VERTICAL SHAFT TYPE WIND TURBINE

• Main Authors: MAEDA YASUNORI, FUJITOMI MASAHIRO
• Format: Patent
• Language: English; Japanese
• Published: 16.04.2015
• Subjects: BLASTING; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; LIGHTING; MACHINES OR ENGINES FOR LIQUIDS; MECHANICAL ENGINEERING; OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR; PRODUCING MECHANICAL POWER; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS; WIND MOTORS; WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS

PROBLEM TO BE SOLVED: To provide a vertical shaft type wind turbine different from a usual type in view of its constitution that it can be easily started to drive even with gentle wind without reducing its efficiency in wind power generation.SOLUTION: A left side flow guide 3 and a right side flow guide 4 arranged near blade rotation tracks are installed at the left side and the right side in respect to an air flow center line of a rotating rotor 2. The left side flow guide 3 is formed in a column-like shape in parallel with a wind turbine rotation shaft 2a, a circumferential line shape in its section shows an inverse S-shape in which it has an arcuate shape at its inner side and its outer side being smoothly connected with the circumferential line of the inner side arcuate shape at windward and being connected at an acute angle with the inner side arcuate circumferential line at leeward side. The right side flow guide 4 is formed into a column-like shape in parallel with the wind turbine rotation shaft 2a. The circumferential line shape in its section shows an inverse S-shape in which it has an arcuate shape at its inner side and its outer side being smoothly connected with the circumferential line of the inner side arcuate shape at leeward and being connected at an acute angle with the inner side arcuate circumferential line at windward side. 【課題】効率を低下させることなく微風でもより起動しやすくした従来と異なる垂直軸型風車の提供。【解決手段】回転ロータ２の気流中心線に対する左側及び右側にブレードの回転軌道に近接して配設された左側フローガイド３、右側フローガイド４を備える。左側フローガイド３は、風車回転軸２ａに平行な柱状に形成し、断面の周線形状は、内側が円弧状、外側が風上側において内側の円弧状の周線と滑らかに接続し風下側において内側の円弧状の周線と鋭角を為して接続する逆Ｓ字状に形成する。右側フローガイド４は、風車回転軸２ａに平行な柱状に形成し、断面の周線形状は、内側が円弧状、外側が風下側において内側の円弧状の周線と滑らかに接続し風上側において内側の円弧状の周線と鋭角を為して接続する逆Ｓ字状に形成する。【選択図】図１