GAS TURBINE AIRFOIL WITH SPAR COMPRISING AN EMBEDDED PLENUM PASSAGE

A spar (72) for a vane arc segment (60) of a gas turbine engine includes an elongated spar leg (72b) that has a spar wall (76) that circumscribes a core passage (72c). There is a plenum passage (78) embedded in the spar wall between inner (76a) and outer portions (76b) of the spar wall. The inner po...

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Bibliographische Detailangaben
Hauptverfasser:	SOBANSKI, Jon E, LILES, Howard J
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 spar (72) for a vane arc segment (60) of a gas turbine engine includes an elongated spar leg (72b) that has a spar wall (76) that circumscribes a core passage (72c). There is a plenum passage (78) embedded in the spar wall between inner (76a) and outer portions (76b) of the spar wall. The inner portion of the spar wall is fully solid such that the plenum passage is fluidly isolated from the core passage. The outer portion of the spar wall has a plurality of cooling through-holes (80) for emitting cooling air (F) from the plenum passage.