Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Reexamination Certificate
2007-09-18
2007-09-18
Edgar, Richard A. (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
With heating, cooling or thermal insulation means
Changing state mass within or fluid flow through working...
Reexamination Certificate
active
11138173
ABSTRACT:
A cooling system for a turbine airfoil of a turbine engine having multiple segmented ribs aligned together spanwise within a trailing edge cooling channel. The segmented ribs may be positioned proximate to a trailing edge of the turbine airfoil to facilitate increased heat removal with less cooling fluid flow, thereby resulting in increased cooling system efficiency, and to increase the structural integrity of the trailing edge of the airfoil. The segmented ribs may include crossover orifices that provide structural integrity to ceramic cores used during manufacturing to prevent cracking and other damage.
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Edgar Richard A.
Siemens Power Generation, Inc.
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