Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Reexamination Certificate
2007-11-20
2007-11-20
Nguyen, Ninh H. (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
With heating, cooling or thermal insulation means
Changing state mass within or fluid flow through working...
C416S092000
Reexamination Certificate
active
11293461
ABSTRACT:
A turbine airfoil usable in a turbine engine and having at least one cooling system. The cooling system may include a pressure side serpentine cooling channel and a suction side serpentine cooling channel. The cooling channels may be nested within each other to optimize heat exchange between the cooling fluids and the materials forming the airfoil, to reduce the amount of cooling fluids required, to reduce the required pressure of the cooling fluids, and to provide other benefits. The pressure side serpentine cooling channel may pass cooling fluids chordwise towards the trailing edge, and the suction side serpentine cooling channel may pass cooling fluids chordwise towards the leading edge.
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Nguyen Ninh H.
Siemens Power Generation, Inc.
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