TURBINE BLADE WITH ROOT NOTCH
PROBLEM TO BE SOLVED: To provide a turbine blade of a gas turbine engine. SOLUTION: A turbine blade (10) includes a blade-shaped part (16) and a dovetail (18). The dovetail includes a pair of support tongues (26). A rectangular root block (26) is astride the tongues over most portions of root ends o...
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a turbine blade of a gas turbine engine. SOLUTION: A turbine blade (10) includes a blade-shaped part (16) and a dovetail (18). The dovetail includes a pair of support tongues (26). A rectangular root block (26) is astride the tongues over most portions of root ends of the tongues. The block is terminated before one end face (40) of the dovetail, and a root notch (42) to selectively reduce the weight is formed there. The root block (36) is coupled with the lower tongue (26) in a first fillet (44), and the root notch (42) is connected to the block in a second fillet (46). COPYRIGHT: (C)2004,JPO |
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