EP2055900A3 - Feather seal and gas turbine engine system involving such seals - Google Patents

Feather seal and gas turbine engine system involving such seals Download PDF

Info

Publication number
EP2055900A3
EP2055900A3 EP08253503A EP08253503A EP2055900A3 EP 2055900 A3 EP2055900 A3 EP 2055900A3 EP 08253503 A EP08253503 A EP 08253503A EP 08253503 A EP08253503 A EP 08253503A EP 2055900 A3 EP2055900 A3 EP 2055900A3
Authority
EP
European Patent Office
Prior art keywords
gas turbine
turbine engine
seals
feather
engine system
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.)
Withdrawn
Application number
EP08253503A
Other languages
German (de)
French (fr)
Other versions
EP2055900A2 (en
Inventor
Susan M. Tholen
Ralph J. Thompson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Raytheon Technologies Corp
Original Assignee
United Technologies Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by United Technologies Corp filed Critical United Technologies Corp
Publication of EP2055900A2 publication Critical patent/EP2055900A2/en
Publication of EP2055900A3 publication Critical patent/EP2055900A3/en
Withdrawn legal-status Critical Current

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
    • F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/10—Stators
    • F05D2240/11—Shroud seal segments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/55—Seals
    • F05D2240/57—Leaf seals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/70—Shape

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gasket Seals (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

Feather seals (250) and gas turbine engine systems involving such seals (250) are provided. In this regard, a representative feather seal (250) for a gas turbine engine includes: an elongate body portion (254); and a locating tab (256) extending longitudinally along the body portion (254) and extending outwardly therefrom. The tab (256) locates between adjacent outer air seal segments (240,242). A gas turbine engine (100) comprising an outer air seal assembly (124) having such a feather seal (250) is also provided.
EP08253503A 2007-10-29 2008-10-28 Feather seal and gas turbine engine system involving such seals Withdrawn EP2055900A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/926,272 US20090110546A1 (en) 2007-10-29 2007-10-29 Feather Seals and Gas Turbine Engine Systems Involving Such Seals

Publications (2)

Publication Number Publication Date
EP2055900A2 EP2055900A2 (en) 2009-05-06
EP2055900A3 true EP2055900A3 (en) 2012-02-29

Family

ID=40202191

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08253503A Withdrawn EP2055900A3 (en) 2007-10-29 2008-10-28 Feather seal and gas turbine engine system involving such seals

Country Status (2)

Country Link
US (1) US20090110546A1 (en)
EP (1) EP2055900A3 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8979486B2 (en) 2012-01-10 2015-03-17 United Technologies Corporation Intersegment spring “T” seal
US9255524B2 (en) * 2012-12-20 2016-02-09 United Technologies Corporation Variable outer air seal fluid control
US9719427B2 (en) * 2014-01-21 2017-08-01 Solar Turbines Incorporated Turbine blade platform seal assembly validation
US9915159B2 (en) 2014-12-18 2018-03-13 General Electric Company Ceramic matrix composite nozzle mounted with a strut and concepts thereof
US9759079B2 (en) 2015-05-28 2017-09-12 Rolls-Royce Corporation Split line flow path seals
US10161257B2 (en) 2015-10-20 2018-12-25 General Electric Company Turbine slotted arcuate leaf seal
US10697314B2 (en) 2016-10-14 2020-06-30 Rolls-Royce Corporation Turbine shroud with I-beam construction
US10557365B2 (en) 2017-10-05 2020-02-11 Rolls-Royce Corporation Ceramic matrix composite blade track with mounting system having reaction load distribution features
US10718226B2 (en) 2017-11-21 2020-07-21 Rolls-Royce Corporation Ceramic matrix composite component assembly and seal
US10961861B2 (en) 2018-08-06 2021-03-30 Raytheon Technologies Corporation Structural support for blade outer air seal assembly
US20200095880A1 (en) * 2018-09-24 2020-03-26 United Technologies Corporation Featherseal formed of cmc materials
US11319827B2 (en) * 2019-04-01 2022-05-03 Raytheon Technologies Corporation Intersegment seal for blade outer air seal
US11156116B2 (en) 2019-04-08 2021-10-26 Honeywell International Inc. Turbine nozzle with reduced leakage feather seals
US11078802B2 (en) * 2019-05-10 2021-08-03 Rolls-Royce Plc Turbine engine assembly with ceramic matrix composite components and end face seals
US11255209B2 (en) * 2019-08-29 2022-02-22 Raytheon Technologies Corporation CMC BOAS arrangement
US11149563B2 (en) 2019-10-04 2021-10-19 Rolls-Royce Corporation Ceramic matrix composite blade track with mounting system having axial reaction load distribution features
US11802487B1 (en) * 2022-08-15 2023-10-31 Rtx Corporation Gas turbine engine stator vane formed of ceramic matrix composites and having attachment flanges

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1221539A2 (en) * 2001-01-09 2002-07-10 Mitsubishi Heavy Industries, Ltd. Sealing for shrouds of a gas turbine
EP1431518A2 (en) * 2002-12-20 2004-06-23 General Electric Company Turbine engine shroud segment assembly with a surface-recessed seal bridging adjacent shroud segments
US20050082768A1 (en) * 2003-09-02 2005-04-21 Eagle Engineering Aerospace Co., Ltd. Seal device
US20050135925A1 (en) * 2001-07-11 2005-06-23 Mitsubishi Heavy Industries Ltd Gas turbine stationary blade
EP1783328A2 (en) * 2005-11-03 2007-05-09 General Electric Company Damper seal system and method

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5056988A (en) * 1990-02-12 1991-10-15 General Electric Company Blade tip clearance control apparatus using shroud segment position modulation
US5221096A (en) * 1990-10-19 1993-06-22 Allied-Signal Inc. Stator and multiple piece seal
US5154577A (en) * 1991-01-17 1992-10-13 General Electric Company Flexible three-piece seal assembly
DE4215440A1 (en) * 1992-05-11 1993-11-18 Mtu Muenchen Gmbh Device for sealing components, especially in turbomachinery
US5318402A (en) * 1992-09-21 1994-06-07 General Electric Company Compressor liner spacing device
US5320486A (en) * 1993-01-21 1994-06-14 General Electric Company Apparatus for positioning compressor liner segments
US5374161A (en) * 1993-12-13 1994-12-20 United Technologies Corporation Blade outer air seal cooling enhanced with inter-segment film slot
US5609469A (en) * 1995-11-22 1997-03-11 United Technologies Corporation Rotor assembly shroud
US5827047A (en) * 1996-06-27 1998-10-27 United Technologies Corporation Turbine blade damper and seal
US6315298B1 (en) * 1999-11-22 2001-11-13 United Technologies Corporation Turbine disk and blade assembly seal
EP1130218A1 (en) * 2000-03-02 2001-09-05 Siemens Aktiengesellschaft Turbine with sealings for the stator platforms
US6402466B1 (en) * 2000-05-16 2002-06-11 General Electric Company Leaf seal for gas turbine stator shrouds and a nozzle band
GB0108398D0 (en) * 2001-04-04 2001-05-23 Siemens Ag Seal element for sealing a gap and combustion turbine having a seal element
EP1371814A1 (en) * 2002-06-11 2003-12-17 ALSTOM (Switzerland) Ltd Sealing arrangement for a rotor of a turbomachine
GB2401658B (en) * 2003-05-16 2006-07-26 Rolls Royce Plc Sealing arrangement
US7063503B2 (en) * 2004-04-15 2006-06-20 Pratt & Whitney Canada Corp. Turbine shroud cooling system
US7186079B2 (en) * 2004-11-10 2007-03-06 United Technologies Corporation Turbine engine disk spacers
US7217089B2 (en) * 2005-01-14 2007-05-15 Pratt & Whitney Canada Corp. Gas turbine engine shroud sealing arrangement

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1221539A2 (en) * 2001-01-09 2002-07-10 Mitsubishi Heavy Industries, Ltd. Sealing for shrouds of a gas turbine
US20050135925A1 (en) * 2001-07-11 2005-06-23 Mitsubishi Heavy Industries Ltd Gas turbine stationary blade
EP1431518A2 (en) * 2002-12-20 2004-06-23 General Electric Company Turbine engine shroud segment assembly with a surface-recessed seal bridging adjacent shroud segments
US20050082768A1 (en) * 2003-09-02 2005-04-21 Eagle Engineering Aerospace Co., Ltd. Seal device
EP1783328A2 (en) * 2005-11-03 2007-05-09 General Electric Company Damper seal system and method

Also Published As

Publication number Publication date
US20090110546A1 (en) 2009-04-30
EP2055900A2 (en) 2009-05-06

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