STATIONARY BLADE FOR GAS TURBINE

PURPOSE:To reduce radiation heat transfer quantity by constituting a stationary blade, stated in the title, of a combustor, etc., with a mandril coated with a heat reflecting film on its surface loosely fitted in a cavity of a blade part made of ceramics having a cavity inside thereof. CONSTITUTION:...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	FURUSE YUTAKA, MIYAZAKI SHOGO
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:	PURPOSE:To reduce radiation heat transfer quantity by constituting a stationary blade, stated in the title, of a combustor, etc., with a mandril coated with a heat reflecting film on its surface loosely fitted in a cavity of a blade part made of ceramics having a cavity inside thereof. CONSTITUTION:A metal reflecting film 11 having a small rediation rate is formed on the surface of a mandril 4. The mandril is loosely fitted into a hollow part of a blade part 1 made of ceramics. Cooling holes 9 are formed in the mandril 4. It is possible thereby to reduce heat coming from the seramic side by means of the metal reflecting film 11 and to contrive reduction of a cooling air quantity and to increase the efficiency of gas turbine also to reduce an interval between the ceramics and the metal so as to improve rigidity of the blade. Moreover, it is also possible to provide a heat reflecting film high in heat resistance such as a zircon film having small radiation rate even on the ceramic side of the blade part 1.