GB998748A - Improvements in turbine shroud structure - Google Patents

Improvements in turbine shroud structure

Info

Publication number
GB998748A
GB998748A GB31565/63A GB3156563A GB998748A GB 998748 A GB998748 A GB 998748A GB 31565/63 A GB31565/63 A GB 31565/63A GB 3156563 A GB3156563 A GB 3156563A GB 998748 A GB998748 A GB 998748A
Authority
GB
United Kingdom
Prior art keywords
holder
shroud
casing
segments
engaging
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
GB31565/63A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB998748A publication Critical patent/GB998748A/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
    • 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
    • F01D25/26—Double casings; Measures against temperature strain in casings
    • 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
    • F05D2230/00—Manufacture
    • F05D2230/60—Assembly methods
    • F05D2230/64—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins
    • F05D2230/642—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins using maintaining alignment while permitting differential dilatation
    • 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

Landscapes

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

Abstract

998,748. Gas turbines. GENERAL ELECTRIC CO. Aug. 9, 1963 [Aug. 13, 1962], No. 31565/63. Headings FIG and FIT. A turbine has a split stator casing containing and supporting coaxially therein a continuous annular rotor blade shroud holder with freedom for expansion relative thereto, arcuate shroud segments being supported end to end around the inner periphery of the holder. An axially split gas turbine casing 1, Fig. 1, comprises upper and lower halves 2, 3 surrounding a continuous shroud holder 11 and a bladed rotor disc 8. Holder 11, Fig. 2, is of channel section having limbs 20 engaging an annular flange 13 on casing 1 and is supported concentrically therewith by projections 14, 15, Fig. 1, attached to casing 1 and engaging rollers 19 on the holder. Holder 11 carries shroud segments 12 each of which has corner lips 27 engaging in circumferential grooves 24 in the holder. Radial notches 32, Fig. 4, in holder 11 facilitate assembly of shroud segments 12 and screws 33 prevent circumferential movement. Heat insulating pads 28 are positioned between holder 11 and segments 12. The holder may be cooled by compressor air fed from a manifold 22 and exhausting through a duct 20a. The construction permits radial expansion or contraction of the shroud assembly and thus reduces thermal distortion.
GB31565/63A 1962-08-13 1963-08-09 Improvements in turbine shroud structure Expired GB998748A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US216443A US3141651A (en) 1962-08-13 1962-08-13 Turbine shroud structure

Publications (1)

Publication Number Publication Date
GB998748A true GB998748A (en) 1965-07-21

Family

ID=22807077

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31565/63A Expired GB998748A (en) 1962-08-13 1963-08-09 Improvements in turbine shroud structure

Country Status (5)

Country Link
US (1) US3141651A (en)
CH (1) CH426887A (en)
DE (1) DE1426804A1 (en)
GB (1) GB998748A (en)
NL (1) NL296573A (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1278180B (en) * 1964-09-24 1968-09-19 English Electric Co Ltd Gas turbine plant, e.g. B. to drive an alternator
US3498727A (en) * 1968-01-24 1970-03-03 Westinghouse Electric Corp Blade ring support
CH499012A (en) * 1968-12-03 1970-11-15 Siemens Ag Arrangement for the axially fixed and radially movable mounting of turbine housing parts
US4019320A (en) * 1975-12-05 1977-04-26 United Technologies Corporation External gas turbine engine cooling for clearance control
US4069662A (en) * 1975-12-05 1978-01-24 United Technologies Corporation Clearance control for gas turbine engine
US4251185A (en) * 1978-05-01 1981-02-17 Caterpillar Tractor Co. Expansion control ring for a turbine shroud assembly
DE4309199A1 (en) * 1993-03-22 1994-09-29 Abb Management Ag Device for the fixing of heat accumulation segments and stator blades in axial flow turbines
US6877952B2 (en) * 2002-09-09 2005-04-12 Florida Turbine Technologies, Inc Passive clearance control
US7686575B2 (en) * 2006-08-17 2010-03-30 Siemens Energy, Inc. Inner ring with independent thermal expansion for mounting gas turbine flow path components
US7852092B2 (en) 2008-03-25 2010-12-14 General Electric Company Systems for inspection of shrouds
US8231338B2 (en) 2009-05-05 2012-07-31 General Electric Company Turbine shell with pin support
EP2706199B1 (en) * 2012-09-10 2018-12-12 Ansaldo Energia Switzerland AG Method and guide for removing an inner casing from a turbomachine
US10233776B2 (en) 2013-05-21 2019-03-19 Siemens Energy, Inc. Gas turbine ring segment cooling apparatus
CN104819017B (en) * 2015-03-09 2016-09-28 章礼道 A kind of encapsulating method of novel mesolow cylinder split
EP3284919B1 (en) * 2016-08-16 2024-09-25 General Electric Technology GmbH Axial flow turbine having a diaphragm split in two halves at a joint plane
US10900378B2 (en) * 2017-06-16 2021-01-26 Honeywell International Inc. Turbine tip shroud assembly with plural shroud segments having internal cooling passages
KR101958110B1 (en) * 2017-09-20 2019-03-13 두산중공업 주식회사 Turbine stator, turbine and gas turbine comprising the same
US11073033B2 (en) 2018-10-18 2021-07-27 Honeywell International Inc. Stator attachment system for gas turbine engine
US11346252B2 (en) * 2019-07-01 2022-05-31 Raytheon Technologies Corporation Multi-purpose anti-rotation lock pin

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR981975A (en) * 1943-05-21 1951-06-01 Rateau Soc Further training in gas turbines
FR994013A (en) * 1944-12-05 1951-11-09 Rateau Soc Improvement in the execution of distributors and turbine nozzles
US2888240A (en) * 1956-03-07 1959-05-26 Allis Chalmers Mfg Co Fluid cooled barrel cylinder for turbines

Also Published As

Publication number Publication date
DE1426804A1 (en) 1969-03-20
CH426887A (en) 1966-12-31
NL296573A (en)
US3141651A (en) 1964-07-21

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