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US 2008/0184708 A1Published application
Gas Turbine Combustor
AssigneeMitsubishi Heavy Industries, Ltd.
InventorsAtsushi Moriwaki, Masataka Ohta, Keijiro Saitoh, Satoshi Tanimura, Shinji Akamatsu, Norihiko Nagai
Life of this patent
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Abstract
A gas turbine combustor includes a pilot burner, a plurality of main burners disposed around the main burners on the radially outer side. Each of the main burners (2) includes an extension tube disposed at the downstream end. The outlet of the extension tube is shaped to have a radial edge which is parallel to the radial direction. In this manner, occurrence of flashback is effectively prevented.
Claims15
1-18. (canceled)
A gas turbine combustor comprising:
- a pilot burner;
- a plurality of main burners disposed around said pilot burner;
- and
- a basal plate for supporting said pilot burner and said main burners,
- wherein each of said main burners includes an extension tube provided at an downstream end thereof,
- wherein an outlet of said extension tube is formed so as to have two radial edges each of which is parallel to a radial direction, and circumferential edges connecting said radial edges,
- wherein said extension tubes are located downstream of said basal plate,
- wherein and said basal plate is provided with openings for allowing sweep air to flow therethrough toward downstream, and
- wherein an opening ratio of said openings in a region between every adjacent two of said extension tubes is larger than that of said openings in other regions.
6 more elements
A gas turbine combustor comprising:
- a pilot burner;
- and
- a plurality of main burners disposed around said pilot burner, outside with respect to a radial direction,
- wherein each of said main burners includes an extension tube provided at an downstream end
- wherein an outlet of said extension tube is elongated so as to extend in a longitudinal direction, and
- wherein said longitudinal direction is oriented diagonally with respect to said radial direction.
3 more elements
Dependencies are inferred from the claim text.