Turbine airfoil with improved cooling
AssigneeUnited Technologies Corporation
InventorsMatthew Devore, Corneil Paauwe
Life of this patent
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Abstract
A turbine airfoil includes an outer wall and a plurality of cooling passages or minicores formed in the outer wall. A web separates each adjacent pair of the minicores. In order to provide more effective, even cooling of the airfoil, a baffle inside the airfoil includes a plurality of outlets aligned with the webs. The fluid outlets direct the cooling fluid directly onto the web. The cooling fluid then flows through the minicores and out through exits in the minicores.
Claims19
A turbine airfoil comprising:
- an outer wall;
- a pair of cooling passages formed in the outer wall;
- a web separating the pair of cooling passages;
- and
- a fluid outlet aligned with the web for directing a cooling fluid onto an interior surface of the web.
A method of cooling a turbine airfoil assembly including the steps of:
- directing a cooling fluid into an interior of a turbine airfoil;
- directing the cooling fluid onto an interior surface between an inlet to a first cooling passage and an inlet to a second cooling passage;
- and
- flowing the cooling fluid through the first cooling passage and the second cooling passage.
A baffle for a turbine airfoil assembly comprising:
- a baffle wall through which a plurality of apertures are formed, the baffle wall defining an inlet at a radial end, the inlet in fluid communication with the apertures, the apertures arranged to align between cooling passages in a turbine airfoil.
Dependencies are inferred from the claim text.