Power plants – Combustion products used as motive fluid – Combustion products generator
Reexamination Certificate
2005-04-19
2009-02-24
Rodriguez, William H (Department: 3741)
Power plants
Combustion products used as motive fluid
Combustion products generator
C060S759000
Reexamination Certificate
active
07493767
ABSTRACT:
A method and apparatus for cooling a combustor liner and transitions piece of a gas turbine include a combustor liner with a plurality of turbulators arranged in an array axially along a length defining a length of the combustor liner and located on an outer surface thereof; a first flow sleeve surrounding the combustor liner with a first flow annulus therebetween, the first flow sleeve having a plurality of rows of cooling holes formed about a circumference of the first flow sleeve for directing cooling air from the compressor discharge into the first flow annulus; a transition piece connected to the combustor liner and adapted to carry hot combustion gases to a stage of the turbine; a second flow sleeve surrounding the transition piece a second plurality of rows of cooling apertures for directing cooling air into a second flow annulus between the second flow sleeve and the transition piece; wherein the first plurality of cooling holes and second plurality of cooling apertures are each configured with an effective area to distribute less than 50% of compressor discharge air to the first flow sleeve and mix with cooling air from the second flow annulus.
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Bailey Jeremy Clyde
Bunker Ronald Scott
Intile John C
Johnson Thomas Edward
Widener Stanley Kevin
Cantor & Colburn LLP
General Electric Company
Rodriguez William H
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