JP5493217B2 - 風車用ブレード及び風車 - Google Patents
風車用ブレード及び風車 Download PDFInfo
- Publication number
- JP5493217B2 JP5493217B2 JP2013089034A JP2013089034A JP5493217B2 JP 5493217 B2 JP5493217 B2 JP 5493217B2 JP 2013089034 A JP2013089034 A JP 2013089034A JP 2013089034 A JP2013089034 A JP 2013089034A JP 5493217 B2 JP5493217 B2 JP 5493217B2
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- JP
- Japan
- Prior art keywords
- blade
- windmill
- wind
- pitch angle
- angle
- 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.)
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Links
- 230000007423 decrease Effects 0.000 claims description 6
- 238000013461 design Methods 0.000 description 54
- 238000000034 method Methods 0.000 description 25
- 230000002093 peripheral effect Effects 0.000 description 17
- 230000006698 induction Effects 0.000 description 14
- 238000004364 calculation method Methods 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 11
- 230000007613 environmental effect Effects 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 5
- 238000010248 power generation Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000000418 atomic force spectrum Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000007630 basic procedure Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
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- 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
- F03D1/0608—Rotors characterised by their aerodynamic shape
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- 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
- F03D1/0608—Rotors characterised by their aerodynamic shape
- F03D1/0633—Rotors characterised by their aerodynamic shape of the blades
-
- 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
Description
図1は、本実施形態に係る風車用ブレードを備えた風車を風上側から見た第1図である。図1に示す風車10は、4枚のブレード20、ボス部30及び回転軸40を有し、直径が約50cmの小型風車である。なお、騒音発生を抑制するために、周速比は低めの4とする。
以下、図1及び図2に示したブレード20、21の構造を採用した根拠について説明する。なお、以下の説明においては必要に応じて従来技術も併せて説明する。
20、21 ブレード
25、27 横側縁部
26、28 絞り部
40 回転軸
50 翼根部
60 翼端部
Claims (2)
- 風車に用いられるブレードであって、翼根部と翼端部との間で弦長が極小値となる絞り部を形成し、前記絞り部は、当該風車用ブレードの回転中心から前記翼端部までの略75%の位置に形成され、前記翼根部から前記絞り部までは、漸次ピッチ角が小さくなるように、且つ、当該翼根部から当該絞り部に向かって弦長が短くなる先細のテーパー状に形成し、前記絞り部から前記翼端部までは、全半径位置において固有のピッチ角及びソリディティの平坦状、且つ、当該絞り部から当該翼端部に向かって弦長が長くなる先太の逆テーパー状に形成することを特徴とする風車用ブレード。
- 請求項1に記載の風車用ブレードを備えることを特徴とする風車。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013089034A JP5493217B2 (ja) | 2012-04-23 | 2013-04-22 | 風車用ブレード及び風車 |
PCT/JP2013/061761 WO2013161752A1 (ja) | 2012-04-23 | 2013-04-22 | 風車用ブレード及び風車 |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012097873 | 2012-04-23 | ||
JP2012097873 | 2012-04-23 | ||
JP2013089034A JP5493217B2 (ja) | 2012-04-23 | 2013-04-22 | 風車用ブレード及び風車 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2013241930A JP2013241930A (ja) | 2013-12-05 |
JP5493217B2 true JP5493217B2 (ja) | 2014-05-14 |
Family
ID=49483065
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2013089034A Active JP5493217B2 (ja) | 2012-04-23 | 2013-04-22 | 風車用ブレード及び風車 |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP5493217B2 (ja) |
WO (1) | WO2013161752A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015161269A (ja) * | 2014-02-28 | 2015-09-07 | 国立研究開発法人宇宙航空研究開発機構 | 流体制御システム |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3875618B2 (ja) * | 2002-10-15 | 2007-01-31 | 常夫 野口 | 水平軸型風力発電機用風車 |
WO2007147177A2 (en) * | 2006-06-12 | 2007-12-21 | Martin Steyn | A blade |
EP2017466A1 (en) * | 2007-07-20 | 2009-01-21 | Siemens Aktiengesellschaft | Wind turbine rotor blade and turbine rotor |
-
2013
- 2013-04-22 WO PCT/JP2013/061761 patent/WO2013161752A1/ja active Application Filing
- 2013-04-22 JP JP2013089034A patent/JP5493217B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
WO2013161752A1 (ja) | 2013-10-31 |
JP2013241930A (ja) | 2013-12-05 |
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