GB1226772A - - Google Patents
Info
- Publication number
- GB1226772A GB1226772A GB1226772DA GB1226772A GB 1226772 A GB1226772 A GB 1226772A GB 1226772D A GB1226772D A GB 1226772DA GB 1226772 A GB1226772 A GB 1226772A
- Authority
- GB
- United Kingdom
- Prior art keywords
- runner
- water
- parts
- sealing
- air
- 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.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
- F03B11/006—Sealing arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/16—Sealings between pressure and suction sides
- F04D29/165—Sealings between pressure and suction sides especially adapted for liquid pumps
- F04D29/167—Sealings between pressure and suction sides especially adapted for liquid pumps of a centrifugal flow wheel
-
- 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
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Hydraulic Turbines (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
1,226,772. 772. Hydraulic turbines - sealing devices. ESCHER WYSS Ltd. July 1, 1968 [July 3, 1967], No.31320/68. Heading F1T. [Also in Division F2] In an hydraulic rotary machine comprising a runner 1 which is sealed by a labyrinth seal and rotates sometimes in water and sometimes in air, e.g. a Francis turbine, a centrifugal pump or a reversible pump turbine, the parts forming the sealing gap are relatively movable whereby the gap is variable from a comparatively small amount when the runner is operating in water to an increased amount when the runner is operating in air. The runner 1 is sealed to the housing parts 4, 5 and 6, 7 by labyrinth seals 2 and 3 respectively and the non-rotating parts 10, 11 of the seals are connected by members 12 to servomotors 13 connected by ducts 21 and 22 to a fluid-pressure source. The position shown in Fig. 1 is intended for normal operation with the runner 1 rotating in water, the sealing gaps 8, 9 then being at a minimum limited by conical surfaces 23 o', the parts 10 and 11 pressed against conical surfaces 24 on the housing parts 4 and 6 by water pressure in annular chambers 25 communicating via ducts 26 with the water pressure space 27 of the machine. For operation of the runner in air, the parts 10 and 11 are moved outwardly by the servomotors 13 to increase the sealing gap 8, 9 by one step width as in Fig. 2 (not shown). During sliding movement of the parts 10 and 11, pressure water is supplied to the sealing gaps to act as coolant through ducts 28 leading from chambers 29 supplied from an external water source.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH943567A CH467941A (en) | 1967-07-03 | 1967-07-03 | Labyrinth seal on a hydraulic centrifugal machine, the rotor of which revolves at times in water and at times in air. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1226772A true GB1226772A (en) | 1971-03-31 |
Family
ID=4351955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1226772D Expired GB1226772A (en) | 1967-07-03 | 1968-07-01 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3516757A (en) |
| AT (1) | AT288285B (en) |
| CH (1) | CH467941A (en) |
| DE (1) | DE1750937A1 (en) |
| ES (1) | ES355708A1 (en) |
| FR (1) | FR1570899A (en) |
| GB (1) | GB1226772A (en) |
| IE (1) | IE32178B1 (en) |
| NO (1) | NO123276B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4335886A (en) * | 1980-07-22 | 1982-06-22 | Cornell Pump Company | Labyrinth seal with current-forming sealing passages |
| GB2159895A (en) * | 1984-06-04 | 1985-12-11 | Gen Electric | Stepped-tooth rotating labyrinth seal |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH598487A5 (en) * | 1975-12-02 | 1978-04-28 | Escher Wyss Ag | |
| US4131386A (en) * | 1977-05-05 | 1978-12-26 | Sundstrand Corporation | Sealing system for centrifugal pump |
| US4286919A (en) * | 1979-12-13 | 1981-09-01 | Hitachi, Ltd. | Apparatus for pumping operation of a hydraulic machine having Francis type runner |
| DE3022861C2 (en) * | 1980-06-19 | 1983-12-08 | M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 4200 Oberhausen | Turbo machine, in particular hot gas turbine, and method for automatic continuous influencing of the labyrinth seal clearance of the turbo machine |
| US4459082A (en) * | 1981-09-30 | 1984-07-10 | Sundstrand Corporation | Self-acting automatic clearance control apparatus for a turbine |
| US4465284A (en) * | 1983-09-19 | 1984-08-14 | General Electric Company | Scalloped cooling of gas turbine transition piece frame |
| DE3512641A1 (en) * | 1984-04-12 | 1985-10-24 | Kabushiki Kaisha Toshiba, Kawasaki, Kanagawa | Multi-stage, hydraulic machine |
| US4909706A (en) * | 1987-01-28 | 1990-03-20 | Union Carbide Corporation | Controlled clearance labyrinth seal |
| DE19540745A1 (en) * | 1995-11-02 | 1997-05-07 | Asea Brown Boveri | Compressor vane to shaft connection |
| US5975537A (en) * | 1997-07-01 | 1999-11-02 | General Electric Company | Rotor and stator assembly configured as an aspirating face seal |
| US6739829B2 (en) * | 2002-07-08 | 2004-05-25 | Giw Industries, Inc. | Self-compensating clearance seal for centrifugal pumps |
| NL1024985C2 (en) * | 2003-12-03 | 2005-09-08 | Giw Ind | Self-compensating clearance seal for centrifugal pumps. |
| JP4513432B2 (en) * | 2004-07-07 | 2010-07-28 | 株式会社日立プラントテクノロジー | Turbo fluid machine and stepped seal device used therefor |
| US7429160B2 (en) * | 2006-01-10 | 2008-09-30 | Weir Slurry Group, Inc. | Flexible floating ring seal arrangement for rotodynamic pumps |
| FR2925939A1 (en) * | 2007-12-28 | 2009-07-03 | Alstom Power Hydraulique Sa | HYDRAULIC MACHINE, ENERGY CONVERSION INSTALLATION COMPRISING SUCH A MACHINE AND METHOD OF ADJUSTING SUCH A MACHINE |
| CN101813101A (en) * | 2010-03-19 | 2010-08-25 | 江苏大学 | Anti-abrasion device of sealing opening ring of solid-liquid two-phase flow centrifugal pump |
| DE102011008869A1 (en) * | 2011-01-18 | 2012-07-19 | Voith Patent Gmbh | Hydro turbine or pump turbine or other hydraulic machine |
| DE102011107829A1 (en) * | 2011-07-01 | 2013-01-03 | Voith Patent Gmbh | Pump turbine plant |
| US20140030086A1 (en) * | 2012-07-26 | 2014-01-30 | GM Global Technology Operations LLC | Centrifugal pump |
| DE102014224283A1 (en) * | 2014-11-27 | 2016-06-02 | Robert Bosch Gmbh | Compressor with a sealing channel |
| US10823184B2 (en) * | 2016-07-28 | 2020-11-03 | General Electric Company | Engine with face seal |
| CN107762569B (en) * | 2016-08-19 | 2020-01-14 | 中国航发商用航空发动机有限责任公司 | Non-contact type labyrinth sealing structure, aircraft engine and gas turbine |
| DE102017007860A1 (en) | 2017-08-23 | 2019-02-28 | Wilo Se | Sealing at the suction mouth of a pump impeller |
| US10161411B1 (en) * | 2017-10-20 | 2018-12-25 | Halliburton Energy Services, Inc. | Centrifugal pump sealing surfaces |
| US10781709B2 (en) * | 2018-01-09 | 2020-09-22 | General Electric Company | Turbine engine with a seal |
| CN114033706A (en) * | 2021-11-17 | 2022-02-11 | 嘉利特荏原泵业有限公司 | Centrifugal pump |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR599264A (en) * | 1926-01-08 | |||
| US1823702A (en) * | 1928-05-24 | 1931-09-15 | Allis Chalmers Mfg Co | Hydraulic machine |
| FR1074886A (en) * | 1953-02-10 | 1954-10-11 | Neyrpic Ets | Turbine improvements |
| CH393091A (en) * | 1961-04-05 | 1965-05-31 | Sulzer Ag | Turbomachine that can be used alternately as a pump or turbine |
| US3174719A (en) * | 1962-06-12 | 1965-03-23 | Dominion Eng Works Ltd | Francis turbines and centrifugal pumps |
| US3330532A (en) * | 1966-03-23 | 1967-07-11 | Baldwin Lima Hamilton Corp | Thrust control means for hydraulic machines |
-
1967
- 1967-07-03 CH CH943567A patent/CH467941A/en unknown
-
1968
- 1968-06-18 FR FR1570899D patent/FR1570899A/fr not_active Expired
- 1968-06-20 DE DE19681750937 patent/DE1750937A1/en active Pending
- 1968-06-20 AT AT592268A patent/AT288285B/en active
- 1968-06-24 US US739335A patent/US3516757A/en not_active Expired - Lifetime
- 1968-07-01 IE IE778/68A patent/IE32178B1/en unknown
- 1968-07-01 GB GB1226772D patent/GB1226772A/en not_active Expired
- 1968-07-02 NO NO2643/68*[A patent/NO123276B/no unknown
- 1968-07-03 ES ES355708A patent/ES355708A1/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4335886A (en) * | 1980-07-22 | 1982-06-22 | Cornell Pump Company | Labyrinth seal with current-forming sealing passages |
| GB2159895A (en) * | 1984-06-04 | 1985-12-11 | Gen Electric | Stepped-tooth rotating labyrinth seal |
Also Published As
| Publication number | Publication date |
|---|---|
| NO123276B (en) | 1971-10-18 |
| FR1570899A (en) | 1969-06-13 |
| CH467941A (en) | 1969-01-31 |
| AT288285B (en) | 1971-02-25 |
| IE32178L (en) | 1969-01-03 |
| IE32178B1 (en) | 1973-05-02 |
| ES355708A1 (en) | 1970-03-01 |
| DE1750937A1 (en) | 1972-04-06 |
| US3516757A (en) | 1970-06-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |