JPH0317470U - - Google Patents
Info
- Publication number
- JPH0317470U JPH0317470U JP7882689U JP7882689U JPH0317470U JP H0317470 U JPH0317470 U JP H0317470U JP 7882689 U JP7882689 U JP 7882689U JP 7882689 U JP7882689 U JP 7882689U JP H0317470 U JPH0317470 U JP H0317470U
- Authority
- JP
- Japan
- Prior art keywords
- lip seal
- seawater
- sealing device
- shape memory
- tip
- 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
- 239000013535 sea water Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 3
- 239000010687 lubricating oil Substances 0.000 claims description 2
- 230000007423 decrease Effects 0.000 claims 1
Landscapes
- Sealing Devices (AREA)
Description
第１図は本考案船尾管軸封装置の一実施例を示
す部分的な断面図、第２図は同じく要部拡大断面
図である。
２……プロペラ軸、５……ケーシング、６……
スリーブライナ、７……対海水用リツプシール、
８……対潤滑油用リツプシール、９，１０……セ
グメントシール、１２……形状記憶合金製エキス
テンシヨンスプリング、１４……蓋部。
FIG. 1 is a partial cross-sectional view showing an embodiment of the stern tube shaft sealing device of the present invention, and FIG. 2 is an enlarged cross-sectional view of the main parts. 2...Propeller shaft, 5...Casing, 6...
Sleeve liner, 7...lip seal for seawater,
8... Lip seal for lubricating oil, 9, 10... Segment seal, 12... Shape memory alloy extension spring, 14... Lid.
Claims (1)
、対海水用リツプシールと、対潤滑油用リツプシ
ールと、両リツプシールの間の加圧気体が導入さ
れる環状の室に装着された一対のセグメントシー
ルとを有する船尾管軸封装置において、前記対海
水用リツプシールの先端部を外周から締付けるエ
キステンシヨンスプリングが、高温域で前記先端
部への締付け力が減少する方向に形状記憶処理さ
れた形状記憶合金からなることを特徴とする船尾
管軸封装置。 ２ 形状記憶合金からなるエキステンシヨンスプ
リングの外側は、対海水用リツプシールの先端部
に設けた蓋部で覆われていることを特徴とする請
求項１に記載の船尾管軸封装置。[Claims for Utility Model Registration] 1. A lip seal for seawater, a lip seal for lubricating oil, and an annular chamber into which pressurized gas is introduced between the lip seals, into the inner periphery of the casing into which the propeller shaft is inserted. In a stern tube shaft sealing device having a pair of segment seals installed, an extension spring that tightens the tip of the seawater lip seal from the outer periphery is configured such that the tightening force to the tip decreases in a high temperature range. A stern tube shaft sealing device comprising a shape memory alloy treated with shape memory. 2. The stern tube shaft sealing device according to claim 1, wherein the outside of the extension spring made of a shape memory alloy is covered with a lid provided at the tip of a lip seal for seawater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7882689U JPH0317470U (en) | 1989-07-04 | 1989-07-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7882689U JPH0317470U (en) | 1989-07-04 | 1989-07-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0317470U true JPH0317470U (en) | 1991-02-21 |
Family
ID=31622438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7882689U Pending JPH0317470U (en) | 1989-07-04 | 1989-07-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0317470U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006103569A (en) * | 2004-10-07 | 2006-04-20 | Hino Motors Ltd | Shock-absorbing structure of chassis frame |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5927346B2 (en) * | 1978-09-29 | 1984-07-05 | 住友化学工業株式会社 | Production method of γ↓-acyl↓-γ↓-butyrolactone |
-
1989
- 1989-07-04 JP JP7882689U patent/JPH0317470U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5927346B2 (en) * | 1978-09-29 | 1984-07-05 | 住友化学工業株式会社 | Production method of γ↓-acyl↓-γ↓-butyrolactone |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006103569A (en) * | 2004-10-07 | 2006-04-20 | Hino Motors Ltd | Shock-absorbing structure of chassis frame |
| JP4598473B2 (en) * | 2004-10-07 | 2010-12-15 | 日野自動車株式会社 | Shock absorption structure of chassis frame |
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