JPS61125603U

JPS61125603U -

Info

Publication number: JPS61125603U
Application number: JP1985008030U
Authority: JP
Priority date: 1985-01-25
Filing date: 1985-01-25
Publication date: 1986-08-07

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例に係るガスタービン
のシール構造の断面図、第２図は従来のシール構
造の断面図、第３図はカーボンリングの平面図、
第４図は第３図のカーボンリングの側面図、第５
図はスプリングの平面図、第６図は第５図のスプ
リングの側面図、である。５……カーボンリング、７……スプリング、１
０……タービン軸、１２……ハウジング、１３…
…軸受、１４……ハウジング内周面、１５……溝
、１６，１７……スペーサ、Ａ，Ｂ……シール面
。 FIG. 1 is a sectional view of a gas turbine seal structure according to an embodiment of the present invention, FIG. 2 is a sectional view of a conventional seal structure, and FIG. 3 is a plan view of a carbon ring.
Figure 4 is a side view of the carbon ring in Figure 3, and Figure 5 is a side view of the carbon ring in Figure 3.
The figure is a plan view of the spring, and FIG. 6 is a side view of the spring shown in FIG. 5. 5...Carbon ring, 7...Spring, 1
0... Turbine shaft, 12... Housing, 13...
... Bearing, 14 ... Inner peripheral surface of housing, 15 ... Groove, 16, 17 ... Spacer, A, B ... Seal surface.

Claims

[Scope of utility model registration request]

A groove extending in the circumferential direction is provided on the outer circumferential side of the turbine shaft to form a gap between the rotating turbine shaft and the inner circumferential surface of the housing concentric with the turbine shaft, and a carbon ring is inserted into the groove to form a gap between the carbon ring and the groove. In a gas turbine seal structure that seals by contact between a side surface and a carbon ring and an inner circumferential surface of the housing, the groove on the outer circumferential side of the turbine shaft is formed by a spacer separate from the turbine shaft that is divided at the bottom of the groove. A gas turbine seal structure characterized by: