Three dimensional blade
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United States of America Patent
Stats
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Mar 23, 2004
Grant Date -
May 8, 2003
app pub date -
Jun 21, 2002
filing date -
Jun 27, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to an improved three dimensional blade for axial steam turbine comprising a leading edge with inlet flow angle and a trailing edge with an outflow angle a pressure face, suction face and a chord which is the line connecting the leading and trailing edge and the betabi the stagger angle formed to the intersection of said chord and U-axis wherein the blade is made of varying cross-sections of profiles and and leaned such that the center of gravity of mid sections are shifted opposite to the direction of blade rotation and the blade sections from hub to tip are twisted to a gradual manner.
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