Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Radial flow devices
Reexamination Certificate
2008-07-18
2011-11-15
Blum, David S (Department: 2813)
Fluid reaction surfaces (i.e., impellers)
Specific blade structure
Radial flow devices
C416S22300B, C416S24100B
Reexamination Certificate
active
08057188
ABSTRACT:
A compressor component having an airfoil with a profile in accordance with Table 1 is disclosed. The compressor component, such as a compressor blade, has an increased thickness over a portion of the airfoil span in order to increase stiffness. Furthermore, the airfoil has been restacked so as to induce a compressive stress in the blade root/attachment area. The increased stiffness and restacked airfoil combine to improve high-cycle fatigue capability of the compressor component.
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Moore Robert
Parker David
Ramirez Richard
Strohl J. Page
Alstom Technologies Ltd. LLC
Blum David S
Shook, Hardy & Bacon .LL.P.
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