21 | Cabrol Lucien | Method for producing a support structure for an aircraft, and the structure obtained |
EP0591194A4 (en) * | 1990-07-27 | 1993-05-11 | Marley Cooling Tower Co | Fan blade having abrasion resistant leading edge. |
EP0591194A1 (en) * | 1990-07-27 | 1994-04-13 | The Marley Cooling Tower Company | Fan blade having abrasion resistant leading edge |
US6328261B1 (en) * | 1997-06-20 | 2001-12-11 | Bae Systems Plc | Friction welding metal components |
FR2782306A1 (en) * | 1998-08-13 | 2000-02-18 | Deutsch Zentr Luft & Raumfahrt | AERODYNAMIC COMPLEX WITH SUPPORTING SURFACE AND METHOD FOR THE PRODUCTION THEREOF |
WO2004111392A1 (en) * | 2003-06-18 | 2004-12-23 | Siemens Aktiengesellschaft | Blade and gas turbine |
WO2008009270A3 (en) * | 2006-07-20 | 2008-03-06 | Mtu Aero Engines Gmbh | Method for repairing a guide blade segment for a jet engine |
WO2008009270A2 (en) * | 2006-07-20 | 2008-01-24 | Mtu Aero Engines Gmbh | Method for repairing a guide blade segment for a jet engine |
WO2008071195A3 (en) * | 2006-12-15 | 2008-11-20 | Univ Denmark Tech Dtu | Reinforced aerodynamic profile |
CN101646865B (en) * | 2006-12-15 | 2013-01-09 | 布拉德纳公司 | Reinforced aerodynamic profile |
US8454318B2 (en) | 2006-12-15 | 2013-06-04 | Bladena Aps | Reinforced aerodynamic profile |
US8485786B2 (en) | 2007-01-16 | 2013-07-16 | Bladena Aps | Reinforced blade for wind turbine |
US8632312B2 (en) | 2007-01-25 | 2014-01-21 | Bladena Aps | Reinforced blade for wind turbine |
WO2009101226A1 (en) * | 2008-02-11 | 2009-08-20 | Isidro Bocanegra Marquina | Extruded modular blade |
ES2332973A1 (en) * | 2008-02-11 | 2010-02-15 | Isidro Bocanegra Marquina | Extruded modular blade |
US9784240B2 (en) | 2008-06-24 | 2017-10-10 | Bladena Solutions Aps | Reinforced wind turbine blade |
US8807953B2 (en) | 2008-06-24 | 2014-08-19 | Bladena Aps | Reinforced wind turbine blade |
GB2463250A (en) * | 2008-09-04 | 2010-03-10 | Vestas Wind Sys As | A wind turbine blade formed from welded thermoplastic sections |
US9416768B2 (en) | 2009-12-02 | 2016-08-16 | Bladena Aps | Reinforced airfoil shaped body |
CN102947595A (en) * | 2010-04-05 | 2013-02-27 | 穆尔风扇有限责任公司 | Commercial air cooled apparatuses incorporating axial flow fans comprising super low noise fan blades |
AU2011238913B2 (en) * | 2010-04-05 | 2015-08-13 | Moore Fans Llc | Commercial air cooled apparatuses incorporating axial flow fans comprising Super Low Noise fan blades |
JP2013524091A (en) * | 2010-04-05 | 2013-06-17 | ムーア ファンズ リミティド ライアビリティ カンパニー | Commercial air cooling device with axial fan with ultra-low noise fan blades |
WO2011126568A1 (en) * | 2010-04-05 | 2011-10-13 | Moore Fans Llc | Commercial air cooled apparatuses incorporating axial flow fans comprising super low noise fan blades |
US8851851B2 (en) | 2010-04-05 | 2014-10-07 | Moore Fans Llc | Super low noise fan blades, axial flow fans incorporating the same, and commercial air cooled apparatuses incorporating such axial flow fans |
CN102947595B (en) * | 2010-04-05 | 2016-10-12 | 穆尔风扇有限责任公司 | Commercial air chiller including the aerofoil fan comprising super low noise fan blade |
US10107258B2 (en) | 2010-07-01 | 2018-10-23 | Lm Glasfiber A/S | Wind turbine blade for a rotor of a wind turbine |
WO2012001147A1 (en) * | 2010-07-01 | 2012-01-05 | Lm Glasfiber A/S | Wind turbine blade for a rotor of a wind turbine |
EP2637923B1 (en) * | 2010-11-12 | 2019-01-02 | Airbus Operations GmbH | Structural element for an aircraft and/or spacecraft and method for producing such a structural element |
AU2012348662B2 (en) * | 2011-12-08 | 2016-05-19 | Wobben Properties Gmbh | Rear casing, rotor blade with rear casing, and a wind turbine that comprises such a rotor blade |
KR101678752B1 (en) | 2011-12-08 | 2016-11-23 | 보벤 프로퍼티즈 게엠베하 | Rear casing, rotor blade with rear casing, and a wind turbine that comprises such a rotor blade |
KR20140105533A (en) * | 2011-12-08 | 2014-09-01 | 보벤 프로퍼티즈 게엠베하 | Rear casing, rotor blade with rear casing, and a wind turbine that comprises such a rotor blade |
US9897070B2 (en) | 2011-12-08 | 2018-02-20 | Wobben Properties Gmbh | Rear casing, rotor blade with rear casing, and a wind turbine that comprises such a rotor blade |
WO2013083481A1 (en) * | 2011-12-08 | 2013-06-13 | Wobben Properties Gmbh | Rear casing, rotor blade with rear casing, and a wind turbine that comprises such a rotor blade |
EP2801437A3 (en) * | 2013-05-08 | 2014-12-17 | AB Akron-Maskiner | Blades for axial flow machines and a method to manufacture such blades |
CN110966047A (en) * | 2018-09-28 | 2020-04-07 | 通用电气公司 | Airfoil with leading edge guard |
US11454121B2 (en) | 2018-09-28 | 2022-09-27 | General Electric Company | Airfoil with leading edge guard |
Also Published As
Publication number | Publication date |
---|---|
SE8007449L (en) | 1981-04-26 |
BE885857A (en) | 1981-02-16 |
HU178353B (en) | 1982-04-28 |
NL8005761A (en) | 1981-04-28 |
LU82849A1 (en) | 1981-02-02 |
FR2468067A1 (en) | 1981-04-30 |
DE3040170A1 (en) | 1981-05-07 |
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