Rotary kinetic fluid motors or pumps – With passage in blade – vane – shaft or rotary distributor...
Reexamination Certificate
2005-08-16
2005-08-16
Look, Edward K. (Department: 3745)
Rotary kinetic fluid motors or pumps
With passage in blade, vane, shaft or rotary distributor...
C415S191000, C416S09700R
Reexamination Certificate
active
06929445
ABSTRACT:
A turbine nozzle includes a hollow vane having opposite pressure and suction sides extending in span between outer and inner bands. The vane includes a forward flow channel behind the leading edge, an aft flow channel in front of the trailing edge, and a middle flow channel disposed therebetween. The three flow channels are disposed in flow communication with an outer plenum outside the outer band for receiving cooling air therefrom. The forward and middle channels are also disposed in flow communication with an inner plenum below the inner band for discharging the air. The aft channel discharges air through the inner band outside the inner plenum in split flow at different pressures.
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GE Aircraft Engines, low pressure turbine nozzle, on sale more than one year before Sep. 1, 2003.
Wills Humphrey Martin
Zatorski Darek Tomasz
Andes William S.
Conte Francis L.
General Electric Company
Kershteyn Igor
Look Edward K.
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