EP1167696A3 - Labyrinth seal for a rotating shaft - Google Patents
Labyrinth seal for a rotating shaft Download PDFInfo
- Publication number
- EP1167696A3 EP1167696A3 EP01112342A EP01112342A EP1167696A3 EP 1167696 A3 EP1167696 A3 EP 1167696A3 EP 01112342 A EP01112342 A EP 01112342A EP 01112342 A EP01112342 A EP 01112342A EP 1167696 A3 EP1167696 A3 EP 1167696A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- grooves
- rotor
- labyrinth seal
- stator
- relief grooves
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Zwischen dem Rotor und Stator (1) einer axialen Strömungsmaschine befinden sich Dichtstreifen (2) einer Labyrinthdichtung, welche in Dichtstreifennuten (3) eingestemmt sind. Zwischen den Dichtstreifen (3) sind Entlastungsnuten (6) derart angeordnet, dass die axiale Steifigkeit des Rotors oder Stators (1) in wesentlichen stetig ist. Dies kann durch eine oder mehrere flache Entlastungsnuten (6), eine wellige Oberfläche oder durch teilweise oder ganze Füllung der Entlastungsnuten (6) mit einem geeigneten elastischen Material geschehen, so dass sich eine gleichmässigere axiale Spannungsverteilung zwischen den Dichtstreifennuten (3) und Entlastungsnuten (6) entlang des Rotor- bzw. Statorabschnitts ergibt. Between the rotor and stator (1) of an axial flow machine there are sealing strips (2) of a labyrinth seal, which are caulked into sealing strip grooves (3). Relief grooves (6) are arranged between the sealing strips (3) in such a way that the axial rigidity of the rotor or stator (1) is essentially constant. This can be done by one or more flat relief grooves (6), a wavy surface or by partially or completely filling the relief grooves (6) with a suitable elastic material, so that there is a more uniform axial stress distribution between the sealing strip grooves (3) and relief grooves (6 ) along the rotor or stator section.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10030820 | 2000-06-23 | ||
DE10030820A DE10030820A1 (en) | 2000-06-23 | 2000-06-23 | Labyrinth seal for a rotating shaft |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1167696A2 EP1167696A2 (en) | 2002-01-02 |
EP1167696A3 true EP1167696A3 (en) | 2003-11-12 |
EP1167696B1 EP1167696B1 (en) | 2004-12-15 |
Family
ID=7646669
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01112342A Expired - Lifetime EP1167696B1 (en) | 2000-06-23 | 2001-05-21 | Labyrinth seal for a rotating shaft |
Country Status (3)
Country | Link |
---|---|
US (1) | US6575693B2 (en) |
EP (1) | EP1167696B1 (en) |
DE (2) | DE10030820A1 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10205092A1 (en) * | 2002-02-07 | 2003-08-21 | Cft Gmbh | Jaw crusher with continuous drive shaft |
GB0308147D0 (en) * | 2003-04-09 | 2003-05-14 | Rolls Royce Plc | A seal |
US20070069477A1 (en) * | 2003-06-20 | 2007-03-29 | Elliott Company | Stepped labyrinth damper seal |
US20060267289A1 (en) * | 2003-06-20 | 2006-11-30 | Elliott Company | Hybrid abradable labyrinth damper seal |
US7806410B2 (en) | 2007-02-20 | 2010-10-05 | United Technologies Corporation | Damping device for a stationary labyrinth seal |
US8876484B2 (en) * | 2011-08-05 | 2014-11-04 | Hamilton Sundstrand Corporation | Turbine blade pocket pin stress relief |
US8967955B2 (en) * | 2011-09-26 | 2015-03-03 | Honeywell International Inc. | Turbocharger with variable nozzle having labyrinth seal for vanes |
ES2620486T3 (en) | 2013-10-08 | 2017-06-28 | MTU Aero Engines AG | Component and turbomachinery support |
DE202013012218U1 (en) | 2013-10-24 | 2015-09-21 | Man Diesel & Turbo Se | sealing system |
US9995161B2 (en) | 2014-11-12 | 2018-06-12 | Borgwarner Inc. | Modular turbocharger clearance seal |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE675124C (en) * | 1937-06-02 | 1939-04-29 | Aeg | Stuffing box for steam or gas turbines with high operating temperatures |
IT1063035B (en) * | 1975-05-09 | 1985-02-11 | Maschf Augsburg Nuernberg Ag | APPARATUS FOR REALIZING THE PROCEDURE TO ELEVATE THE DYNAMIC POWER LIMIT OF STEAM OR GAS TURBINES OR COMPRESSORS |
DE3523469A1 (en) | 1985-07-01 | 1987-01-08 | Bbc Brown Boveri & Cie | Contact-free controlled-gap seal for turbo-machines |
DE59609405D1 (en) | 1996-04-01 | 2002-08-08 | Alstom | Wall contour for an axial turbomachine |
EP0943784A1 (en) | 1998-03-19 | 1999-09-22 | Asea Brown Boveri AG | Contoured channel for an axial turbomachine |
EP0982475A1 (en) | 1998-08-28 | 2000-03-01 | Asea Brown Boveri AG | Axial flow turbomachine with shrouded blading |
US6168377B1 (en) * | 1999-01-27 | 2001-01-02 | General Electric Co. | Method and apparatus for eliminating thermal bowing of steam turbine rotors |
-
2000
- 2000-06-23 DE DE10030820A patent/DE10030820A1/en not_active Withdrawn
-
2001
- 2001-05-21 DE DE50104807T patent/DE50104807D1/en not_active Expired - Lifetime
- 2001-05-21 EP EP01112342A patent/EP1167696B1/en not_active Expired - Lifetime
- 2001-06-25 US US09/887,009 patent/US6575693B2/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
KARL SCHRÖDER: "Grosse Dampfkraftwerke, Bd 3 Die Kraftwerksausrüstung, Teil B Dampf- und Gasturbinen, Generatoren", 1968, SPRINGER VERLAG, BERLIN / HEIDELBERG / NEW YORK, XP009016858 * |
Also Published As
Publication number | Publication date |
---|---|
DE50104807D1 (en) | 2005-01-20 |
EP1167696A2 (en) | 2002-01-02 |
DE10030820A1 (en) | 2002-01-03 |
US20020006330A1 (en) | 2002-01-17 |
EP1167696B1 (en) | 2004-12-15 |
US6575693B2 (en) | 2003-06-10 |
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