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    • 2. 发明授权
    • Francis pump-turbine
    • 弗朗西斯泵轮机
    • US07682134B2
    • 2010-03-23
    • US11545760
    • 2006-10-11
    • Kazuyuki NakamuraKotaro TezukaToshifumi Kurokawa
    • Kazuyuki NakamuraKotaro TezukaToshifumi Kurokawa
    • B63H1/16
    • F03B3/125Y02E10/223
    • A Francis pump-turbine includes a runner provided with runner blades arranged around in a circumferential direction of a main shaft of the runner, each of the runner blades being supported by a band at a bottom side thereof in a blade height direction and supported by a crown at a head side in the blade height direction, in which the runner blade is formed, at a trailing edge thereof, with a curved portion expanding to the main shaft when the turbine is in operation, the curved portion has a maximum point with respect to a straight line connecting a crown-side trailing edge connecting end at which the trailing edge and the crown are connected and a band-side trailing edge connecting end at which the trailing edge and the band are connected, and an angle α formed by a straight line connecting the maximum point and the crown-side trailing edge connecting end and a straight line connecting the maximum point and the band-side trailing edge connecting end is set to be within a range of α≦150°.
    • 弗朗西斯泵浦涡轮机包括设置有沿着流道主轴的圆周方向设置的流道叶片的流道,每个流道叶片由叶片底部侧的条带以刀片高度方向支撑,并由 在叶片高度方向上的叶片高度方向上的冠部,其中形成有叶轮叶片的后缘,当涡轮机运行时,弯曲部分向主轴部扩展,弯曲部分具有相对于 连接到连接后缘和冠部的冠侧后缘连接端和连接后缘和带的带侧后缘连接端的直线和由后缘和带连接的角度α, 连接最大点和冠侧后缘连接端的直线和连接最大点和带侧后缘连接端的直线设定在α' nlE; 150°。
    • 4. 发明申请
    • Francis pump-turbine
    • 弗朗西斯泵轮机
    • US20070140852A1
    • 2007-06-21
    • US11545760
    • 2006-10-11
    • Kazuyuki NakamuraKotaro TezukaToshifumi Kurokawa
    • Kazuyuki NakamuraKotaro TezukaToshifumi Kurokawa
    • B63H1/16
    • F03B3/125Y02E10/223
    • A Francis pump-turbine includes a runner provided with runner blades arranged around in a circumferential direction of a main shaft of the runner, each of the runner blades being supported by a band at a bottom side thereof in a blade height direction and supported by a crown at a head side in the blade height direction, in which the runner blade is formed, at a trailing edge thereof, with a curved portion expanding to the main shaft when the turbine is in operation, the curved portion has a maximum point with respect to a straight line connecting a crown-side trailing edge connecting end at which the trailing edge and the crown are connected and a band-side trailing edge connecting end at which the trailing edge and the band are connected, and an angle a formed by a straight line connecting the maximum point and the crown-side trailing edge connecting end and a straight line connecting the maximum point and the band-side trailing edge connecting end is set to be within a range of α≦150°.
    • 弗朗西斯泵浦涡轮机包括设置有沿着流道主轴的圆周方向设置的流道叶片的流道,每个流道叶片由叶片底部侧的条带以刀片高度方向支撑,并由 在叶片高度方向上的叶片高度方向上的冠部,其中形成有叶轮叶片的后缘,当涡轮机运行时,弯曲部分向主轴部扩展,弯曲部分具有相对于 连接到连接后缘和冠部的冠侧后缘连接端和连接后缘和带的带侧后缘连接端的直线和由后缘和带连接的角度a 连接最大点和冠侧后缘连接端的直线和连接最大点和带侧后缘连接端的直线设置在alph的范围内 a <= 150°。