US3601497A - Wicket gate end seal for hydraulic machine - Google Patents
Wicket gate end seal for hydraulic machine Download PDFInfo
- Publication number
- US3601497A US3601497A US869038A US3601497DA US3601497A US 3601497 A US3601497 A US 3601497A US 869038 A US869038 A US 869038A US 3601497D A US3601497D A US 3601497DA US 3601497 A US3601497 A US 3601497A
- Authority
- US
- United States
- Prior art keywords
- gates
- seal
- wicket
- stationary
- groove
- 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 - Lifetime
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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
- F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
- F03B3/16—Stators
- F03B3/18—Stator blades; Guide conduits or vanes, e.g. adjustable
- F03B3/183—Adjustable vanes, e.g. wicket gates
-
- 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
Definitions
- Streich ABSTRACT A piston seal is slidably contained in a slot provided in the ends of the wicket gates. Means are provided to urge this piston seal into liquid sealing engagement with the adjacent hydraulic turbine stationary components. These means are preferably in the form of pressurized hydraulic fluid directed to the chamber behind the piston seal.
- WICKET GATE END SEAL FOR HYDRAULIC MACHINE This invention pertains in general to wicket gates for hydraulic turbines and more particularly to a means for providing a seal between the end surfaces of the wicket gates and the turbine head cover and bottom ring.
- a further object of the subject invention is to provide a seal means between the turbine stationary components and the ends of the wicket gates which includes a piston seal slidably contained in either the stationary component or wicket gate and which is urged by pressurized hydraulic fluid into sealing engagement with the opposite member.
- a further object of the subject invention is to provide a wicket gate end seal wherein a piston seal is slidably contained in a slot in the end of the wicket gates and is urged into sealing engagement with the stationary water passageway surfaces of the turbine head cover and bottom ring.
- FIG. 1 is a fragmentary horizontal sectional view showing I two wicket gates in the open position
- the wicket gates are pivotally supported at one or both ends to the concrete foundation by means of trunnions 8 and define an annulus about the turbine runner (not shown).
- Each wicket gate has a general air foil configuration having a leading edge 9 and a trailing edge 11. When in the closed position the leading edge of one wicket gate contacts the trailing edge of the adjacent wicket gate ef-.
- Annularstationary components 12, herein shown as sideplates, are providedin the concrete foundation adjacent opposite ends of the wicket gates.
- a stepped shoulder 13 is provided at each end of each wicket gate.
- a plate 14 is rigidly connected to the ends of wicket gates by any conventional means such as screws 16 covering the laterally open end of the shoulder.
- This plate 14 and the shoulder 13 define a slot 17 in the end of each wicket gate.
- a piston seal 18 is slidably contained in each slot.
- the seal is preferably constructed of a metallic substance such as stainless steel and extends from the trailing edge 11 around the leading edge 9 beyond the point of vertical contact between adjacent gates.
- the piston seal and the walls of the slot 17 define a pressure fluid chamber 19 therebetween.
- a pressure fluid supply pipe or conduit 21 is connected to a passageway provided in the wicket gate trunnions 8. This passageway 22 is connected in fluid communication with the pressure fluid chamber 19. Pressurized fluid can then be provided through the conduit 21 into the chamber 19 to urge the piston seal l8 into liquid sealing engagement with the sideplates 12. Because the trunnions pass through the sideplates when the wicket gates are rotated, a portion of the piston seal will be always engaged with the sideplates to ensure that the piston seal does not slip out of the slot 17.
- means providing a liquid seal between said stationary components and said gate ends comprising: walls defining a groove in at least one end of said gates from the leading to trailing edge thereof, said groove being open to the end and one face of said gates; a plate releasably connected to the face of said gates and overlying said groove,
- said plate and the walls of said groove defining a fluid chamber having one open end overlying the adjacent stationary component when the gates are in a closed position; said means including a seal piston slidably contained within said chamber and replacable when said plate is removed; and fluid conduit means in fluid communication with said chamber to direct pressure fluid thereto for urging said piston seal into liquid sealing engagement with one of the stationary components.
Abstract
Description
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US86903869A | 1969-10-24 | 1969-10-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3601497A true US3601497A (en) | 1971-08-24 |
Family
ID=25352815
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US869038A Expired - Lifetime US3601497A (en) | 1969-10-24 | 1969-10-24 | Wicket gate end seal for hydraulic machine |
Country Status (1)
Country | Link |
---|---|
US (1) | US3601497A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3743435A (en) * | 1971-09-03 | 1973-07-03 | Dominion Eng Works Ltd | Seal manufacture and assembly |
DE2840336A1 (en) * | 1977-09-19 | 1979-03-29 | Gen Electric | SEAL FOR A TURBINE NOZZLE WITH VARIABLE CROSS SECTION |
FR2413418A1 (en) * | 1978-10-09 | 1979-07-27 | Diamond Shamrock Corp | PTFE-reinforced fluoro-polymer ion-exchange membrane - for cells producing chlorine and highly conc. alkali hydroxide |
US4169692A (en) * | 1974-12-13 | 1979-10-02 | General Electric Company | Variable area turbine nozzle and means for sealing same |
US6402477B1 (en) * | 1996-03-28 | 2002-06-11 | Voith Siemens Hydro Power Generation, Inc. | Adjustable blade turbines |
US20060062665A1 (en) * | 2004-09-22 | 2006-03-23 | Hamilton Sundstrand | Variable area diffuser vane geometry |
WO2009088299A2 (en) * | 2008-01-08 | 2009-07-16 | Dynavec As | Method and device for sealing between a guide vane and a turbine housing |
EP2980365A1 (en) * | 2014-07-30 | 2016-02-03 | MTU Aero Engines GmbH | Guide vane for a gas turbine with sealing elements on the face sides |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2776107A (en) * | 1955-03-11 | 1957-01-01 | Baldwin Lima Hamilton Corp | Hydraulic machine with adjustable propeller blades sealed at their inner ends |
FR1317759A (en) * | 1961-05-09 | 1963-05-08 | ||
US3101926A (en) * | 1960-09-01 | 1963-08-27 | Garrett Corp | Variable area nozzle device |
JPS6471042A (en) * | 1987-09-09 | 1989-03-16 | Mitsubishi Electric Corp | Convergence device |
-
1969
- 1969-10-24 US US869038A patent/US3601497A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2776107A (en) * | 1955-03-11 | 1957-01-01 | Baldwin Lima Hamilton Corp | Hydraulic machine with adjustable propeller blades sealed at their inner ends |
US3101926A (en) * | 1960-09-01 | 1963-08-27 | Garrett Corp | Variable area nozzle device |
FR1317759A (en) * | 1961-05-09 | 1963-05-08 | ||
JPS6471042A (en) * | 1987-09-09 | 1989-03-16 | Mitsubishi Electric Corp | Convergence device |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3743435A (en) * | 1971-09-03 | 1973-07-03 | Dominion Eng Works Ltd | Seal manufacture and assembly |
US4169692A (en) * | 1974-12-13 | 1979-10-02 | General Electric Company | Variable area turbine nozzle and means for sealing same |
DE2840336A1 (en) * | 1977-09-19 | 1979-03-29 | Gen Electric | SEAL FOR A TURBINE NOZZLE WITH VARIABLE CROSS SECTION |
US4193738A (en) * | 1977-09-19 | 1980-03-18 | General Electric Company | Floating seal for a variable area turbine nozzle |
FR2413418A1 (en) * | 1978-10-09 | 1979-07-27 | Diamond Shamrock Corp | PTFE-reinforced fluoro-polymer ion-exchange membrane - for cells producing chlorine and highly conc. alkali hydroxide |
US6402477B1 (en) * | 1996-03-28 | 2002-06-11 | Voith Siemens Hydro Power Generation, Inc. | Adjustable blade turbines |
US20060062665A1 (en) * | 2004-09-22 | 2006-03-23 | Hamilton Sundstrand | Variable area diffuser vane geometry |
US7140839B2 (en) * | 2004-09-22 | 2006-11-28 | Hamilton Sundstrand | Variable area diffuser vane geometry |
WO2009088299A2 (en) * | 2008-01-08 | 2009-07-16 | Dynavec As | Method and device for sealing between a guide vane and a turbine housing |
WO2009088299A3 (en) * | 2008-01-08 | 2010-04-08 | Dynavec As | Method and device for sealing between a guide vane and a turbine housing |
NO329047B1 (en) * | 2008-01-08 | 2010-08-02 | Dynavec As | Device for sealing between a guide rail and a turbine housing |
EP2980365A1 (en) * | 2014-07-30 | 2016-02-03 | MTU Aero Engines GmbH | Guide vane for a gas turbine with sealing elements on the face sides |
US9932847B2 (en) | 2014-07-30 | 2018-04-03 | MTU Aero Engines AG | Guide blade for a gas turbine |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: CONNECTICUT NATIONAL BANK THE, A NATIONAL BANKING Free format text: SECURITY INTEREST;ASSIGNOR:ALLIS-CHALMERS CORPORATION A DE CORP.;REEL/FRAME:004149/0001 Effective date: 19830329 Owner name: WOODS KATHLEEN D., AS TRUSTEE Free format text: SECURITY INTEREST;ASSIGNOR:ALLIS-CHALMERS CORPORATION A DE CORP.;REEL/FRAME:004149/0001 Effective date: 19830329 |
|
AS | Assignment |
Owner name: ALLIS-CHALMERS HYDRO, INC., A DE CORP Free format text: ASSIGNMENT OF ASSIGNORS INTEREST. SUBJECT TO CONDITIONS RECITED;ASSIGNOR:ALLIS-CHALMERS CORPORATION;REEL/FRAME:004431/0128 Effective date: 19850626 |
|
AS | Assignment |
Owner name: VOITH HYDRO, INC., A CORP OF DE. Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ALLIS-CHALMERS HYDRO, INC.;REEL/FRAME:004683/0922 Effective date: 19860925 |
|
AS | Assignment |
Owner name: ALLIS-CHALMERS CORPORATION Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:CONNECTICUT NATIONAL BANK, THE;REEL/FRAME:004684/0746 Effective date: 19870325 |