JPH0367769U - - Google Patents
Info
- Publication number
- JPH0367769U JPH0367769U JP12399989U JP12399989U JPH0367769U JP H0367769 U JPH0367769 U JP H0367769U JP 12399989 U JP12399989 U JP 12399989U JP 12399989 U JP12399989 U JP 12399989U JP H0367769 U JPH0367769 U JP H0367769U
- Authority
- JP
- Japan
- Prior art keywords
- ptfe
- seal ring
- peaks
- opposing surfaces
- valleys
- 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
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 2
Landscapes
- Mechanical Sealing (AREA)
Description
第１図は本考案の一実施例を示す半裁断面図、
第２図は同じく要部断面図、第３図は他の実施例
を示す要部断面図、第４図は従来のＰＴＦＥ型メ
カニカルシールを示す半裁断面図、第５図は部分
拡大断面図である。
４……シヤフト、５……シールリング、２０…
…ＰＴＦＥベローズ、２１……蛇腹状本体部分、
２２……山部、２２ａ，２３ａ……頂部、２３…
…谷部、２２ｂ，２３ｂ……挟角部、２４……逃
げ溝、Ａ……密封対象流体。
FIG. 1 is a half-cut sectional view showing an embodiment of the present invention;
Fig. 2 is a sectional view of the main part, Fig. 3 is a sectional view of the main part showing another embodiment, Fig. 4 is a half-cut sectional view showing a conventional PTFE type mechanical seal, and Fig. 5 is a partially enlarged sectional view. be. 4...Shaft, 5...Seal ring, 20...
...PTFE bellows, 21...bellow-shaped main body part,
22... Mountain part, 22a, 23a... Top part, 23...
... Valley portion, 22b, 23b ... Narrow corner portion, 24 ... Relief groove, A ... Fluid to be sealed.
Claims (1)
転側もしくは固定側との間にＰＴＦＥベローズを
気密的に接合してなり、密封対象流体がシールリ
ング摺動面の内周側に連通する空間に存するメカ
ニカルシールにおいて、ＰＴＦＥベローズの各山
部および谷部の互いに背反する面からなる頂部が
断面Ｖ字形をなすとともに、該各山部および谷部
の互いに対向する面からなる挟角部に環状の逃げ
溝を形成したことを特徴とするＰＴＦＥベローズ
型メカニカルシール。 A mechanical seal in which a PTFE bellows is airtightly joined between a seal ring and the rotating side or stationary side that supports this seal ring, and the fluid to be sealed exists in a space that communicates with the inner circumferential side of the seal ring sliding surface. In the PTFE bellows, the apex formed by the mutually opposing surfaces of the peaks and valleys forms a V-shaped cross section, and an annular relief groove is formed at the narrow corner formed by the mutually opposing surfaces of the peaks and valleys. A PTFE bellows type mechanical seal characterized by the fact that it is made of PTFE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12399989U JPH0627891Y2 (en) | 1989-10-25 | 1989-10-25 | PTFE bellows type mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12399989U JPH0627891Y2 (en) | 1989-10-25 | 1989-10-25 | PTFE bellows type mechanical seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0367769U true JPH0367769U (en) | 1991-07-02 |
| JPH0627891Y2 JPH0627891Y2 (en) | 1994-07-27 |
Family
ID=31671945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12399989U Expired - Lifetime JPH0627891Y2 (en) | 1989-10-25 | 1989-10-25 | PTFE bellows type mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0627891Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013011325A (en) * | 2011-06-30 | 2013-01-17 | Nippon Pillar Packing Co Ltd | Mechanical seal |
-
1989
- 1989-10-25 JP JP12399989U patent/JPH0627891Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013011325A (en) * | 2011-06-30 | 2013-01-17 | Nippon Pillar Packing Co Ltd | Mechanical seal |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0627891Y2 (en) | 1994-07-27 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |