To provide a rotor blade which makes a fluid gather up in an intermediate direction of length of a blade from both directions of a blade root and a blade end of the blade, makes a large amount of the fluid pass through in a rear edge direction, and improves rotation efficiency by its reaction.SOLUTION: Chord length is gradually increased from a blade root 2 in a blade end direction in a front view, and a forward inclining portion 6 which inclines the blade end downward from the maximum chord length portion 4. A flat front surface in a chord direction is inclined close to a rear surface from a front edge 7 to a rear edge 8, and is gradually thickened from a main portion 5 to a base end portion of the blade root 2 to be a thick base portion.SELECTED DRAWING: Figure 1

    【課題】 ブレードの翼根及び翼端の両方向から、ブレードの長さの中間方向へ流体を集合させて、後縁方向へ多量の流体を通過させ、その反作用により回転効率を高めるようにした、ロータブレードを提供する。【解決手段】正面視で翼根2から翼端方向へ次第に弦長を大とし、最大弦長部4を基点として、翼端を前向傾斜とした前向傾斜部6とし、弦方向に平坦な前面を、前縁7から後縁8へかけて後面寄りに傾斜させるとともに、側面視で主部5から翼根2の基端部へかけて次第に厚くして厚基部としてある。【選択図】 図1


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    Title :

    ROTOR BLADE AND HORIZONTAL SHAFT WATER TURBINE EQUIPPED WITH THE SAME


    Additional title:

    ロータブレードとこれを備える横軸水車


    Contributors:

    Publication date :

    2019-03-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F03B MACHINES OR ENGINES FOR LIQUIDS , Kraft- und Arbeitsmaschinen oder Kraftmaschinen für Flüssigkeiten / B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING



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