JPS5590759A - Sealing apparatus for shaft of hydraulic machine - Google Patents
Sealing apparatus for shaft of hydraulic machineInfo
- Publication number
- JPS5590759A JPS5590759A JP16185878A JP16185878A JPS5590759A JP S5590759 A JPS5590759 A JP S5590759A JP 16185878 A JP16185878 A JP 16185878A JP 16185878 A JP16185878 A JP 16185878A JP S5590759 A JPS5590759 A JP S5590759A
- Authority
- JP
- Japan
- Prior art keywords
- runner
- point
- sealing apparatus
- chamber
- flow passage
- 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
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Sealing Devices (AREA)
Abstract
PURPOSE: To prevent the leakage of compressed air from a runner chamber at the time of operation to push down the water surface by providing a circular inclined passage on the shaft sealing apparatus and minimizing a difference between pressures forward and backward of the shaft sealing apparatus.
CONSTITUTION: A part of pressure water supplied to point "A" between packing 8 and shaft sleeve 9 through pressure water supply passage 12, and runs downward along the shaft sleeve 9. After flowing down to inlet point "B" on the inner circumferential surface 13a of shaftsealing disk 13, the said part of pressure water runs out towards outside in a radial direction along circular inclined flow passage 15, reaching outlet point "C". Then it flows into the back pressure chamber 13 of runner 1. During the flow from the inlet point "B" to outlet point "C" of inclined flow passage 15, the pressure increases under viscosity centrifugal action and is maintained at higher level than that of water or air in the runner back pressure chamber 13. Therefore, the leakage of compressed air blown into the runner chamber to the outside through the inclined flow passage 15 can be prevented.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16185878A JPS5590759A (en) | 1978-12-28 | 1978-12-28 | Sealing apparatus for shaft of hydraulic machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16185878A JPS5590759A (en) | 1978-12-28 | 1978-12-28 | Sealing apparatus for shaft of hydraulic machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5590759A true JPS5590759A (en) | 1980-07-09 |
Family
ID=15743286
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16185878A Pending JPS5590759A (en) | 1978-12-28 | 1978-12-28 | Sealing apparatus for shaft of hydraulic machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5590759A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6431261U (en) * | 1987-08-20 | 1989-02-27 |
-
1978
- 1978-12-28 JP JP16185878A patent/JPS5590759A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6431261U (en) * | 1987-08-20 | 1989-02-27 |
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