JPS6483891A - Labyrinth sealing device for hydraulic machine - Google Patents
Labyrinth sealing device for hydraulic machineInfo
- Publication number
- JPS6483891A JPS6483891A JP62240735A JP24073587A JPS6483891A JP S6483891 A JPS6483891 A JP S6483891A JP 62240735 A JP62240735 A JP 62240735A JP 24073587 A JP24073587 A JP 24073587A JP S6483891 A JPS6483891 A JP S6483891A
- Authority
- JP
- Japan
- Prior art keywords
- labyrinth
- act
- spring
- making
- time
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Hydraulic Turbines (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
PURPOSE:To reduce the leak loss of a labyrinth seal part at the time of slow revolution with a simple and inexpensive structure by supporting a labyrinth on a diaphragm free of slide motion, and making energizing force of the spring and fluid pressure both act on the labyrinth. CONSTITUTION:A labyrinth 9' is supported on a guide groove 15 installed in a diaphragm 5' free of slide motion in the radial direction, while a spring is interposed between them. A pocket 12, making this labyrinth 9' act in its contraction direction, is interconnected to the low pressure side by a drill hole 10. In addition, a pocket 13, making the labyrinth 9' act in its expanding direction, is interconnected to the high pressure side by a drill hole 11. At the time of high speed of an impeller 3 tightly attached to a turning shaft 2, the labyrinth 9' is expanded wide and a proper clearance size 12 to the impeller 3 is maintained. On the other hand, at the time of low speed, the labyrinth 9' is contacted by the spring 14, and the proper clearance size 12 is maintained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62240735A JPS6483891A (en) | 1987-09-28 | 1987-09-28 | Labyrinth sealing device for hydraulic machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62240735A JPS6483891A (en) | 1987-09-28 | 1987-09-28 | Labyrinth sealing device for hydraulic machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6483891A true JPS6483891A (en) | 1989-03-29 |
Family
ID=17063920
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62240735A Pending JPS6483891A (en) | 1987-09-28 | 1987-09-28 | Labyrinth sealing device for hydraulic machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6483891A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011058481A (en) * | 2009-09-14 | 2011-03-24 | Toshiba Corp | Seal structure of hydraulic machine, and hydraulic machine equipped with the same |
JP2014521861A (en) * | 2011-07-26 | 2014-08-28 | ヌオーヴォ ピニォーネ ソシエタ ペル アチオニ | Centrifugal impeller and turbomachine |
-
1987
- 1987-09-28 JP JP62240735A patent/JPS6483891A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011058481A (en) * | 2009-09-14 | 2011-03-24 | Toshiba Corp | Seal structure of hydraulic machine, and hydraulic machine equipped with the same |
JP2014521861A (en) * | 2011-07-26 | 2014-08-28 | ヌオーヴォ ピニォーネ ソシエタ ペル アチオニ | Centrifugal impeller and turbomachine |
US9567864B2 (en) | 2011-07-26 | 2017-02-14 | Nuovo Pignone Spa | Centrifugal impeller and turbomachine |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BR8304117A (en) | ROTATING OPERATING DEVICE WITH FLUID TO PROCESS A SERVICE FLUID BETWEEN HIGH PRESSURE AND LOW PRESSURE | |
SE8704144L (en) | GUEST SEALING DEVICE FOR AN AXLE | |
FR2635565B1 (en) | DYNAMIC PRESSURE TYPE FLUID BEARING MECHANISM | |
SE8207330D0 (en) | DEVICE WITH FORCED FLOW WORKING MACHINE | |
ATE66291T1 (en) | COMPOSITE DRALL OIL SEAL. | |
IE821909L (en) | Drilling device | |
KR910008288A (en) | Scroll compressor with dual pocket axial compliance | |
ATE42997T1 (en) | HIGH PRESSURE SEAL. | |
GB1496668A (en) | Seal assemblies | |
SE8601558D0 (en) | MECHANICAL SEAL | |
SE8505316D0 (en) | GLIDRINGSTETNING | |
ES8503403A1 (en) | Cylindrical rotary valve with seal for piston engines. | |
EP0156096A3 (en) | Shaft seal | |
GB1451634A (en) | Frictionless sealing device operated by pressure medium | |
JPS6483891A (en) | Labyrinth sealing device for hydraulic machine | |
ES456133A1 (en) | Device for temporarily sealing and supporting shafts | |
JPS57154562A (en) | Floating seal | |
ATE42226T1 (en) | DEVICE FOR HYDRAULIC EXPANSION OF PIPE SECTIONS. | |
SE7514684L (en) | SHAFT STIFFNESS CONTROL DEVICE. | |
ES8607486A1 (en) | Microleaks intercepting apparatus for avoiding and/or signalling oil leakages in hydraulic plants and for equivalent uses. | |
FR2362318A1 (en) | Rotary shaft end face seal - has annular mating faces with controlled lubrication fluid flow between | |
FR2454569A1 (en) | Joint to seal rotating part in fixed one - has deformable pocket filled with incompressible liquid acting on it by centrifugal force | |
ATE11592T1 (en) | DOUBLE SEAL WITH REDUCED POWER CONSUMPTION. | |
JPS56138567A (en) | Mechanical seal | |
DE3174226D1 (en) | Cutting device |