Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Blade cuff or shank construction
Reexamination Certificate
2005-08-03
2009-06-23
Nguyen, Ninh H (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Specific blade structure
Blade cuff or shank construction
C416S248000, C416S19300A
Reexamination Certificate
active
07549846
ABSTRACT:
A turbine blade is provided for use in a gas turbine engine. The turbine blade has a platform, an airfoil radially extending from the platform, and an attachment portion comprising an asymmetric root neck portion having a higher stress side and a lower stress side. The turbine blade may further have additional material and a compound fillet for dispersing strain in a region where the airfoil overhangs the neck portion.
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Butcher Randall J.
Dube Bryan P.
Golan John W.
Salzillo Richard M.
Bachman & LaPointe P.C.
Nguyen Ninh H
United Technologies Corporation
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