Title:
COMBUSTOR AND GAS TURBINE
Document Type and Number:
WIPO Patent Application WO/2017/204229
Kind Code:
A1
Abstract:
A combustor (3) is provided with: a fuel nozzle that extends along an axial line Ac; an inner cylinder (41) that has a cylindrical shape and covers the fuel nozzle; and a tail cylinder (42) that has a cylindrical shape extending toward the leading end (41S) side of the inner cylinder (41) and forms a cooling air passage (6), through which air from the outside is introduced, between the tail cylinder and the outer peripheral surface of the leading end (41S) of the inner cylinder (41), wherein the radial-direction position of the leading end of the inner cylinder (41) partially varies in the circumferential direction. Thus, a vortex is formed on the downstream side of the leading end (41S) of the inner cylinder (41). This vortex can expedite mixing of the air supplied through the cooling air passage (6) with a combustion gas.
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Inventors:
TAMURA ISSEI (JP)
SAITO KEIJIRO (JP)
MIYAMOTO KENJI (JP)
XUE YAOHUA (JP)
SAITO KEIJIRO (JP)
MIYAMOTO KENJI (JP)
XUE YAOHUA (JP)
Application Number:
PCT/JP2017/019278
Publication Date:
November 30, 2017
Filing Date:
May 23, 2017
Export Citation:
Assignee:
MITSUBISHI HITACHI POWER SYS (JP)
International Classes:
F23R3/42; F23R3/10; F23R3/12; F23R3/16
Domestic Patent References:
| WO2012132898A1 | 2012-10-04 |
Foreign References:
| GB669751A | 1952-04-09 |
Attorney, Agent or Firm:
MORI Ryuichirou et al. (JP)
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