Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Reexamination Certificate
2006-02-16
2008-10-07
Look, Edward (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
With heating, cooling or thermal insulation means
Changing state mass within or fluid flow through working...
C416S09700R
Reexamination Certificate
active
07431561
ABSTRACT:
Methods and apparatus for cooling gas turbine rotor blades is provided. The blade includes an airfoil having an internal three pass serpentine cooling circuit having radially extending first, second, and third serpentine cooling cavities partially separated by, in axially aft succession, a first radially extending internal rib and a second radially extending internal rib. The serpentine cooling circuit includes a first inlet in flow communication with the first cavity and a second inlet in flow communication with at least one of the second and third cavities wherein the first and second inlets are formed during casting of the airfoil.
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Albrecht, Jr. Richard William
Hooper Tyler F.
Reddy Bhanu
Zhu Gaoqiu
Andes, Esq. WIlliam Scott
Armstrong Teasdale LLP
General Electric Company
Look Edward
White Dwayne J
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