Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Blade cuff or shank construction
Reexamination Certificate
2011-08-30
2011-08-30
Nguyen, Ninh H (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Specific blade structure
Blade cuff or shank construction
C416S24100B, C416S243000
Reexamination Certificate
active
08007245
ABSTRACT:
A turbine includes a turbine wheel having a plurality of buckets, each of the buckets including a bucket airfoil, a bucket dovetail to connect the bucket to a turbine wheel and a shank shape to connect the airfoil to the bucket dovetail, the shank having an uncoated nominal profile including a concave, pressure side, substantially in accordance with Cartesian values of X, Y and Z′ set forth in Table I wherein the Z′ values are non-dimensional values in a range from 0 to 1 convertible to Z distances in inches by multiplying the Z′ values by shank height in inches, and a convex, suction side, substantially in accordance with Cartesian values of X, Y and Z′ set forth in Table II wherein the Z′ values are non-dimensional values in a range from 0 to 1 convertible to Z distances in inches by multiplying the Z′ values by the shank height in inches. The X and Y are distances in inches which, when connected by smooth continuing arcs, define a shank profile section at each distance Z, the profile sections being joined smoothly with one another to form a complete shank shape.
REFERENCES:
patent: 5980209 (1999-11-01), Barry et al.
patent: 7090466 (2006-08-01), Honkomp et al.
patent: 2008/0286109 (2008-11-01), Keith et al.
patent: 2009/0060714 (2009-03-01), Moors
patent: 2010/0166561 (2010-07-01), Boyer
U.S. Application of Brittingham et al.; U.S. Appl. No. 11/987,163, filed Nov. 28, 2007.
U.S. Application of Delong et al.; U.S. Appl. No. 11/882,373, filed Aug. 1, 2007.
U.S. Application of Chiruato et al.; U.S. Appl. No. 11/892,355, filed Aug. 22, 2007.
U.S. Application of Arness et al.; U.S. Appl. No. 11/882,531, filed Aug. 2, 2007.
Brittingham Robert Alan
Davis Holly Renae
Farral Linda Jean
Keener Chistopher Paul
General Electric Company
Nguyen Ninh H
Nixon & Vanderhye PC
LandOfFree
Shank shape for a turbine blade and turbine incorporating... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Shank shape for a turbine blade and turbine incorporating..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shank shape for a turbine blade and turbine incorporating... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2666833