Steam turbine rotating blade

Details Steam turbine rotating blade Steam turbine rotating blade

2011-05-24

2011-05-24

Edgar, Richard (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Rotor having flow confining or deflecting web, shroud or...

Axially extending shroud ring or casing

Reexamination Certificate

active

07946820

ABSTRACT:
A rotating blade for a steam turbine includes a root section and an airfoil section contiguous with the root section. The airfoil section is shaped to optimize aerodynamic performance while providing optimized flow distribution and minimal centrifugal and bending stresses. The blade also includes a tip section continuous with the airfoil section, and a cover formed as part of the tip section. The cover defines a radial seal that serves to minimize tip losses. The rotating blade is capable of running at operating speeds between 5626 and 11250 rotations per minute.

REFERENCES:
patent: 5267834 (1993-12-01), Dinh et al.
patent: 5277549 (1994-01-01), Chen et al.
patent: 5480285 (1996-01-01), Patel et al.
patent: 5509784 (1996-04-01), Caruso et al.
patent: 6575700 (2003-06-01), Arai et al.

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