Turbine component with tip rail cooling passage

A turbine component includes an airfoil having an airfoil chamber disposed within the airfoil, the airfoil chamber configured to supply a coolant through the airfoil. The tip of the airfoil includes a rail extending radially from the tip plate, the rail including an inner rail surface defining a tip...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Itzel, Gary Michael, Rathay, Nicholas William
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ENGINE PLANTS IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	A turbine component includes an airfoil having an airfoil chamber disposed within the airfoil, the airfoil chamber configured to supply a coolant through the airfoil. The tip of the airfoil includes a rail extending radially from the tip plate, the rail including an inner rail surface defining a tip pocket therein, an outer rail surface and a radially outward facing rail surface between the inner rail surface and the outer rail surface. A tip rail cavity is within and partially circumscribes the rail, the tip rail cavity receiving a coolant flow. A tip rail cooling passage includes an inlet fluidly coupled to the tip rail cavity, a passage length fluidly coupled to the inlet and partially circumscribing the rail, a metering element fluidly coupled to the passage length, and an outlet fluidly coupled to the metering element and extending through the radially outward facing rail surface.