Turbine blade
AssigneesIHI Corporation, The Society of Japanese Aerospace Companies
InventorsYoji OKITA, Akira MURATA
Life of this patent
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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).
Claims5
A turbine blade having hollowness, comprising a front-side wall in which a blowout port is provided at the rear edge portion;
- a back-side wall of which a portion of the inner wall surface is exposed from the blowout port, with cooling air flown along the inner wall surface at the exposed region;
- and a recess provided in the inner wall surface of the back-side wall at the exposed region,
- wherein the contour of the recess 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 that intersects the flow direction of cooling air, and that broadens along the reference axis.
Dependencies are inferred from the claim text.