Fuel spraying apparatus of gas turbine engine
AssigneeKawasaki Jukogyo Kabushiki Kaisha
InventorsTakeo Oda, Hiroyuki Ninomiya, Hideki Ogata
Life of this patent
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Abstract
A fuel spraying apparatus of a gas turbine engine includes a first fuel spraying section configured to spray fuel for diffusion combustion and a second fuel spraying section configured to spray fuel for premixed combustion. The second fuel spraying section is disposed so as to surround the first fuel spraying section. The apparatus further includes an air curtain generating section disposed between the first fuel spraying section and the second fuel spraying section. The air curtain generating section is configured to generate an air curtain which defines an outer edge of a diffusion combustion area in a combustion chamber.
Claims13
A fuel spraying apparatus of a gas turbine engine, comprising:
- a first fuel spraying section configured to spray fuel for diffusion combustion;
- a second fuel spraying section configured to spray fuel for premixed combustion, the second fuel spraying section being disposed so as to surround the first fuel spraying section;
- and
- air curtain generating section disposed between the first fuel spraying section and the second fuel spraying section, the air curtain generating section being configured to generate an air curtain which defines an outer edge of a diffusion combustion area in a combustion chamber,
- wherein the second fuel spraying section comprises an inner swirler and an outer swirler,
- wherein the second fuel spraying section comprises a premixing chamber that is formed downstream of the outer swirler, the premixing chamber being a chamber that mixes fuel and air within the second fuel spraying section, and
- wherein the first fuel spraying section, the second fuel spraying section, the air curtain generating section, and the premixing chamber are all contained within a single nozzle.
A fuel spraying apparatus of a gas turbine engine, comprising:
- a first fuel spraying section configured to spray fuel for diffusion combustion;
- a second fuel spraying section configured to spray fuel for premixed combustion, the second fuel spraying section being disposed so as to surround the first fuel spraying section;
- and
- air curtain generating section disposed directly between the first fuel spraying section and the second fuel spraying section, the air curtain generating section being configured to generate an air curtain that defines an outer edge of a diffusion combustion area in a combustion chamber, wherein the air curtain generating section comprises an open chamber formed by a wall of the first fuel spraying section and a wall of the second fuel spraying section,
- wherein the second fuel spraying section comprises an inner swirler and an outer swirler,
- wherein the second fuel spraying section comprises a premixing preliminary chamber that is formed downstream of the inner swirler, and
- wherein the first fuel spraying section, the second fuel spraying section, the air curtain generating section, and the premixing chamber are all contained within a single nozzle.
Dependencies are inferred from the claim text.