AIR COOLING BLADE OF GAS TURBINE

PURPOSE:To make it possible to utilize as sealing air the air which has been used for cooling the turbine bucket by a method wherein a cooling air passage in the turbine bucket is made to open in an intermediate chamber between the rotor and the operating gas passage. CONSTITUTION:The outlet port 72...

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Bibliographische Detailangaben
Hauptverfasser:	SHIZUTANI MITSUTAKA, AKATSU SHIGEYUKI, MATSUMOTO MANABU, KAWAIKE KAZUHIKO, KOBAYASHI SHIGEYOSHI
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 make it possible to utilize as sealing air the air which has been used for cooling the turbine bucket by a method wherein a cooling air passage in the turbine bucket is made to open in an intermediate chamber between the rotor and the operating gas passage. CONSTITUTION:The outlet port 72 of the cooling air passage 71 in the bucket of the movable blade 7 is made to open in a shank chamber 37 formed within the shank of the blade 7 and a flowout hole 73 is provided underside a sealing fin 55 on the side wall 35 of the shank so as to open in the intermediate chamber 52. Thus, the cooling air passed through the cooling air passage 71 is flowed into the intermediate chamber 52 from the flowout hole 73 so that it is reused as sealing air for the prevention of the flowing out of the operating gas and as leak air for labyrinth sealing.