JPH01136631U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の一実施例の平面図、第２図は
第１図の―鎖線による一部切欠正面図、第３
図は本考案の他の実施例の平面図、第４図は第３
図の―鎖線による一部切欠正面図、第５図は
第４図の―鎖線による断面図、第６図は従来
の軸流排気ガスタービンの可変ノズル機構の平面
図、第７図は同じく一部切欠正面図、第８図は第
７図の―断面図、第９図および第１０図はノ
ズル翼上下面の隙間を説明する図である。 １……ノズル外輪、１ａ……ノズル外輪の内面
、２……ノズル内輪、２ａ……ノズル内輪の外面
、３……ノズル翼、３ａ……ノズル翼上面の前縁
、３ｂ……ノズル翼上面の後縁、３ｃ……ノズル
翼下面の前縁、３ｄ……ノズル翼下面の後縁、３
ｅ……ノズル翼上面、３ｆ……ノズル翼下面、４
……ノズル軸、５……ノズル駆動レバー、６……
ナツト、７……ブツシユ、１０……ノズル外輪内
面とノズル翼上面との隙間、１１……ノズル内輪
外面とノズル翼下面との隙間、１２……ノズル外
輪内面とノズル翼上面との隙間、２０……軸芯、
３０……ノズルスロート幅、４０……ノズル外輪
の球面座、４１……ノズル内輪の球面座。 Fig. 1 is a plan view of one embodiment of the present invention, Fig. 2 is a partially cutaway front view indicated by the chain line in Fig. 1, and Fig. 3 is a partially cutaway front view of Fig. 1.
The figure is a plan view of another embodiment of the present invention, and Fig. 4 is a plan view of another embodiment of the present invention.
Figure 5 is a partially cutaway front view drawn by the chain line in Figure 4, Figure 5 is a sectional view drawn by the chain line in Figure 4, Figure 6 is a plan view of the variable nozzle mechanism of a conventional axial flow exhaust gas turbine, and Figure 7 is the same. FIG. 8 is a cross-sectional view of FIG. 7, and FIGS. 9 and 10 are diagrams illustrating the gap between the upper and lower surfaces of the nozzle blade. 1... Nozzle outer ring, 1a... Inner surface of nozzle outer ring, 2... Nozzle inner ring, 2a... Outer surface of nozzle inner ring, 3... Nozzle blade, 3a... Leading edge of nozzle blade upper surface, 3b... Nozzle blade upper surface Trailing edge, 3c... Leading edge of the lower surface of the nozzle blade, 3d... Trailing edge of the lower surface of the nozzle blade, 3
e...Top surface of nozzle blade, 3f...Bottom surface of nozzle blade, 4
... Nozzle shaft, 5 ... Nozzle drive lever, 6 ...
Nut, 7... Bush, 10... Gap between the inner surface of the nozzle outer ring and the upper surface of the nozzle blade, 11... Gap between the outer surface of the nozzle inner ring and the lower surface of the nozzle blade, 12... Gap between the inner surface of the nozzle outer ring and the upper surface of the nozzle blade, 20 ...Axis core,
30... Nozzle throat width, 40... Spherical seat of nozzle outer ring, 41... Spherical seat of nozzle inner ring.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ノズル内輪外面とノズル下面およびノズル外輪
内面とノズル上面をそれぞれノズル軸芯の延長線
上に中心を持つ球面により構成したことを特徴と
する軸流排気がスタービンの可変ノズル装置。 A variable nozzle device for a turbine with axial flow exhaust, characterized in that the outer surface of the inner ring of the nozzle, the lower surface of the nozzle, and the inner surface of the outer ring of the nozzle and the upper surface of the nozzle are each formed by a spherical surface whose center is on an extension of the nozzle axis.