Apparatus for mixing fuel in a gas turbine nozzle
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United States of America Patent
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Nov 22, 2016
Grant Date -
Jun 25, 2015
app pub date -
Dec 20, 2013
filing date -
Dec 20, 2013
priority date (Note) -
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Abstract
A fuel nozzle in a combustion turbine engine that includes: a fuel plenum defined between an circumferentially extending shroud and axially by a forward tube-sheet and an aft tube-sheet; and a mixing-tube that extends across the fuel plenum that defines a passageway connecting an inlet formed through the forward tube-sheet and an outlet formed through the aft tube-sheet, the mixing-tube comprising one or more fuel ports that fluidly communicate with the fuel plenum. The mixing-tube may include grooves on an outer surface, and be attached to the forward tube-sheet by a connection having a fail-safe leakage path.
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