JPS57190165A - Mechanical seal - Google Patents
Mechanical sealInfo
- Publication number
- JPS57190165A JPS57190165A JP7403281A JP7403281A JPS57190165A JP S57190165 A JPS57190165 A JP S57190165A JP 7403281 A JP7403281 A JP 7403281A JP 7403281 A JP7403281 A JP 7403281A JP S57190165 A JPS57190165 A JP S57190165A
- Authority
- JP
- Japan
- Prior art keywords
- chamber
- subsealed
- sealing
- main
- sealed chamber
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3492—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member with monitoring or measuring means associated with the seal
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Sealing (AREA)
Abstract
PURPOSE:To decrease a load applied to sealing end faces of a seal and spread a range of its limit use, by providing a subsealed chamber independently of a main sealed chamber at the back side of one of the sealing rings and arranging internal pressure of said subsealed chamber lower than sealed fluid pressure in the main sealed chamber by a prescribed level. CONSTITUTION:A main sealed chamber 18 is formed appearing to sealing end faces 4a, 5a in a seal housing 1, and a sealed liquid flow passage 19, communicated to the main sealed chamber 18, is formed in the seal housing 1. While a subsealed chamber 20 is formed independently of the main sealed chamber 18 appearing at the back side of a stationary sealing ring 4, of both sealing rings 4, 5, by a fixed member 7, sealing retainer 6 and O-rings 9, 21. Then the subsealed chamber 20 is controlled so that its internal pressure may be lower than pressure of sealed liquid in the main sealed chamber 18 through a pressure adjusting liquid passage 22 formed in the housing 1 and the fixed member 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7403281A JPS57190165A (en) | 1981-05-14 | 1981-05-14 | Mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7403281A JPS57190165A (en) | 1981-05-14 | 1981-05-14 | Mechanical seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57190165A true JPS57190165A (en) | 1982-11-22 |
| JPS6222028B2 JPS6222028B2 (en) | 1987-05-15 |
Family
ID=13535397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7403281A Granted JPS57190165A (en) | 1981-05-14 | 1981-05-14 | Mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57190165A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102991657A (en) * | 2012-12-11 | 2013-03-27 | 山东省科学院海洋仪器仪表研究所 | Underwater internal pressure compensation miniature dynamic seal rotation device and underwater monitoring equipment |
| CN104373375A (en) * | 2014-10-30 | 2015-02-25 | 江苏海天泵阀制造有限公司 | Axially adjustable corrugated diaphragm type sealing assembly |
-
1981
- 1981-05-14 JP JP7403281A patent/JPS57190165A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102991657A (en) * | 2012-12-11 | 2013-03-27 | 山东省科学院海洋仪器仪表研究所 | Underwater internal pressure compensation miniature dynamic seal rotation device and underwater monitoring equipment |
| CN104373375A (en) * | 2014-10-30 | 2015-02-25 | 江苏海天泵阀制造有限公司 | Axially adjustable corrugated diaphragm type sealing assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6222028B2 (en) | 1987-05-15 |
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