Power plants – Combustion products used as motive fluid – Combustion products generator
Reexamination Certificate
2011-04-19
2011-04-19
Cuff, Michael (Department: 3741)
Power plants
Combustion products used as motive fluid
Combustion products generator
C060S742000
Reexamination Certificate
active
07926279
ABSTRACT:
A gas sleeve (120) for a combustor (408) of gas turbine engine (400) attaches to a support housing (100) of the combustor (408) to convey a fuel gas and to fit within a fuel rocket (110). The gas sleeve (120) comprises a plurality of apertures (128) formed to provide impingement cooling. The apertures (128) comprise a tilt angle directed toward a structure in need of impingement cooling, for instance a weld joint (114) that attaches the fuel rocket (110) to the support housing (100). The apertures (128) additionally may comprise a rotational angle effective to create a rotationally swirling flow of the portion of fuel gas that passes through the apertures (128). A method of operation using this structure also is provided.
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Bland Robert J.
Wasif Samer P.
Cuff Michael
Nguyen Andrew
Siemens Energy Inc.
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