JPH0360658U - - Google Patents
Info
- Publication number
- JPH0360658U JPH0360658U JP12138589U JP12138589U JPH0360658U JP H0360658 U JPH0360658 U JP H0360658U JP 12138589 U JP12138589 U JP 12138589U JP 12138589 U JP12138589 U JP 12138589U JP H0360658 U JPH0360658 U JP H0360658U
- Authority
- JP
- Japan
- Prior art keywords
- bellows
- ptfe
- seal ring
- mechanical seal
- valley
- 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 8
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 claims 2
- 230000002787 reinforcement Effects 0.000 description 1
Landscapes
- Mechanical Sealing (AREA)
Description
第１図は本考案ＰＴＦＥベローズ型メカニカル
シールの第一実施例を示す要部断面図、第２図は
第二実施例を示す要部断面図、第３図は従来のＰ
ＴＦＥベローズ型メカニカルシールを示す半裁断
面図、第４図は内周側圧力によるＰＴＦＥベロー
ズの変形状態を示す説明図である。
４……シヤフト、５……シールリング、１０…
…ＰＴＦＥベローズ、１３……蛇腹状本体部分、
１３ｂ……谷部、１４……補強バンド、１５……
ガータスプリング、Ａ……密封対象流体。
Fig. 1 is a sectional view of the main part showing the first embodiment of the PTFE bellows type mechanical seal of the present invention, Fig. 2 is a sectional view of the main part showing the second embodiment, and Fig. 3 is a sectional view of the main part of the PTFE bellows type mechanical seal of the present invention.
FIG. 4 is a half-cut sectional view showing a TFE bellows type mechanical seal, and is an explanatory view showing a deformed state of the PTFE bellows due to pressure on the inner peripheral side. 4...Shaft, 5...Seal ring, 10...
...PTFE bellows, 13...bellow-shaped main body part,
13b...Tanibe, 14...Reinforcement band, 15...
Garter spring, A...Fluid to be sealed.
Claims (1)
回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ベローズの蛇
腹状本体部分の各谷部外周面に、環状の補強バン
ドを密接状態に装着したことを特徴とするＰＴＦ
Ｅベローズ型メカニカルシール。 ２ 請求項１の記載において、ＰＴＦＥベローズ
の蛇腹状本体部分の各谷部外周面に、環状の補強
バンドに代えてガータスプリングを緊締装着した
ことを特徴とするＰＴＦＥベローズ型メカニカル
シール。[Claims for Utility Model Registration] 1 A PTFE bellows is airtightly joined between a seal ring and a rotating side or stationary side that supports this seal ring, and the fluid to be sealed is connected to the inner periphery of the seal ring sliding surface. In a mechanical seal existing in a space communicating with the side, a PTF characterized in that an annular reinforcing band is closely attached to the outer peripheral surface of each valley of the bellows-shaped main body portion of the PTFE bellows.
E bellows type mechanical seal. 2. The PTFE bellows type mechanical seal according to claim 1, characterized in that a garter spring is tightened on the outer peripheral surface of each valley of the bellows-shaped main body portion of the PTFE bellows in place of the annular reinforcing band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989121385U JPH071556Y2 (en) | 1989-10-17 | 1989-10-17 | PTFE bellows type mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989121385U JPH071556Y2 (en) | 1989-10-17 | 1989-10-17 | PTFE bellows type mechanical seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0360658U true JPH0360658U (en) | 1991-06-14 |
| JPH071556Y2 JPH071556Y2 (en) | 1995-01-18 |
Family
ID=31669419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989121385U Expired - Fee Related JPH071556Y2 (en) | 1989-10-17 | 1989-10-17 | PTFE bellows type mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH071556Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751277A (en) * | 2019-02-27 | 2019-05-14 | 沈阳北碳密封有限公司 | Self priming pump positive/negative-pressure operating condition mechanical seal |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5983255U (en) * | 1982-11-27 | 1984-06-05 | 日本ピラ−工業株式会社 | Fluororesin bellows type mechanical seal |
| JPS6075762U (en) * | 1983-10-31 | 1985-05-27 | イーグル工業株式会社 | Teflon bellows seal |
| JPS62220769A (en) * | 1986-03-18 | 1987-09-28 | Kiyousan Denki Kk | Bellows |
| JPS63225707A (en) * | 1987-03-13 | 1988-09-20 | Fuji Seiki Kk | Pneumatic actuator |
| JPS63308201A (en) * | 1987-06-09 | 1988-12-15 | Fuji Seiki Kk | Rodless cylinder |
-
1989
- 1989-10-17 JP JP1989121385U patent/JPH071556Y2/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5983255U (en) * | 1982-11-27 | 1984-06-05 | 日本ピラ−工業株式会社 | Fluororesin bellows type mechanical seal |
| JPS6075762U (en) * | 1983-10-31 | 1985-05-27 | イーグル工業株式会社 | Teflon bellows seal |
| JPS62220769A (en) * | 1986-03-18 | 1987-09-28 | Kiyousan Denki Kk | Bellows |
| JPS63225707A (en) * | 1987-03-13 | 1988-09-20 | Fuji Seiki Kk | Pneumatic actuator |
| JPS63308201A (en) * | 1987-06-09 | 1988-12-15 | Fuji Seiki Kk | Rodless cylinder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751277A (en) * | 2019-02-27 | 2019-05-14 | 沈阳北碳密封有限公司 | Self priming pump positive/negative-pressure operating condition mechanical seal |
| CN109751277B (en) * | 2019-02-27 | 2024-02-13 | 沈阳北碳密封有限公司 | Positive and negative pressure working condition mechanical seal for self-priming pump |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH071556Y2 (en) | 1995-01-18 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |