Blade structure in a gas turbine

Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Vane or deflector

Reexamination Certificate

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Details

C415S211200

Reexamination Certificate

active

06887042

ABSTRACT:
In the blade structure in a gas turbine, front-edge including angles are made large. As a result, a curve of a relative relationship between incidence angles ic1and is1and pressure loss becomes mild. Entrance metal angles are made small. As a result, it becomes possible to make the incidence angles small. Chord length of a tip portion of a moving blade is made large. As a result, it becomes possible to make small the deceleration on a rear surface of the tip portion of the moving blade. Accordingly, it becomes possible to make the pressure loss small, and therefore, it becomes possible to improve the turbine efficiency.

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