Turbine blade
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United States of America Patent
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Sep 26, 2017
Issued Date -
N/A
app pub date -
May 27, 2014
filing date -
Nov 30, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A turbine blade has hollowness, and is provided with a back-side wall of which a portion of the inner wall surface is exposed at the rear edge portion, with cooling air flown along the inner wall surface at the exposed region; and a recess provided in the inner wall surface at the exposed region. The contour of the recess (5) viewed from the normal direction of the inner wall surface of the back-side wall is set to a shape that is symmetrical centered on a reference axis (L) that intersects the flow direction of cooling air, and that broadens along the reference axis (L).
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