Rotating gas turbine blade and gas turbine with such a blade

A rotating gas turbine blade comprises an airfoil (14) with a suction side and a pressure side (12), said airfoil (14) extending in a radial direction from a blade root to a blade tip, wherein said blade tip (15) comprises a tip shroud (16), said airfoil (14) comprises internal cooling passages (27,...

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Bibliographische Detailangaben
Hauptverfasser:	Retzko, Stefan Andreas, Gersbach, Frank, Lamminger, Marco, Balliel, Martin
Format:	Patent
Sprache:	eng ; fre ; ger
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 rotating gas turbine blade comprises an airfoil (14) with a suction side and a pressure side (12), said airfoil (14) extending in a radial direction from a blade root to a blade tip, wherein said blade tip (15) comprises a tip shroud (16), said airfoil (14) comprises internal cooling passages (27, 28) for a cooling medium, which extend through said tip shroud (16), and outlet ports (25) are provided above a selected internal airfoil cooling passage (27) for said cooling medium to be ejected above said tip shroud (16) in direction of the blade's pressure side (12). The blades' lifetime is improved by providing means (26) for avoiding dust accumulation at the tip end of said selected internal cooling passage (27). A corresponding gas turbine is also provided.