Cooling circuits for trailing edge cavities in airfoils
AssigneeGeneral Electric Company
InventorsFrancisco Jose Cunha, David Anthony DeAngelis
Life of this patent
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Abstract
An airfoil having a trailing edge cavity formed by a leading wall and a trailing edge connected by a pair of side walls which converge at the trailing edge to define a cooling passage of substantially triangular cross section; a plurality of guide vanes arranged within the passage, spaced from the leading wall and trailing edge, and configured so that cooling gas flow introduced a generally radial direction is forced to flow in a direction toward the trailing edge.
Claims6
An airfoil for a gas turbine having a trailing edge cavity formed by a leading wall and a trailing edge connected by a pair of side walls which converge at said trailing edge to define a cooling passage of substantially triangular cross section;
- a first plurality of guide vanes projecting into the cavity from a first of said pair of side walls toward the other of said pair of side walls;
- and
- a second plurality of guide vanes projecting from the other of said pair of side walls towards the first of said pair of side walls;
- wherein none of said first and second plurality of guide vanes overlap in a direction transverse to a radial direction of flow of cooling fluid through the airfoil, and further wherein said first and second pluralities of guide vanes extend from said leading wall toward said trailing edge but terminate at free ends, short of said trailing edge.
Dependencies are inferred from the claim text.