TURBINE BLADE, GAS TURBINE, INTERMEDIATE PRODUCT OF TURBINE BLADE, AND METHOD OF MANUFACTURING TURBINE BLADE

Provided are a turbine blade, a gas turbine, an intermediate product of the turbine blade, and a method of manufacturing the turbine blade. This turbine blade has a blade body (51) having hollow shape, cavities (52, 53, 54) provided inside the blade body (51), and a cooling passage (55) that opens f...

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Bibliographische Detailangaben
Hauptverfasser:	HADA, Satoshi, TORII, Shunsuke, TOMITA, Yasuoki, MATSUO, Saki, TAKAOKA, Yoshimasa, KOYABU, Hidemichi, OKAJIMA, Yoshifumi
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS ENGINE PLANTS IN GENERAL GAS-TURBINE PLANTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS 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:	Provided are a turbine blade, a gas turbine, an intermediate product of the turbine blade, and a method of manufacturing the turbine blade. This turbine blade has a blade body (51) having hollow shape, cavities (52, 53, 54) provided inside the blade body (51), and a cooling passage (55) that opens from the cavities (52, 53, 54) to the rear end portion of the blade body (51). The cooling passage (55) includes: a first passage (81) provided on the third cavity (54) side and having a width that becomes narrower from the third cavity (54) side toward the rear end portion of the blade body (51); and a second passage (82) provided on the rear end portion side of the blade body (51) and having a width that is constant from the third cavity (54) side toward the rear end portion of the blade body (51).