COOLED AIRFOIL

An airfoil (78) includes pressure and suction side walls that extend in a chord-wise direction between leading and trailing edges (82, 84). The pressure and suction side walls extend in a radial direction to provide an exterior airfoil surface. A main-body core cooling passage is arranged between th...

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Bibliographische Detailangaben
Hauptverfasser:	LoRICCO, Nicholas M, GAUTSCHI, Steven Bruce
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:	An airfoil (78) includes pressure and suction side walls that extend in a chord-wise direction between leading and trailing edges (82, 84). The pressure and suction side walls extend in a radial direction to provide an exterior airfoil surface. A main-body core cooling passage is arranged between the pressure and suction walls in a thickness direction and extends radially toward a platform (76a, 76b). A skin core cooling passage (98a, 98b) is arranged in one of the pressure and suction side walls to form a hot side wall and a cold side wall. The hot side wall defines a portion of the exterior airfoil surface and the cold side wall defines a portion of the skin core cooling passage (98a, 98b). The skin core cooling passage (98a, 98b) is divided by a wall into two discrete first and second skin core cooling passages (98b, 98a) each supplied with cooling fluid from opposing sides.