Platform with cooling circuit
First Claim
Patent Images
1. A turbine engine component comprising:
- an airfoil portion;
said airfoil portion being bounded by a platform at one end;
said platform having an as-cast open cavity bordered by at least one as-cast landing;
a plate welded to said at least one as-cast landing to cover said as-cast open cavity; and
said cavity having an entrance area and said plate having an opening which overlies said entrance area wherein said opening is in a trailing edge portion of said plate.
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Abstract
A turbine engine component has an airfoil portion, which airfoil portion is bounded by a platform at one end. The platform has an as-cast open cavity bordered by at least one as-cast landing. A plate is welded to the at least one as-cast landing to cover and close the as-cast open cavity. A process for forming the turbine engine component is described.
16 Citations
16 Claims
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1. A turbine engine component comprising:
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an airfoil portion; said airfoil portion being bounded by a platform at one end; said platform having an as-cast open cavity bordered by at least one as-cast landing; a plate welded to said at least one as-cast landing to cover said as-cast open cavity; and said cavity having an entrance area and said plate having an opening which overlies said entrance area wherein said opening is in a trailing edge portion of said plate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A process for forming a turbine engine component comprising the steps of:
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casting a turbine engine component having an airfoil portion with a pressure side and a suction side and a platform with an open cavity and a landing positioned on a periphery of said cavity; positioning a plate over an opening in said open cavity, wherein said positioning step comprises positioning said plate with an opening over an entrance area in said open cavity wherein said opening is in a trailing edge portion of said plate; and welding said plate to said landing to close said cavity. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A turbine engine component comprising:
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an airfoil portion; said airfoil portion being bounded by a platform at one end; said platform having an as-cast open cavity bordered by at least one as-cast landing; and a plate welded to said at least one as-cast landing to cover said as-cast open cavity, wherein said cavity having an entrance area and said plate having an opening which overlies said entrance area, said opening is in a trailing edge portion of said plate said cavity having an exit area in a leading edge portion thereof and said exit area having a plurality of holes for directing cooling air over a hot gas path side of said platform.
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Specification