Aerodynamically wide range applicable cylindrical blade...

Details Aerodynamically wide range applicable cylindrical blade... Aerodynamically wide range applicable cylindrical blade...

2007-02-20

2007-02-20

Look, Edward K. (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Radial flow devices

C416SDIG004, C416SDIG004

Reexamination Certificate

active

10861602

ABSTRACT:
The present invention relates to the improved aerodynamic design of a pair of blade profiles valid over a wide range of flow regime. The so formed blades, pertain to high pressure, intermediate pressure and first few stages of low pressure cylinders of axial steam turbines.The invented blades cover a wide range of stagger angles; pitch/chord ratios; inlet flow angles and outlet Mach numbers.

REFERENCES:
patent: 2415847 (1947-02-01), Redding
patent: 3333817 (1967-08-01), Rhomberg
patent: 3565548 (1971-02-01), Fowler et al.
patent: 4695228 (1987-09-01), Purcaru
patent: 5035578 (1991-07-01), Tran
patent: 5192190 (1993-03-01), Ferleger et al.
patent: 5211703 (1993-05-01), Ferleger et al.
patent: 6709239 (2004-03-01), Chandraker
patent: 6739838 (2004-05-01), Bielek et al.
patent: 6802695 (2004-10-01), Haller
patent: 2003/0231961 (2003-12-01), Chandraker

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