EP1267041A3 - Cooled turbine blade - Google Patents

Cooled turbine blade Download PDF

Info

Publication number
EP1267041A3
EP1267041A3 EP02405389A EP02405389A EP1267041A3 EP 1267041 A3 EP1267041 A3 EP 1267041A3 EP 02405389 A EP02405389 A EP 02405389A EP 02405389 A EP02405389 A EP 02405389A EP 1267041 A3 EP1267041 A3 EP 1267041A3
Authority
EP
European Patent Office
Prior art keywords
outlet opening
edge
cavity
turbine blade
brushing
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
EP02405389A
Other languages
German (de)
French (fr)
Other versions
EP1267041B1 (en
EP1267041A2 (en
Inventor
Norman Roeloffs
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 EP1267041A2 publication Critical patent/EP1267041A2/en
Publication of EP1267041A3 publication Critical patent/EP1267041A3/en
Application granted granted Critical
Publication of EP1267041B1 publication Critical patent/EP1267041B1/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
    • F01D5/20—Specially-shaped blade tips to seal space between 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
    • 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
    • F01D5/186—Film cooling
    • 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
    • F05D2260/00—Function
    • F05D2260/20—Heat transfer, e.g. cooling
    • F05D2260/202—Heat transfer, e.g. cooling by film cooling

Landscapes

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

Abstract

Eine Schaufel (1) für eine Gasturbine umfasst eine Spitzenkappe (4) und eine Anstreifkante(6) und Kanäle (15, 25) für ein Kühlfluid, die sich von einem Hohlraum (5) zur Anstreifkante (6) erstrecken. Gemäß der Erfindung weist die Anstreifkante (6) eine Aushöhlung (16) auf, die sich von einem Halbraum (9) in die Anstreifkante(6) erstreckt, so dass der Kühlkanal in einen ersten und einen zweiten Teil (17, 18) mit einer Austrittsöffnung (11') in der Aushöhlung (16) beziehungsweise mit einer Austrittsöffnung (11) auf der Spitzenkrone (8) unterteilt wird. Falls die Austrittsöffnung (11) auf der Spitzenkrone (8) blockiert wird, kann das Kühlfluid durch die zusätzliche Austrittsöffnung (11') in den Halbraum(9) strömen und die Anstreifkante (6) kühlen.

Figure 00000001
A blade (1) for a gas turbine comprises a tip cap (4) and a contact edge (6) and channels (15, 25) for a cooling fluid, which extend from a cavity (5) to the contact edge (6). According to the invention, the brushing edge (6) has a cavity (16) which extends from a half space (9) into the brushing edge (6), so that the cooling duct has a first and a second part (17, 18) Outlet opening (11 ') in the cavity (16) or with an outlet opening (11) on the top crown (8) is divided. If the outlet opening (11) on the tip crown (8) is blocked, the cooling fluid can flow through the additional outlet opening (11 ') into the half-space (9) and cool the brushing edge (6).
Figure 00000001
EP02405389A 2001-06-11 2002-05-14 Cooled turbine blade Expired - Lifetime EP1267041B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/877,083 US6527514B2 (en) 2001-06-11 2001-06-11 Turbine blade with rub tolerant cooling construction
US877083 2001-06-11

Publications (3)

Publication Number Publication Date
EP1267041A2 EP1267041A2 (en) 2002-12-18
EP1267041A3 true EP1267041A3 (en) 2004-09-29
EP1267041B1 EP1267041B1 (en) 2006-06-28

Family

ID=25369214

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02405389A Expired - Lifetime EP1267041B1 (en) 2001-06-11 2002-05-14 Cooled turbine blade

Country Status (3)

Country Link
US (1) US6527514B2 (en)
EP (1) EP1267041B1 (en)
DE (1) DE50207362D1 (en)

Families Citing this family (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6994514B2 (en) * 2002-11-20 2006-02-07 Mitsubishi Heavy Industries, Ltd. Turbine blade and gas turbine
US6790005B2 (en) * 2002-12-30 2004-09-14 General Electric Company Compound tip notched blade
US6971851B2 (en) 2003-03-12 2005-12-06 Florida Turbine Technologies, Inc. Multi-metered film cooled blade tip
US6916150B2 (en) * 2003-11-26 2005-07-12 Siemens Westinghouse Power Corporation Cooling system for a tip of a turbine blade
US7118342B2 (en) * 2004-09-09 2006-10-10 General Electric Company Fluted tip turbine blade
FR2885645A1 (en) * 2005-05-13 2006-11-17 Snecma Moteurs Sa Hollow rotor blade for high pressure turbine, has pressure side wall presenting projecting end portion with tip that lies in outside face of end wall such that cooling channels open out into pressure side wall in front of cavity
US7510376B2 (en) * 2005-08-25 2009-03-31 General Electric Company Skewed tip hole turbine blade
US7287959B2 (en) * 2005-12-05 2007-10-30 General Electric Company Blunt tip turbine blade
US7473073B1 (en) 2006-06-14 2009-01-06 Florida Turbine Technologies, Inc. Turbine blade with cooled tip rail
US7695243B2 (en) 2006-07-27 2010-04-13 General Electric Company Dust hole dome blade
US7686578B2 (en) * 2006-08-21 2010-03-30 General Electric Company Conformal tip baffle airfoil
US8632311B2 (en) * 2006-08-21 2014-01-21 General Electric Company Flared tip turbine blade
US7607893B2 (en) * 2006-08-21 2009-10-27 General Electric Company Counter tip baffle airfoil
US8512003B2 (en) * 2006-08-21 2013-08-20 General Electric Company Tip ramp turbine blade
US8500396B2 (en) 2006-08-21 2013-08-06 General Electric Company Cascade tip baffle airfoil
US7494319B1 (en) 2006-08-25 2009-02-24 Florida Turbine Technologies, Inc. Turbine blade tip configuration
US7597539B1 (en) * 2006-09-27 2009-10-06 Florida Turbine Technologies, Inc. Turbine blade with vortex cooled end tip rail
US8425183B2 (en) 2006-11-20 2013-04-23 General Electric Company Triforial tip cavity airfoil
US7857587B2 (en) * 2006-11-30 2010-12-28 General Electric Company Turbine blades and turbine blade cooling systems and methods
US7740445B1 (en) 2007-06-21 2010-06-22 Florida Turbine Technologies, Inc. Turbine blade with near wall cooling
US7922451B1 (en) 2007-09-07 2011-04-12 Florida Turbine Technologies, Inc. Turbine blade with blade tip cooling passages
US8206108B2 (en) * 2007-12-10 2012-06-26 Honeywell International Inc. Turbine blades and methods of manufacturing
FR2934008B1 (en) * 2008-07-21 2015-06-05 Turbomeca AUBE HOLLOW TURBINE WHEEL HAVING A RIB
US8092178B2 (en) * 2008-11-28 2012-01-10 Pratt & Whitney Canada Corp. Turbine blade for a gas turbine engine
US8186965B2 (en) * 2009-05-27 2012-05-29 General Electric Company Recovery tip turbine blade
US8182221B1 (en) * 2009-07-29 2012-05-22 Florida Turbine Technologies, Inc. Turbine blade with tip sealing and cooling
GB201006451D0 (en) * 2010-04-19 2010-06-02 Rolls Royce Plc Blades
US8777567B2 (en) 2010-09-22 2014-07-15 Honeywell International Inc. Turbine blades, turbine assemblies, and methods of manufacturing turbine blades
US9297262B2 (en) * 2012-05-24 2016-03-29 General Electric Company Cooling structures in the tips of turbine rotor blades
US9856739B2 (en) * 2013-09-18 2018-01-02 Honeywell International Inc. Turbine blades with tip portions having converging cooling holes
US9879544B2 (en) * 2013-10-16 2018-01-30 Honeywell International Inc. Turbine rotor blades with improved tip portion cooling holes
US9816389B2 (en) * 2013-10-16 2017-11-14 Honeywell International Inc. Turbine rotor blades with tip portion parapet wall cavities
US10436039B2 (en) * 2013-11-11 2019-10-08 United Technologies Corporation Gas turbine engine turbine blade tip cooling
US9957808B2 (en) * 2014-05-08 2018-05-01 United Technologies Corporation Airfoil leading edge film array
US10376998B2 (en) * 2014-07-03 2019-08-13 United Technologies Corporation Methods and tools for use in repairing gas engine turbine blades
US9995147B2 (en) * 2015-02-11 2018-06-12 United Technologies Corporation Blade tip cooling arrangement
US10001019B2 (en) * 2015-03-04 2018-06-19 General Electric Company Turbine rotor blade
EP3088673B1 (en) 2015-04-28 2017-11-01 Siemens Aktiengesellschaft Blade for gas turbine, corresponding rotor, gas turbine and engine
US10107108B2 (en) 2015-04-29 2018-10-23 General Electric Company Rotor blade having a flared tip
US10156145B2 (en) * 2015-10-27 2018-12-18 General Electric Company Turbine bucket having cooling passageway
US10508554B2 (en) 2015-10-27 2019-12-17 General Electric Company Turbine bucket having outlet path in shroud
US9885243B2 (en) 2015-10-27 2018-02-06 General Electric Company Turbine bucket having outlet path in shroud
US10227876B2 (en) 2015-12-07 2019-03-12 General Electric Company Fillet optimization for turbine airfoil
US20180320530A1 (en) * 2017-05-05 2018-11-08 General Electric Company Airfoil with tip rail cooling
US10830057B2 (en) * 2017-05-31 2020-11-10 General Electric Company Airfoil with tip rail cooling
FR3067405B1 (en) * 2017-06-13 2020-08-14 Safran Aircraft Engines TURBOMACHINE AND PROCESS FOR SEALING BY AIR BLOWING
US10738644B2 (en) * 2017-08-30 2020-08-11 General Electric Company Turbine blade and method of forming blade tip for eliminating turbine blade tip wear in rubbing
CN107559048B (en) * 2017-09-22 2024-01-30 哈尔滨汽轮机厂有限责任公司 Rotor blade for medium and low calorific value heavy gas turbine engine
US10641106B2 (en) 2017-11-13 2020-05-05 Honeywell International Inc. Gas turbine engines with improved airfoil dust removal
CN108412555B (en) * 2018-03-15 2019-06-04 哈尔滨工业大学 The cavity jet stream of array improves the turbine moving blade that blade-tip leakage flow is dynamic and exchanges heat
US10551327B2 (en) * 2018-04-11 2020-02-04 General Electric Company Cooling hole inspection system
KR20190127024A (en) * 2018-05-03 2019-11-13 두산중공업 주식회사 Turbine blade and gas turbine including turbine blade
US10787932B2 (en) 2018-07-13 2020-09-29 Honeywell International Inc. Turbine blade with dust tolerant cooling system
KR102128840B1 (en) * 2018-11-27 2020-07-01 한국중부발전(주) Gas turbine blade tip geometry equipped with side structure
US11118462B2 (en) * 2019-01-24 2021-09-14 Pratt & Whitney Canada Corp. Blade tip pocket rib
US11371359B2 (en) 2020-11-26 2022-06-28 Pratt & Whitney Canada Corp. Turbine blade for a gas turbine engine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4142824A (en) * 1977-09-02 1979-03-06 General Electric Company Tip cooling for turbine blades
EP0816636A1 (en) * 1994-04-21 1998-01-07 Mitsubishi Jukogyo Kabushiki Kaisha Gas turbine rotor blade tip cooling device
US5927946A (en) * 1997-09-29 1999-07-27 General Electric Company Turbine blade having recuperative trailing edge tip cooling
DE19944923A1 (en) * 1999-09-20 2001-03-22 Asea Brown Boveri Turbine blade for rotor of gas turbine; has blade crown with cap having bars and hollow spaces inside bars connected to cooling channels to supply cooling air to inside of bars

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE794195A (en) 1972-01-18 1973-07-18 Bbc Sulzer Turbomaschinen COOLED STEERING VANE FOR GAS TURBINES
US4236870A (en) 1977-12-27 1980-12-02 United Technologies Corporation Turbine blade
US4474532A (en) 1981-12-28 1984-10-02 United Technologies Corporation Coolable airfoil for a rotary machine
JPS62271902A (en) 1986-01-20 1987-11-26 Hitachi Ltd Cooled blade for gas turbine
DE3603350A1 (en) 1986-02-04 1987-08-06 Walter Prof Dipl Ph Sibbertsen METHOD FOR COOLING THERMALLY LOADED COMPONENTS OF FLOWING MACHINES, DEVICE FOR CARRYING OUT THE METHOD AND TRAINING THERMALLY LOADED BLADES
US5140127A (en) 1989-09-20 1992-08-18 Rolls-Royce Plc Laser barrier material
US5476364A (en) 1992-10-27 1995-12-19 United Technologies Corporation Tip seal and anti-contamination for turbine blades
GB9514447D0 (en) 1995-07-14 1995-09-13 Rolls Royce Plc Laser barrier material and method
US6231307B1 (en) * 1999-06-01 2001-05-15 General Electric Company Impingement cooled airfoil tip

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4142824A (en) * 1977-09-02 1979-03-06 General Electric Company Tip cooling for turbine blades
EP0816636A1 (en) * 1994-04-21 1998-01-07 Mitsubishi Jukogyo Kabushiki Kaisha Gas turbine rotor blade tip cooling device
US5927946A (en) * 1997-09-29 1999-07-27 General Electric Company Turbine blade having recuperative trailing edge tip cooling
DE19944923A1 (en) * 1999-09-20 2001-03-22 Asea Brown Boveri Turbine blade for rotor of gas turbine; has blade crown with cap having bars and hollow spaces inside bars connected to cooling channels to supply cooling air to inside of bars

Also Published As

Publication number Publication date
US6527514B2 (en) 2003-03-04
EP1267041B1 (en) 2006-06-28
US20020197159A1 (en) 2002-12-26
EP1267041A2 (en) 2002-12-18
DE50207362D1 (en) 2006-08-10

Similar Documents

Publication Publication Date Title
EP1267041A3 (en) Cooled turbine blade
EP1270873A3 (en) Gas turbine blade
EP0937863A2 (en) Gas turbine rotor blade platform
US4940388A (en) Cooling of turbine blades
EP1326007A3 (en) Cooling of a structure for use as a turbine blade
CA2232128A1 (en) Cooled platform for a gas turbine moving blade
US7147439B2 (en) Apparatus and methods for cooling turbine bucket platforms
EP1197636A3 (en) Cooling of gas turbine engine aerofoils
EP0992654A3 (en) Coolant passages for gas turbine components
EP1087102A3 (en) Gas turbine bucket with impingement cooled platform
US6328531B1 (en) Cooled turbine blade
EP1363078A3 (en) Bulkhead panel for use in a combustion chamber of a gas turbine engine
EP0924385A3 (en) Turbine blades
EP1873354A3 (en) Leading edge cooling using chevron trip strips
DE60213733D1 (en) Turbomachinery blade with staggered tip edge
EP0899425A3 (en) Gas turbine blade
EP1798374A3 (en) Cooled turbine blade
EP1057970A3 (en) Impingement cooled airfoil tip
EP1424467A3 (en) Row of long and short chord length turbine airfoils
EP1749967A3 (en) Cooling arrangement for a gas turbine
EP1126136A3 (en) Turbine blade with air cooled tip shroud
EP1253293A3 (en) Attaching a rotor blade on a rotor of a turbomachine
US20040001753A1 (en) Air and steam cooled platform of a turbine blade or vane
DE59805843D1 (en) SHOVEL FOR A FLOWING MACHINE AND STEAM TURBINE
US7708528B2 (en) Platform mate face contours for turbine airfoils

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ALSTOM TECHNOLOGY LTD

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

RIC1 Information provided on ipc code assigned before grant

Ipc: 7F 01D 5/20 A

17P Request for examination filed

Effective date: 20050305

AKX Designation fees paid

Designated state(s): DE GB

17Q First examination report despatched

Effective date: 20050523

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE GB

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 50207362

Country of ref document: DE

Date of ref document: 20060810

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20060906

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20070329

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 50207362

Country of ref document: DE

Representative=s name: ROESLER, UWE, DIPL.-PHYS.UNIV., DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 50207362

Country of ref document: DE

Owner name: GENERAL ELECTRIC TECHNOLOGY GMBH, CH

Free format text: FORMER OWNER: ALSTOM TECHNOLOGY LTD., BADEN, CH

Ref country code: DE

Ref legal event code: R081

Ref document number: 50207362

Country of ref document: DE

Owner name: ANSALDO ENERGIA SWITZERLAND AG, CH

Free format text: FORMER OWNER: ALSTOM TECHNOLOGY LTD., BADEN, CH

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20170519

Year of fee payment: 16

Ref country code: DE

Payment date: 20170523

Year of fee payment: 16

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20170727 AND 20170802

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 50207362

Country of ref document: DE

Representative=s name: ROESLER, UWE, DIPL.-PHYS.UNIV., DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 50207362

Country of ref document: DE

Owner name: ANSALDO ENERGIA SWITZERLAND AG, CH

Free format text: FORMER OWNER: GENERAL ELECTRIC TECHNOLOGY GMBH, BADEN, CH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50207362

Country of ref document: DE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20180514

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180514

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181201