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US 5,706,646 AGranted
Gas turbine gas duct arrangement
AssigneeEuropean Gas Turbines Limited
InventorsBrendan J. Wilde, Nicholas J. Kemsley, Peter W. Hill
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AssigneeEuropean Gas Turbines Limited
InventorsBrendan J. Wilde, Nicholas J. Kemsley, Peter W. Hill
Estimating the term…
A transition duct arrangement for feeding combustion gases under pressure from a number (e.g. 4), of combustion chamber(s) arranged around the turbine into the annular passage containing the turbine blade structure. Each combustion chamber (5) has a transition duct section comprising a short length of the cylindrical combustion chamber walls (9 inner and 11 outer) developing into a section of annular duct (25 inner and 27 outer). The four transition duct sections make up a complete annulus but have to be clamped to the nozzle guide vane (85 FIG. 7 ) structure. The invention provides a means for combining the clamping and sealing of the transition sections efficiently and effectively.
A gas duct arrangement for a gas turbine, the gas duct arrangement being adapted to supply combustion gases from a plurality of combustion chambers to an annular duct confronting an annular turbine blade structure, the combustion chambers feeding the annular duct at positions around its circumference, and each combustion chamber having a transition duct section comprising a portion of the combustion chamber integrated with a portion of the annular duct, wherein the transition sections are fixed to annular carrier means by clamp members which interconnect and locate the transition members relative to each other and carry seals to limit leakage of the working gas from the interconnection.
Dependencies are inferred from the claim text.