JPH0241772U - - Google Patents
Info
- Publication number
- JPH0241772U JPH0241772U JP11928588U JP11928588U JPH0241772U JP H0241772 U JPH0241772 U JP H0241772U JP 11928588 U JP11928588 U JP 11928588U JP 11928588 U JP11928588 U JP 11928588U JP H0241772 U JPH0241772 U JP H0241772U
- Authority
- JP
- Japan
- Prior art keywords
- labyrinth
- block
- attached
- pressure chamber
- annular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Description
第１図は本考案による隙間調整ラビリンスシー
ルの一適用例を示す軸方向断面図、第２図は第１
図の―線に沿う周方向断面図、第３図は従来
の隙間調整ラビリンスシールの例を示す軸方向断
面図、第４図は第３図の従来例の周方向断面図で
ある。
１……動翼先端（又は回転軸）、２……ケーシ
ング（又は静翼内輪）、２ａ……ケーシング摺動
部、２ｂ……ピストンストツパ、２ｃ……板ばね
支持部、３……ラビリンスブロツク、３ａ……ラ
ビリンスブロツクの上面、４……接続部、５……
ピストン、５ａ……ピストン摺動部、６……ラビ
リンスフイン、７……板ばね、８……ボルト、９
……圧力室。
Fig. 1 is an axial cross-sectional view showing an application example of the clearance adjustment labyrinth seal according to the present invention, and Fig.
FIG. 3 is an axial sectional view showing an example of a conventional clearance adjustment labyrinth seal, and FIG. 4 is a circumferential sectional view of the conventional example shown in FIG. 3. 1... Moving blade tip (or rotating shaft), 2... Casing (or stationary blade inner ring), 2a... Casing sliding part, 2b... Piston stopper, 2c... Leaf spring support part, 3... Labyrinth Block, 3a...Top surface of labyrinth block, 4...Connection part, 5...
Piston, 5a... Piston sliding part, 6... Labyrinth fin, 7... Leaf spring, 8... Bolt, 9
...Pressure chamber.
Claims (1)
、ロータと対向する面にラビリンスフインを突設
したラビリンスブロツクを圧力媒体を介して半径
方向に移動可能に取付けた隙間調整ラビリンスシ
ールにおいて、前記圧力室を環状に形成し、この
環状圧力室にピストンと接続部とラビリンスブロ
ツクとからなる断面形の分割環状ブロツクを装
着し、このブロツクの低圧側側面に摺動材を貼付
したことを特徴とする隙間調整ラビリンスシール
。 A gap adjustment labyrinth seal in which a labyrinth block having labyrinth fins protruding from the surface facing the rotor is attached to a pressure chamber of a casing of a rotating machine or a stator blade inner ring so as to be movable in the radial direction via a pressure medium, wherein the pressure chamber is formed into an annular shape, a cross-sectional split annular block consisting of a piston, a connecting part, and a labyrinth block is attached to this annular pressure chamber, and a sliding material is attached to the low-pressure side side surface of this block. Adjustment labyrinth seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11928588U JPH0241772U (en) | 1988-09-13 | 1988-09-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11928588U JPH0241772U (en) | 1988-09-13 | 1988-09-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0241772U true JPH0241772U (en) | 1990-03-22 |
Family
ID=31364379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11928588U Pending JPH0241772U (en) | 1988-09-13 | 1988-09-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0241772U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007285521A (en) * | 2006-04-14 | 2007-11-01 | General Electric Co <Ge> | Steam turbine variable clearance packing ring assembly and steam turbine |
| JP2010223224A (en) * | 2009-03-20 | 2010-10-07 | General Electric Co <Ge> | Spring design for active and passive retractable seals |
| JP2014009681A (en) * | 2012-07-03 | 2014-01-20 | Hitachi Ltd | Seal structure of rotary machine, and rotary machine |
| WO2025004725A1 (en) * | 2023-06-29 | 2025-01-02 | 三菱重工業株式会社 | Seal device, seal system, and rotary machine |
| WO2025105126A1 (en) * | 2023-11-17 | 2025-05-22 | 三菱重工業株式会社 | Seal device for rotary machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5133251A (en) * | 1974-09-13 | 1976-03-22 | Hitachi Ltd | KAITENTAINOJI KUSHIIRUSOCHI |
-
1988
- 1988-09-13 JP JP11928588U patent/JPH0241772U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5133251A (en) * | 1974-09-13 | 1976-03-22 | Hitachi Ltd | KAITENTAINOJI KUSHIIRUSOCHI |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007285521A (en) * | 2006-04-14 | 2007-11-01 | General Electric Co <Ge> | Steam turbine variable clearance packing ring assembly and steam turbine |
| JP2010223224A (en) * | 2009-03-20 | 2010-10-07 | General Electric Co <Ge> | Spring design for active and passive retractable seals |
| JP2014009681A (en) * | 2012-07-03 | 2014-01-20 | Hitachi Ltd | Seal structure of rotary machine, and rotary machine |
| WO2025004725A1 (en) * | 2023-06-29 | 2025-01-02 | 三菱重工業株式会社 | Seal device, seal system, and rotary machine |
| WO2025105126A1 (en) * | 2023-11-17 | 2025-05-22 | 三菱重工業株式会社 | Seal device for rotary machine |