Hydraulic machine
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United States of America Patent
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Nov 10, 2015
Grant Date -
Apr 8, 2010
app pub date -
Oct 5, 2009
filing date -
Oct 3, 2008
priority date (Note) -
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Abstract
A hydraulic machine having a hydro turbine runner which has a crown at a center and a band along an outer periphery, and is formed around the axis of rotation, long blades which are arranged along the circumferential direction of the axis of rotation, and whose center-side ends are supported by the crown, and periphery-side ends are supported by the band, and short blades which are arranged between the long blades, and whose center-side ends are supported by the crown, periphery-side ends are supported by the band, and rear edges are curved in a rotation direction of the hydro turbine runner in turbine operation, on a plane of projection perpendicular to the axis of rotation.
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