JPH0256973U - - Google Patents
Info
- Publication number
- JPH0256973U JPH0256973U JP13545688U JP13545688U JPH0256973U JP H0256973 U JPH0256973 U JP H0256973U JP 13545688 U JP13545688 U JP 13545688U JP 13545688 U JP13545688 U JP 13545688U JP H0256973 U JPH0256973 U JP H0256973U
- Authority
- JP
- Japan
- Prior art keywords
- seal
- shaft
- primary
- ring
- primary seal
- 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
- 238000007796 conventional method Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Sealing Devices (AREA)
Description
第１図は本考案の一実施例の断面図、第２図は
従来技術の断面図、第３図は従来技術を適用した
油圧ポンプの断面図である。
１…本体、２…シヤフト、３…ベアリング、４
…１次シール、５…１次シール受、６…２次シー
ル、７…２次シール受、８…スナツプリング、９
…ドレンポート、１０…液体封入部、１１…気体
が充満している外部空間、１２…中空のＯ―リン
グ、１３…加圧チユーブ、１４…弁。
FIG. 1 is a sectional view of an embodiment of the present invention, FIG. 2 is a sectional view of a conventional technique, and FIG. 3 is a sectional view of a hydraulic pump to which the conventional technique is applied. 1...Body, 2...Shaft, 3...Bearing, 4
...Primary seal, 5...Primary seal receiver, 6...Secondary seal, 7...Secondary seal receiver, 8...Snap spring, 9
...Drain port, 10...Liquid sealing part, 11...External space filled with gas, 12...Hollow O-ring, 13...Pressure tube, 14...Valve.
Claims (1)
ール装置において、加圧して脹らませた時シヤフ
トに密着する膨張可能な中空のＯ―リングを１次
シールと２次シールとの間に設けたことを特徴と
するシヤフトシール装置。 In a shaft seal device equipped with a primary seal and a secondary seal, an expandable hollow O-ring that tightly contacts the shaft when inflated under pressure is provided between the primary seal and the secondary seal. A shaft seal device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13545688U JPH0256973U (en) | 1988-10-19 | 1988-10-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13545688U JPH0256973U (en) | 1988-10-19 | 1988-10-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0256973U true JPH0256973U (en) | 1990-04-24 |
Family
ID=31395099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13545688U Pending JPH0256973U (en) | 1988-10-19 | 1988-10-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0256973U (en) |
-
1988
- 1988-10-19 JP JP13545688U patent/JPH0256973U/ja active Pending