GB1306575A - Segmented seal assembly for axial flow turbines - Google Patents

Segmented seal assembly for axial flow turbines

Info

Publication number
GB1306575A
GB1306575A GB1752571A GB1752571A GB1306575A GB 1306575 A GB1306575 A GB 1306575A GB 1752571 A GB1752571 A GB 1752571A GB 1752571 A GB1752571 A GB 1752571A GB 1306575 A GB1306575 A GB 1306575A
Authority
GB
United Kingdom
Prior art keywords
axial flow
segment
shrouding
support ring
stator vane
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
Application number
GB1752571A
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.)
CBS Corp
Original Assignee
Westinghouse Electric 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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of GB1306575A publication Critical patent/GB1306575A/en
Expired 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
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
    • F01D25/246—Fastening of diaphragms or stator-rings
    • 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
    • F01D11/12—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator using a rubstrip, e.g. erodible. deformable or resiliently-biased part
    • F01D11/127—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator using a rubstrip, e.g. erodible. deformable or resiliently-biased part with a deformable or crushable structure, e.g. honeycomb

Landscapes

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

Abstract

1306575 Turbine shrouding WESTINGHOUSE ELECTRIC CORP 27 May 1971 [2 July 1970] 17525/71 Heading FIT The stationary shrouding surrounding the tips of axial flow gas turbine rotor blades 14 comprises segments 22, each consisting of axially and radially extending portions 23, 24 connected by a bracing member 25. The latter has an opening 33 to permit access to a bolt 32 securing the segment to a stator vane support ring 13. Sealing strips 27, 28 bridge the gaps between adjacent segments 22. A honeycomb lining 30 is provided on portions 23. The arrangement shown is for the last stage of a multistage turbine, but in a modification Fig. 4 (not shown), for an intermediate stage a segmental O-ring seal (36) is provided between a radially outwardly extending flange (37) at the downstream end of each segment 22 and the surrounding stator vane support ring 13.
GB1752571A 1970-07-02 1971-05-27 Segmented seal assembly for axial flow turbines Expired GB1306575A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US5197070A 1970-07-02 1970-07-02

Publications (1)

Publication Number Publication Date
GB1306575A true GB1306575A (en) 1973-02-14

Family

ID=21974553

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1752571A Expired GB1306575A (en) 1970-07-02 1971-05-27 Segmented seal assembly for axial flow turbines

Country Status (8)

Country Link
US (1) US3656862A (en)
JP (1) JPS5020201B1 (en)
BE (1) BE769254A (en)
CH (1) CH541066A (en)
DE (1) DE2131855A1 (en)
FR (1) FR2103007A5 (en)
GB (1) GB1306575A (en)
NL (1) NL7109117A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110284929A (en) * 2019-07-19 2019-09-27 中国航发沈阳发动机研究所 A kind of turbine casing seal structure

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3756741A (en) * 1971-12-17 1973-09-04 Jacuzzi Bros Inc Jet propulsion pump assembly
US3981609A (en) * 1975-06-02 1976-09-21 United Technologies Corporation Coolable blade tip shroud
GB1501916A (en) * 1975-06-20 1978-02-22 Rolls Royce Matching thermal expansions of components of turbo-machines
FR2401310A1 (en) * 1977-08-26 1979-03-23 Snecma REACTION ENGINE TURBINE CASE
US4346904A (en) * 1980-11-26 1982-08-31 Watkins Jr Shelton Honeycomb structure for use in abradable seals
US4643638A (en) * 1983-12-21 1987-02-17 United Technologies Corporation Stator structure for supporting an outer air seal in a gas turbine engine
US4553901A (en) * 1983-12-21 1985-11-19 United Technologies Corporation Stator structure for a gas turbine engine
US4687412A (en) * 1985-07-03 1987-08-18 Pratt & Whitney Canada Inc. Impeller shroud
GB2226365B (en) * 1988-12-22 1993-03-10 Rolls Royce Plc Turbomachine clearance control
US5001483A (en) * 1989-10-23 1991-03-19 Westinghouse Electric Corp. Digital to analog converter for an acoustic charge transport device
US5195868A (en) * 1991-07-09 1993-03-23 General Electric Company Heat shield for a compressor/stator structure
US5238365A (en) * 1991-07-09 1993-08-24 General Electric Company Assembly for thermal shielding of low pressure turbine
US5165848A (en) * 1991-07-09 1992-11-24 General Electric Company Vane liner with axially positioned heat shields
US5176495A (en) * 1991-07-09 1993-01-05 General Electric Company Thermal shielding apparatus or radiositor for a gas turbine engine
US5174714A (en) * 1991-07-09 1992-12-29 General Electric Company Heat shield mechanism for turbine engines
WO1994008143A1 (en) * 1992-10-07 1994-04-14 University Of Alabama At Birmingham Inlet clearance gap seal
US5524846A (en) * 1993-12-21 1996-06-11 The Boeing Company Fire protection system for airplanes
US6382905B1 (en) * 2000-04-28 2002-05-07 General Electric Company Fan casing liner support
GB2382380A (en) * 2001-11-24 2003-05-28 Rolls Royce Plc A removable abradable lining for the casing assembly of a gas turbine engine
US6682298B2 (en) 2002-05-17 2004-01-27 David George Demontmorency Rotating shaft confinement system
FR2859002A1 (en) * 2003-08-18 2005-02-25 Snecma Moteurs Abradable surface for gas turbine engine housing surrounding fan, is made from a resin with glass balls over a layer of thermoformable foam
US20050200080A1 (en) * 2004-03-10 2005-09-15 Siemens Westinghouse Power Corporation Seal for a turbine engine
US20070065277A1 (en) * 2005-09-19 2007-03-22 Ingersoll-Rand Company Centrifugal compressor including a seal system
US20070063449A1 (en) * 2005-09-19 2007-03-22 Ingersoll-Rand Company Stationary seal ring for a centrifugal compressor
EP1957800B1 (en) * 2005-09-19 2010-12-29 Ingersoll Rand Company Impeller for a centrifugal compressor
US20080063508A1 (en) * 2006-09-08 2008-03-13 Barry Barnett Fan case abradable
US8998565B2 (en) * 2011-04-18 2015-04-07 General Electric Company Apparatus to seal with a turbine blade stage in a gas turbine
EP2719869A1 (en) * 2012-10-12 2014-04-16 MTU Aero Engines GmbH Axial sealing in a housing structure for a turbomachine
EP2796667B1 (en) * 2013-04-24 2018-06-27 MTU Aero Engines AG Slip ring seal
EP2835500A1 (en) 2013-08-09 2015-02-11 Siemens Aktiengesellschaft Insert element and gas turbine
EP2853685A1 (en) * 2013-09-25 2015-04-01 Siemens Aktiengesellschaft Insert element and gas turbine
US10167727B2 (en) * 2014-08-13 2019-01-01 United Technologies Corporation Gas turbine engine blade containment system
EP3228826B1 (en) * 2016-04-05 2021-03-17 MTU Aero Engines GmbH Seal segment arrangement having a connector, corresponding gas turbine engine and method of manufacturing
DE102019110671A1 (en) * 2019-04-25 2020-10-29 Man Energy Solutions Se turbocharger

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA611004A (en) * 1960-12-20 S. Broffitt Wilgus Turbine nozzle
US3126149A (en) * 1964-03-24 Foamed aluminum honeycomb motor
US2994472A (en) * 1958-12-29 1961-08-01 Gen Electric Tip clearance control system for turbomachines
US3056583A (en) * 1960-11-10 1962-10-02 Gen Electric Retaining means for turbine shrouds and nozzle diaphragms of turbine engines
CH397360A (en) * 1961-11-28 1965-08-15 Licentia Gmbh Rotor seal with radially movable sealing ring segments, especially for turbo machines
US3314648A (en) * 1961-12-19 1967-04-18 Gen Electric Stator vane assembly
US3227418A (en) * 1963-11-04 1966-01-04 Gen Electric Variable clearance seal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110284929A (en) * 2019-07-19 2019-09-27 中国航发沈阳发动机研究所 A kind of turbine casing seal structure

Also Published As

Publication number Publication date
BE769254A (en) 1971-12-29
US3656862A (en) 1972-04-18
FR2103007A5 (en) 1972-04-07
DE2131855A1 (en) 1972-01-05
CH541066A (en) 1973-08-31
NL7109117A (en) 1972-01-04
JPS5020201B1 (en) 1975-07-12

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee