JPS62101093U - - Google Patents
Info
- Publication number
- JPS62101093U JPS62101093U JP19343485U JP19343485U JPS62101093U JP S62101093 U JPS62101093 U JP S62101093U JP 19343485 U JP19343485 U JP 19343485U JP 19343485 U JP19343485 U JP 19343485U JP S62101093 U JPS62101093 U JP S62101093U
- Authority
- JP
- Japan
- Prior art keywords
- pressure area
- rotating body
- seal
- fluid
- rotating
- 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
- 239000012530 fluid Substances 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Non-Positive Displacement Air Blowers (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Description
第１図、第２図は本考案の実施例を示す縦断面
図であり、第３図は従来のねじシールを示す縦断
面図であり、第４図は第３図で回転軸をのぞいた
図である。
１……回転軸、２……ケーシング、３……高圧
部、４……低圧部、５……シール、６……ねじみ
ぞ部、７……ねじ山部、８……回転軸ねじみぞ部
、９……回転軸ねじ山部、１０……回転軸の回転
方向、１１〜１４……流れ方向、１５……シール
入口部、１６……シール出口部、１７……流れ方
向。
Figures 1 and 2 are longitudinal cross-sectional views showing an embodiment of the present invention, Figure 3 is a vertical cross-sectional view showing a conventional screw seal, and Figure 4 is the same view as in Figure 3, looking at the rotating shaft. It is a diagram. 1...Rotating shaft, 2...Casing, 3...High pressure part, 4...Low pressure part, 5...Seal, 6...Thread groove part, 7...Thread part, 8...Rotating shaft thread groove part , 9... Rotating shaft thread portion, 10... Rotating direction of the rotating shaft, 11-14... Flow direction, 15... Seal inlet portion, 16... Seal outlet portion, 17... Flow direction.
Claims (1)
圧部に向つて軸方向に階段的にシール内径及び回
転体の外径が小さくなり、１段ごとに静止側では
低圧部から高圧部に向つて回転体の回転方向に沿
つて進むように、及び、又は回転体には同方向に
向つて回転の逆方向に沿つて進むように段ごとに
ねじ形状が異なるねじみぞが設けられることを特
徴とする流体回転機械の非接触ねじシール。 In the seal part of a fluid rotating machine, the inner diameter of the seal and the outer diameter of the rotating body decrease stepwise in the axial direction from the high pressure area to the low pressure area, and with each step, the inner diameter of the seal and the outer diameter of the rotating body decrease from the low pressure area to the high pressure area on the stationary side. A fluid characterized in that a threaded groove having a different thread shape for each stage is provided so that the rotating body advances along the direction of rotation of the fluid, and/or that the rotating body advances in the same direction but in the opposite direction of rotation. Non-contact screw seals for rotating machinery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19343485U JPS62101093U (en) | 1985-12-18 | 1985-12-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19343485U JPS62101093U (en) | 1985-12-18 | 1985-12-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62101093U true JPS62101093U (en) | 1987-06-27 |
Family
ID=31149451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19343485U Pending JPS62101093U (en) | 1985-12-18 | 1985-12-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62101093U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4742886B2 (en) * | 2006-01-27 | 2011-08-10 | 株式会社島津製作所 | Rotating equipment |
| WO2015115300A1 (en) * | 2014-01-31 | 2015-08-06 | 株式会社荏原製作所 | Noncontact annular seal and rotating machine equipped with same |
| WO2017010146A1 (en) * | 2015-07-10 | 2017-01-19 | 株式会社荏原製作所 | Non-contact annular seal and rotary machine provided therewith |
-
1985
- 1985-12-18 JP JP19343485U patent/JPS62101093U/ja active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4742886B2 (en) * | 2006-01-27 | 2011-08-10 | 株式会社島津製作所 | Rotating equipment |
| WO2015115300A1 (en) * | 2014-01-31 | 2015-08-06 | 株式会社荏原製作所 | Noncontact annular seal and rotating machine equipped with same |
| JPWO2015115300A1 (en) * | 2014-01-31 | 2017-03-23 | 株式会社荏原製作所 | Non-contact annular seal and rotating machine equipped with the same |
| WO2017010146A1 (en) * | 2015-07-10 | 2017-01-19 | 株式会社荏原製作所 | Non-contact annular seal and rotary machine provided therewith |
| CN107850220A (en) * | 2015-07-10 | 2018-03-27 | 株式会社荏原制作所 | Non-contact annular seal and the rotating machinery for possessing the seal |