Turbine blade
AssigneeRolls-Royce (1971) Limited
InventorAlexander Scott
Life of this patent
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Abstract
A turbine blade comprising an aerofoil-shaped body having a main portion and a trailing portion, the latter being of undulating shape so as to define at each side of the blade chordally extending troughs. The blade may include cooling air holes extending from the interior of the main portion to a surface of the troughs.
Claims3
A turbine blade comprising an aerofoil-shaped body having spanwise and chordal extent and including a main portion and a trailing portion, the trailing portion having an upstream end integral with the main portion and a free downstream extremity, the trailing portion being a single wall having an undulating shape defining exteriorly of the wall and at each side thereof chordally extending troughs and ribs, wherein any one rib at one side of the wall has a hollow back defined by one of said troughs at the other side of the wall, and wherein the troughs are open to said downstream extremity and terminate at said upstream end, and cooling air holes extending between the interior of the main portion and the troughs at at least one side of the wall.
Dependencies are inferred from the claim text.