JP6103911B2 - 騒音を低減するための先端形状を含むエーロフォイルおよびそのエーロフォイルを作製するための方法 - Google Patents
騒音を低減するための先端形状を含むエーロフォイルおよびそのエーロフォイルを作製するための方法 Download PDFInfo
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- 238000000034 method Methods 0.000 title description 8
- 230000003993 interaction Effects 0.000 claims description 6
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- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
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- 238000004519 manufacturing process Methods 0.000 description 3
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- 238000009826 distribution Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
- B64C11/16—Blades
- B64C11/18—Aerodynamic features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
- B64C11/46—Arrangements of, or constructional features peculiar to, multiple propellers
- B64C11/48—Units of two or more coaxial propellers
-
- 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
- F01D5/141—Shape, i.e. outer, aerodynamic form
-
- 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
- F01D5/141—Shape, i.e. outer, aerodynamic form
- F01D5/145—Means for influencing boundary layers or secondary circulations
-
- 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
- F01D5/20—Specially-shaped blade tips to seal space between tips and stator
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D19/00—Axial-flow pumps
- F04D19/02—Multi-stage pumps
- F04D19/024—Multi-stage pumps with contrarotating parts
-
- 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
- F04D29/08—Sealings
- F04D29/16—Sealings between pressure and suction sides
- F04D29/161—Sealings between pressure and suction sides especially adapted for elastic fluid pumps
- F04D29/164—Sealings between pressure and suction sides especially adapted for elastic fluid pumps of an axial flow wheel
-
- 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
- F04D29/321—Rotors specially for elastic fluids for axial flow pumps for axial flow compressors
- F04D29/324—Blades
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
- F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D27/00—Arrangement or mounting of power plants in aircraft; Aircraft characterised by the type or position of power plants
- B64D2027/005—Aircraft with an unducted turbofan comprising contra-rotating rotors, e.g. contra-rotating open rotors [CROR]
-
- 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
- F01D1/00—Non-positive-displacement machines or engines, e.g. steam turbines
- F01D1/24—Non-positive-displacement machines or engines, e.g. steam turbines characterised by counter-rotating rotors subjected to same working fluid stream without intermediate stator blades or the like
- F01D1/26—Non-positive-displacement machines or engines, e.g. steam turbines characterised by counter-rotating rotors subjected to same working fluid stream without intermediate stator blades or the like traversed by the working-fluid substantially axially
-
- 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
- F05D2220/00—Application
- F05D2220/30—Application in turbines
- F05D2220/36—Application in turbines specially adapted for the fan of turbofan engines
-
- 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
- F05D2240/307—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor related to the tip of a rotor blade
-
- 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
- F05D2250/00—Geometry
- F05D2250/70—Shape
- F05D2250/71—Shape curved
- F05D2250/712—Shape curved concave
-
- 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
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49316—Impeller making
- Y10T29/49336—Blade making
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Aviation & Aerospace Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Wind Motors (AREA)
Description
12 エンジン組立体
14 翼
16 翼
18 長手方向中心線軸
20 上流方向
22 下流方向
24 外殻/外筒
26 コアエンジン
28 圧縮機
30 燃焼器
32 高圧タービン
34 34A/34B駆動軸
36 ディフューザ区域
38 出力タービン
40 一次タービンブレード列
42 二次タービンブレード列
44 前部ファン区域
46 一次ファンブレード列
48 内側逆回転軸
50 二次ファンブレード列
52 外側駆動軸
54 エーロフォイル
56 パイロン
60 従来技術のファンブレード
62 エーロフォイル部分
64 先端部分
66 翼根部
68 傾斜線
70 ファンブレード
72 エーロフォイル部分
74 プラットフォーム
76 翼根部
78 一体型ダブテール
80 一次曲面側壁
81 正圧面
82 二次曲面側壁
83 負圧面
84 前縁
86 後縁
88 先端部分
90 キャンバーおよび厚さ変化開始線
92 翼弦距離
94 翼弦長
96 翼弦区域
98 先端切り口
100 先端切り口形状
102 一次部分
104 一次斜面
106 二次部分
108 二次斜面
Claims (6)
- 一次ファンブレード列(46)および前記一次ファンブレード列(46)から軸方向後方に離隔された二次ファンブレード列(50)を含むアンダクテッドファン区域(44)を備えるアンダクテッド逆回転ファンエンジンであって、前記二次ファンブレード列(50)が複数のエーロフォイル(72)を含み、
各エーロフォイルが、
翼根部(76)および該翼根部(76)から半径方向外側に延在するように構成される、前縁先端を形成する先端部分(88)と、
前縁(84)、および前記前縁(84)から翼弦方向下流に離隔された後縁(86)で一体に結合される負圧面(83)および正圧面(81)と、
翼弦長(94)を有し、翼弦方向に前記エーロフォイル(72)の前記前縁(84)と前記後縁(86)との間に延在し、翼幅方向に前記翼根部(76)と前記先端部分(88)との間の前記エーロフォイル(72)の長さに沿って離隔された複数の翼弦区域(96)と、
先端形状(100)と
を備え、
前記先端形状(100)は、
前記前縁先端から前記後縁に向けて且つ少なくとも前記翼弦長(94)の部分に沿って延在する一次下降斜面(104)を有する一次部分(102)と、
前記一次部分(102)から前記後縁(86)に向かって前記翼弦長(94)の少なくとも部分に沿って延在する二次下降斜面(108)を有する少なくとも1つの追加部分(106)と
を画定し、
前記一次下降斜面(104)が前記二次下降斜面(108)よりも大きく、
前記先端形状(100)が、前記エーロフォイル(72)の前記先端部分(88)近傍の非常に不安定な圧力を低減するように構成される、アンダクテッド逆回転ファンエンジン。 - 一次下降斜面(104)を有する前記一次部分(102)が前記前縁(84)から前記先端部分(88)で、翼弦方向に前記エーロフォイル(62)の前記翼弦長(94)の少なくとも25%延在する、請求項1記載のアンダクテッド逆回転ファンエンジン。
- 一次下降斜面(104)を有する前記一次部分(102)が前記前縁(84)から前記先端部分(88)で、翼弦方向に前記エーロフォイル(62)の翼弦長(94)の25%未満延在する、請求項1記載のアンダクテッド逆回転ファンエンジン。
- 前記エーロフォイル(62)が、ダクテッドファンブレードまたはアンダクテッドファンブレード、ロータブレード、風力タービンブレード、あるいは航空機空気力学的表面の1つである、請求項1乃至3のいずれか1項に記載のアンダクテッド逆回転ファンエンジン。
- ディスク(44)と、
前記ディスク(44)に結合された複数のアンダクテッドファンブレード(46,50)と
を備えるファン組立体であって、
前記複数のアンダクテッドファンブレード(46,50)のそれぞれが、
翼根部(76)、前縁先端を形成する先端部分(88)、ならびに前縁(84)で、および前記前縁(84)から翼弦方向下流に離隔された後縁(86)で一体に結合される負圧面(83)および正圧面(81)を備えるエーロフォイル(72)と、
翼弦長(94)を有し、翼弦方向に前記エーロフォイル(72)の前記前縁(84)と前記後縁(86)との間に延在し、翼幅方向に前記翼根部(76)と前記先端部分(88)との間の前記エーロフォイル(72)の長さに沿って離隔された複数の翼弦区域(96)と、
先端形状(100)と
を備え、
前記先端形状(100)は、
前記前縁先端から前記後縁に向けて且つ少なくとも前記翼弦長(94)の部分に沿って延在する一次下降斜面(104)を有する一次部分(102)と、
前記一次部分(102)から前記後縁(86)に向かって前記翼弦長(94)の少なくとも部分に沿って延在する二次下降斜面(108)を有する少なくとも1つの追加部分(106)と
を画定し、
前記一次下降斜面(104)が前記二次下降斜面(108)よりも大きく、
前記先端形状(100)が、前記エーロフォイル(72)の前記先端部分(99)近傍の非常に不安定な圧力を低減するように構成される、ファン組立体。 - 前記エーロフォイル(72)が、突風/先端渦相互作用に関連する騒音を低減するよう促進するように構成される、請求項5記載のファン組立体。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US13/330,766 | 2011-12-20 | ||
US13/330,766 US9102397B2 (en) | 2011-12-20 | 2011-12-20 | Airfoils including tip profile for noise reduction and method for fabricating same |
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JP2013137020A JP2013137020A (ja) | 2013-07-11 |
JP2013137020A5 JP2013137020A5 (ja) | 2016-01-28 |
JP6103911B2 true JP6103911B2 (ja) | 2017-03-29 |
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JP2012269896A Expired - Fee Related JP6103911B2 (ja) | 2011-12-20 | 2012-12-11 | 騒音を低減するための先端形状を含むエーロフォイルおよびそのエーロフォイルを作製するための方法 |
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US (1) | US9102397B2 (ja) |
EP (1) | EP2607231A3 (ja) |
JP (1) | JP6103911B2 (ja) |
CN (1) | CN103174465B (ja) |
BR (1) | BR102012032435A2 (ja) |
CA (1) | CA2798211A1 (ja) |
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FR2973333B1 (fr) * | 2011-03-29 | 2014-08-01 | Snecma | Systeme pour changer le pas d'helices contrarotatives d'un turbomoteur |
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-
2011
- 2011-12-20 US US13/330,766 patent/US9102397B2/en active Active
-
2012
- 2012-12-06 CA CA2798211A patent/CA2798211A1/en not_active Abandoned
- 2012-12-10 EP EP12196386.2A patent/EP2607231A3/en not_active Withdrawn
- 2012-12-11 JP JP2012269896A patent/JP6103911B2/ja not_active Expired - Fee Related
- 2012-12-19 BR BR102012032435A patent/BR102012032435A2/pt not_active IP Right Cessation
- 2012-12-20 CN CN201210557571.6A patent/CN103174465B/zh active Active
Also Published As
Publication number | Publication date |
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US20130156583A1 (en) | 2013-06-20 |
EP2607231A2 (en) | 2013-06-26 |
BR102012032435A2 (pt) | 2015-10-20 |
CN103174465A (zh) | 2013-06-26 |
EP2607231A3 (en) | 2017-04-12 |
JP2013137020A (ja) | 2013-07-11 |
CN103174465B (zh) | 2017-04-26 |
US9102397B2 (en) | 2015-08-11 |
CA2798211A1 (en) | 2013-06-20 |
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