Title:
GAS TURBINE COMBUSTOR
Document Type and Number:
WIPO Patent Application WO/1989/002052
Kind Code:
A1
Abstract:
This invention relates to a gas turbine combustor of a premixing combustion system in which a fuel and the air are mixed and burnt, consisting of a cylindrical main nozzle provided on an upstream end wall of a cylindrical combustion chamber, an auxiliary nozzle formed around the main nozzle, a main premixed gas supply means for supplying a premixed gas to the main nozzle, and an auxiliary premixed gas supply means for supplying a premixed gas, the excess air ratio of which is smaller than that of the main premixed gas, to the auxiliary nozzle. Owing to this arrangement, a lean premixed gas having an excess air ratio larger than 1 can be burnt stably under low to high loads of a gas turbine.
Inventors:
IWAI YASUO (JP)
AZUHATA SHIGERU (JP)
SOHMA KENICHI (JP)
NARATO KIYOSHI (JP)
KOBAYASHI HIRONOBU (JP)
INADA TOORU (JP)
MURAKAMI TADAYOSHI (JP)
ARASHI NORIO (JP)
ISHIBASHI YOJI (JP)
KURODA MICHIO (JP)
AZUHATA SHIGERU (JP)
SOHMA KENICHI (JP)
NARATO KIYOSHI (JP)
KOBAYASHI HIRONOBU (JP)
INADA TOORU (JP)
MURAKAMI TADAYOSHI (JP)
ARASHI NORIO (JP)
ISHIBASHI YOJI (JP)
KURODA MICHIO (JP)
Application Number:
PCT/JP1988/000870
Publication Date:
March 09, 1989
Filing Date:
August 31, 1988
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
F23R3/30; F02C9/34; F23D14/26; F23D23/00; F23R3/28; F23R3/32; (IPC1-7): F23R3/28
Foreign References:
| JPH05857656B | ||||
| JPH05860124A | ||||
| JPH0630589Y2 | 1994-08-17 | |||
| JPH05634027A | ||||
| JPS426603B1 |
Other References:
See also references of EP 0335978A4
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