Power plants – Combustion products used as motive fluid – Combustion products generator
Patent
1992-12-23
1994-10-04
Bertsch, Richard A.
Power plants
Combustion products used as motive fluid
Combustion products generator
60748, 2391325, 239406, F23C 500
Patent
active
053514890
ABSTRACT:
A fuel jetting nozzle assembly for use in a gas turbine combustor comprises a nozzle head secured to a head plate, a fuel jetting nozzle secured to the nozzle head and having fuel jetting holes opened to an inside of a combustion chamber, swirling vanes disposed on an outer peripheral portion of the fuel jetting nozzle for supplying air as an annular swirling flow in the combustion chamber of the combustor liner, the fuel jetting holes being formed at base portions of the swirling vanes, and a cooling member composed of a plurality of cooling holes formed to a front end portion of the fuel jetting nozzle so as to introducing a portion of the air into a forward portion of a central portion of the front end portion of the nozzle jetting from an upstream side of the swirling vanes. The cooling member further comprises an air introducing pipe disposed to the front end portion of the fuel jetting nozzle means and an air header attached to an inner surface of the front end portion of the fuel jetting nozzle. The cooling member is substituted by a pipe member formed to the nozzle head for jetting a fuel inside the fuel jetting nozzle and colliding the jetted fuel against an inner surface of the central portion of the front end portion of the fuel jetting nozzle so as to cool the central portion thereof.
REFERENCES:
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patent: 3764071 (1973-10-01), Carlisle
patent: 3777983 (1973-12-01), Hibbins
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patent: 4198815 (1980-04-01), Bobo et al.
patent: 4726192 (1988-02-01), Willis et al.
patent: 4825658 (1989-05-01), Beebe
Kobayashi Takahiro
Okamoto Hiroaki
Bertsch Richard A.
Kabushiki Kaisha Toshiba
Thorpe Timothy S.
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