EP1126136A3 - Turbine blade with air cooled tip shroud - Google Patents

Turbine blade with air cooled tip shroud Download PDF

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Publication number
EP1126136A3
EP1126136A3 EP00810966A EP00810966A EP1126136A3 EP 1126136 A3 EP1126136 A3 EP 1126136A3 EP 00810966 A EP00810966 A EP 00810966A EP 00810966 A EP00810966 A EP 00810966A EP 1126136 A3 EP1126136 A3 EP 1126136A3
Authority
EP
European Patent Office
Prior art keywords
turbine blade
air cooled
blade
shroud element
tip shroud
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
Application number
EP00810966A
Other languages
German (de)
French (fr)
Other versions
EP1126136A2 (en
EP1126136B1 (en
Inventor
Ibrahim Dr. El-Nashar
Hartmut Haehnle
Rudolf Kellerer
Beat Von Arx
Bernhard Prof.Dr. Weigand
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 Technology GmbH
Original Assignee
Alstom Technology AG
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 Alstom Technology AG filed Critical Alstom Technology AG
Publication of EP1126136A2 publication Critical patent/EP1126136A2/en
Publication of EP1126136A3 publication Critical patent/EP1126136A3/en
Application granted granted Critical
Publication of EP1126136B1 publication Critical patent/EP1126136B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/18—Hollow blades, i.e. blades with cooling or heating channels or cavities; Heating, heat-insulating or cooling means on blades
    • F01D5/187—Convection cooling
    • 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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/22—Blade-to-blade connections, e.g. for damping vibrations
    • F01D5/225—Blade-to-blade connections, e.g. for damping vibrations by shrouding
    • 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
    • F05D2240/80—Platforms for stationary or moving blades
    • F05D2240/81—Cooled platforms
    • 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
    • F05D2250/10—Two-dimensional
    • F05D2250/14—Two-dimensional elliptical
    • F05D2250/141—Two-dimensional elliptical circular

Landscapes

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

Abstract

Luftgekühlte Turbinenschaufel (10), welche an der Schaufelspitze ein sich quer zur Schaufellängsachse erstreckendes Deckbandelement (11) aufweist, wobei im Inneren des Deckbandelementes (11) Hohlräume (16,16',17,17') zur Kühlung vorgesehen sind, welche eingangsseitig mit wenigstens einem durch die Turbinenschaufel (10) zur Schaufelspitze verlaufenden Kühlluftkanal (18) in Verbindung stehen, und ausgangsseitig in den die Turbinenschaufel (10) umgebenden Aussenraum münden, bei der die Hohlräume (16,16',17,17') und das Deckbandelement (11) zur Verringerung des Gewichtes des Deckbandelementes (11) in Form und Abmessung aufeinander abgestimmt.

Figure 00000001
Air-cooled turbine blade (10), which at the blade tip a transverse to the blade longitudinal axis extending shroud element (11), wherein in the interior of the shroud element (11) cavities (16,16 ', 17,17') are provided for cooling, which on the input side with at least one of the turbine blade (10) extending to the blade tip cooling air channel (18) are in communication, and the output side in the turbine blade (10) surrounding outer space, in which the cavities (16,16 ', 17,17') and the shroud element (11) adapted to reduce the weight of the shroud element (11) in shape and dimension.
Figure 00000001
EP00810966A 1999-12-28 2000-10-19 Turbine blade with air cooled tip shroud Expired - Lifetime EP1126136B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1996377 1999-12-28
DE19963377A DE19963377A1 (en) 1999-12-28 1999-12-28 Turbine blade with actively cooled cover band element

Publications (3)

Publication Number Publication Date
EP1126136A2 EP1126136A2 (en) 2001-08-22
EP1126136A3 true EP1126136A3 (en) 2004-05-19
EP1126136B1 EP1126136B1 (en) 2006-06-14

Family

ID=7934748

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00810966A Expired - Lifetime EP1126136B1 (en) 1999-12-28 2000-10-19 Turbine blade with air cooled tip shroud

Country Status (4)

Country Link
US (1) US6464460B2 (en)
EP (1) EP1126136B1 (en)
CN (1) CN1278018C (en)
DE (2) DE19963377A1 (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6869270B2 (en) * 2002-06-06 2005-03-22 General Electric Company Turbine blade cover cooling apparatus and method of fabrication
DE602004003757T2 (en) 2003-07-23 2007-10-11 Alstom Technology Ltd. Process for the preparation and method for the production of a turbine blade
EP1515000B1 (en) * 2003-09-09 2016-03-09 Alstom Technology Ltd Blading of a turbomachine with contoured shrouds
US20060280610A1 (en) * 2005-06-13 2006-12-14 Heyward John P Turbine blade and method of fabricating same
GB2430170B (en) * 2005-09-15 2008-05-07 Rolls Royce Plc Method of forming a cast component
US20070201980A1 (en) * 2005-10-11 2007-08-30 Honeywell International, Inc. Method to augment heat transfer using chamfered cylindrical depressions in cast internal cooling passages
US7686581B2 (en) * 2006-06-07 2010-03-30 General Electric Company Serpentine cooling circuit and method for cooling tip shroud
US7762774B2 (en) * 2006-12-15 2010-07-27 Siemens Energy, Inc. Cooling arrangement for a tapered turbine blade
US7568882B2 (en) * 2007-01-12 2009-08-04 General Electric Company Impingement cooled bucket shroud, turbine rotor incorporating the same, and cooling method
US7946817B2 (en) * 2008-01-10 2011-05-24 General Electric Company Turbine blade tip shroud
US20090180894A1 (en) * 2008-01-10 2009-07-16 General Electric Company Turbine blade tip shroud
US8057177B2 (en) * 2008-01-10 2011-11-15 General Electric Company Turbine blade tip shroud
US7946816B2 (en) * 2008-01-10 2011-05-24 General Electric Company Turbine blade tip shroud
US8322986B2 (en) * 2008-07-29 2012-12-04 General Electric Company Rotor blade and method of fabricating the same
GB0901129D0 (en) * 2009-01-26 2009-03-11 Rolls Royce Plc Rotor blade
CH700686A1 (en) * 2009-03-30 2010-09-30 Alstom Technology Ltd Blade for a gas turbine.
CN102069365B (en) * 2009-11-25 2014-12-10 中国江南航天工业集团林泉电机厂 Method for manufacturing radiator and radiator
US8444372B2 (en) 2011-02-07 2013-05-21 General Electric Company Passive cooling system for a turbomachine
EP2713009B1 (en) * 2012-09-26 2015-03-11 Alstom Technology Ltd Cooling method and system for cooling blades of at least one blade row in a rotary flow machine
JP6576466B2 (en) * 2015-04-15 2019-09-18 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツングＲｏｂｅｒｔ Ｂｏｓｃｈ Ｇｍｂｈ Free tip axial fan assembly
US10947898B2 (en) 2017-02-14 2021-03-16 General Electric Company Undulating tip shroud for use on a turbine blade
JP6636668B1 (en) * 2019-03-29 2020-01-29 三菱重工業株式会社 High-temperature component, method for manufacturing high-temperature component, and method for adjusting flow rate
US11255198B1 (en) * 2021-06-10 2022-02-22 General Electric Company Tip shroud with exit surface for cooling passages

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3433015A (en) * 1965-06-23 1969-03-18 Nasa Gas turbine combustion apparatus
JPS5847104A (en) * 1981-09-11 1983-03-18 Agency Of Ind Science & Technol Turbine rotor blade in gas turbine
JPH03194101A (en) * 1989-12-21 1991-08-23 Toshiba Corp Gas turbine cooling moving blade
US5306401A (en) * 1993-03-15 1994-04-26 Fierkens Richard H J Method for drilling cooling holes in turbine blades
JPH0828303A (en) * 1994-07-11 1996-01-30 Mitsubishi Heavy Ind Ltd Moving blade of gas turbine
DE19601819A1 (en) * 1995-02-23 1996-08-29 Bmw Rolls Royce Gmbh Turbine blade arrangement with a cooled shroud
EP0927814A1 (en) * 1997-06-23 1999-07-07 Mitsubishi Heavy Industries, Ltd. Tip shroud for cooled blade of gas turbine
EP0935052A2 (en) * 1998-02-04 1999-08-11 Mitsubishi Heavy Industries, Ltd. Gas turbine rotor blade
EP1013884A2 (en) * 1998-12-24 2000-06-28 ABB Alstom Power (Schweiz) AG Turbine blade with actively cooled head platform

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3527544A (en) * 1968-12-12 1970-09-08 Gen Motors Corp Cooled blade shroud
GB1605335A (en) * 1975-08-23 1991-12-18 Rolls Royce A rotor blade for a gas turbine engine
US5197852A (en) * 1990-05-31 1993-03-30 General Electric Company Nozzle band overhang cooling
GB9224241D0 (en) * 1992-11-19 1993-01-06 Bmw Rolls Royce Gmbh A turbine blade arrangement
GB2290833B (en) 1994-07-02 1998-08-05 Rolls Royce Plc Turbine blade
US5482435A (en) 1994-10-26 1996-01-09 Westinghouse Electric Corporation Gas turbine blade having a cooled shroud
US5785496A (en) 1997-02-24 1998-07-28 Mitsubishi Heavy Industries, Ltd. Gas turbine rotor
US6254345B1 (en) * 1999-09-07 2001-07-03 General Electric Company Internally cooled blade tip shroud

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3433015A (en) * 1965-06-23 1969-03-18 Nasa Gas turbine combustion apparatus
JPS5847104A (en) * 1981-09-11 1983-03-18 Agency Of Ind Science & Technol Turbine rotor blade in gas turbine
JPH03194101A (en) * 1989-12-21 1991-08-23 Toshiba Corp Gas turbine cooling moving blade
US5306401A (en) * 1993-03-15 1994-04-26 Fierkens Richard H J Method for drilling cooling holes in turbine blades
JPH0828303A (en) * 1994-07-11 1996-01-30 Mitsubishi Heavy Ind Ltd Moving blade of gas turbine
DE19601819A1 (en) * 1995-02-23 1996-08-29 Bmw Rolls Royce Gmbh Turbine blade arrangement with a cooled shroud
EP0927814A1 (en) * 1997-06-23 1999-07-07 Mitsubishi Heavy Industries, Ltd. Tip shroud for cooled blade of gas turbine
EP0935052A2 (en) * 1998-02-04 1999-08-11 Mitsubishi Heavy Industries, Ltd. Gas turbine rotor blade
EP1013884A2 (en) * 1998-12-24 2000-06-28 ABB Alstom Power (Schweiz) AG Turbine blade with actively cooled head platform

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 007, no. 128 (M - 220) 3 June 1983 (1983-06-03) *
PATENT ABSTRACTS OF JAPAN vol. 015, no. 457 (M - 1181) 20 November 1991 (1991-11-20) *
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 05 31 May 1996 (1996-05-31) *

Also Published As

Publication number Publication date
CN1278018C (en) 2006-10-04
CN1301911A (en) 2001-07-04
US6464460B2 (en) 2002-10-15
EP1126136A2 (en) 2001-08-22
DE19963377A1 (en) 2001-07-12
US20010006600A1 (en) 2001-07-05
EP1126136B1 (en) 2006-06-14
DE50012982D1 (en) 2006-07-27

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