Air cooled bucket for a turbine

Details Air cooled bucket for a turbine Air cooled bucket for a turbine

2008-05-16

2011-11-08

Look, Edward (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Reverse curve surface

C416S243000, C416S092000, C416S09600A, C416S09700R

Reexamination Certificate

active

08052395

ABSTRACT:
A bucket for a turbine is provided. The bucket includes an airfoil having a root portion, a tip portion, an airfoil shape, and a nominal profile substantially in accordance with Cartesian coordinate values of X, Y, and Z set forth in Table I, wherein Z is a distance from a platform on which the airfoil extends outwardly from, and X and Y are coordinates defining the profile at each distance Z from the platform. The bucket also includes a plurality of cooling passages extending between the root portion and tip portion of the airfoil, each of the plurality of cooling passages exiting at the tip portion, the plurality of cooling passages positioned in a camber line pattern.

REFERENCES:
patent: 5980209 (1999-11-01), Barry et al.
patent: 6390774 (2002-05-01), Lewis et al.
patent: 6418804 (2002-07-01), Zabala et al.
patent: 6884038 (2005-04-01), Hyde et al.
patent: 6910864 (2005-06-01), Tomberg
patent: 6910868 (2005-06-01), Hyde et al.
patent: 7207775 (2007-04-01), Murrithi
patent: 2006/0045741 (2006-03-01), Honkomp

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