Patent ID: 6092991
Filing Date: 2000-07-25
Classification: F01D,F05D

Abstract:
A gas turbine blade including a blade trunk section, a blade root section, a platform, and a blade wheel plate, the blade comprising:cooling passages, arranged in the blade trunk section, for cooling the blade trunk section, the cooling passages being connected to one another to form a single passage and including at least a supply-side passage and a discharge-side passage;a cooling medium supply passage, arranged in the blade root section and connected to the supply-side passage, for supplying a cooling medium to the cooling passages;a pocket, arranged in the blade root section and connected between the cooling medium supply passage and one of the cooling passages other than the supply-side passage and the discharge-side passage, for bypassing the cooling medium to be supplied to the supply-side passage to the one of the cooling passages other than the supply-side passage and the discharge-side passage, the pocket being formed by interposing a plate between the platform and the blade wheel plate; anda cooling medium discharge passage, arranged in the blade root section and connected to the discharge-side passage, for discharging the cooling medium flowed through the cooling passages.