Title:
NOZZLE OF GAS TURBINE COMBUSTION MACHINE
Document Type and Number:
Japanese Patent JP3142924
Kind Code:
B2
Abstract:
PURPOSE: To carry out operation at a temperature lower than an allowable temperature of a nozzle member by a method wherein a disk-like spacing is provided with an air injection port opened toward a flame burning plane.
CONSTITUTION: A disk-like spacing 9 is formed between an oil fuel injection port 8 and a gas fuel injection port 6a. Flame with gas combustion under a low calorie combustion is generated at an outer circumference of a fuel nozzle 4, and then portions near the oil fuel injection port 8 and the disk-like spacing 9 are exposed to recirculation flow of high temperature. In this case, the disk- like spacing 9 is provided with the air injection port 15 and air is injected from the air injection port 15, resulting in that the surface temperature can be decreased below an allowable temperature of the material of the nozzle 4 under a cooling effect of the air. With such an arrangement, it is possible to perform the reliable operation at a temperature less than the allowable temperature of the material of the nozzle 4.
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Inventors:
Yoshikazu Moritomo
Nobuyuki Iizuka
Tsutomu Gunji
Kazumi Iwai
Hiromi Koizumi
Hiroshi Inose
Kazuhiko Kumada
Toritani New
Nobuyuki Iizuka
Tsutomu Gunji
Kazumi Iwai
Hiromi Koizumi
Hiroshi Inose
Kazuhiko Kumada
Toritani New
Application Number:
JP30593391A
Publication Date:
March 07, 2001
Filing Date:
November 21, 1991
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
F02C3/28; F02C7/22; F02C7/232; F23D17/00; F23R3/28; F23R3/36; (IPC1-7): F23R3/36; F02C7/22; F02C7/232; F23D17/00; F23R3/28
Domestic Patent References:
| JP59181928U | ||||
| JP516532U |
Attorney, Agent or Firm:
Katsuo Ogawa (2 outside)