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US 2004/0163392 A1Published application
Gas turbine combustor
AssigneeMitsubishi Heavy Industries, Ltd.
InventorsKoichi Nishida, Katsunori Tanaka, Wataru Akizuki, Sadao Minagawa
Life of this patent
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Abstract
A gas turbine combustor is provided with a nozzle extension tube having an inclination outward in a diameter direction of a combustor inner cylinder and in a peripheral direction of the combustor inner cylinder. As a result, the premixed gas is transformed to a spiral flow passing into a combustion chamber while turning, i.e., an outward turning flow, thereby sufficiently mixing the premixed gas while the premixed gas is flowing in the combustion chamber.
Claims6
A gas turbine combustor comprising:
- a combustor inner cylinder;
- a diffusion flame formation cone which is disposed inside of the combustor inner cylinder and which forms diffusion flames by mixing pilot fuel with air;
- a premixed flame formation nozzle which is provided annularly between the combustor inner cylinder and a pilot flame formation cone and which forms premixed flames out of premixed gas formed by mixing main fuel with the air;
- and
- a premixed flame formation nozzle extension section which is disposed at an outlet of the premixed flame formation nozzle and which forms a flow of premixed gas turning in a peripheral direction of the combustor inner cylinder while being directing outward in a diameter direction of the combustor inner cylinder.
2 more elements
A gas turbine combustor comprising:
- a combustor inner cylinder;
- a diffusion flame formation cone which is disposed inside of the combustor inner cylinder and which forms diffusion flames by mixing pilot fuel with air;
- a premixed flame formation nozzle which is provided annularly between the combustor inner cylinder and a pilot flame formation cone and which forms premixed flames out of premixed gas formed by mixing main fuel with the air;
- and
- a premixed flame formation nozzle extension section which is disposed at an outlet of the premixed flame formation nozzle while being inclined outward in a diameter direction of the combustor inner cylinder and in a peripheral direction of the combustor inner cylinder with respect to an axial direction of the combustor inner cylinder, and which ejects premixed gas formed at the premixed flame formation nozzle.
2 more elements
A gas turbine combustor comprising:
- a combustor inner cylinder;
- a mixed gas formation cylinder which has a nozzle ejecting pilot fuel and a nozzle ejecting main fuel, and which is disposed inside of the mixed gas formation cylinder;
- and
- a mixed gas ejection extension section which is disposed at an outlet of the mixed gas formation cylinder while being inclined outward in a diameter direction of the combustor inner cylinder and in a peripheral direction of the combustor inner cylinder with respect to an axial direction of the combustor inner cylinder, and which ejects gas formed by mixing the pilot fuel with air and premixed gas formed by mixing the main fuel with the air.
1 more element
Dependencies are inferred from the claim text.