JPS58137234U

JPS58137234U - Combustor injection valve

Info

Publication number: JPS58137234U
Application number: JP3332082U
Authority: JP
Inventors: 秀実藤; 中野　静嘉
Original assignee: 石川島播磨重工業株式会社
Priority date: 1982-03-11
Filing date: 1982-03-11
Publication date: 1983-09-14

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図はガスタービン燃焼器の原理を示す模式断面図、
第２図は従来の燃焼器用圧力噴射弁を示す断面図、第３
図は従来の燃焼器用蒸発型噴射弁を示す断面図、第４図
は本考案に係る燃焼器用噴射弁の好適一実施例を示す断
面図、第５図は第４図の要部を示ず拡大断面並びに正面
図である。なお、図中１１は燃焼室、１６は噴射弁、１７は内側空
気導入通路、１８は噴射孔、３０は燃料供給口、３１は
案内部、３３は外側空気導入通路、３４は外側噴射口で
ある。Figure 1 is a schematic sectional view showing the principle of a gas turbine combustor.
Figure 2 is a sectional view showing a conventional pressure injection valve for a combustor;
The figure is a sectional view showing a conventional evaporative injection valve for a combustor, FIG. 4 is a sectional view showing a preferred embodiment of the combustor injection valve according to the present invention, and FIG. 5 does not show the main parts of FIG. 4. They are an enlarged cross section and a front view. In the figure, 11 is a combustion chamber, 16 is an injection valve, 17 is an inner air introduction passage, 18 is an injection hole, 30 is a fuel supply port, 31 is a guide part, 33 is an outer air introduction passage, and 34 is an outer injection port. be.

Claims

[Scope of utility model registration request]

An inner air introduction passage is formed facing the axis of the combustion chamber, and an inner peripheral wall is provided on the upstream side of the injection hole on the downstream side of the inner air introduction passage, and fuel is supplied as a swirling flow along the inner peripheral wall. The inner diameter of the fuel supply port is successively reduced from the fuel supply port to the injection hole on the downstream side, and the fuel flowing along the inner peripheral wall is thinned and uniformly guided. It has a guide part that performs primary fuel atomization, and an outer injection port that is provided on the outside of the injection hole and allows air to flow along the atomized fuel that is injected from the injection hole together with the combustion air. and an outer air introduction passage for performing secondary fuel atomization at the injection port.