Fluid reaction surfaces (i.e. – impellers) – Method of operation
Reexamination Certificate
2011-06-28
2011-06-28
Kershteyn, Igor (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Method of operation
C416S09700R, C415S115000
Reexamination Certificate
active
07967563
ABSTRACT:
A second stage turbine blade for an IGT includes a leading edge cooling supply channel to provide convection cooling to the leading edge region, and a blade tip cooling channel connected downstream from the leading edge supply channel to provide cooling for the blade tip region. A three-pass aft flowing serpentine cooling circuit provides convection cooling for the mid-chord region and discharges cooling air through a row of trailing edge exit holes or slots. A re-supply hole connects the end of the tip cooling channel to the second leg of the serpentine flow circuit to merge the tip channel cooling air with the serpentine flow cooling air before being discharged through the exit holes.
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Florida Turbine Technologies, Inc.
Kershteyn Igor
Ryznic John
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