EP1445423A3 - Kühlbare Turbomaschinenschaufel - Google Patents

Kühlbare Turbomaschinenschaufel Download PDF

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Publication number
EP1445423A3
EP1445423A3 EP04101493A EP04101493A EP1445423A3 EP 1445423 A3 EP1445423 A3 EP 1445423A3 EP 04101493 A EP04101493 A EP 04101493A EP 04101493 A EP04101493 A EP 04101493A EP 1445423 A3 EP1445423 A3 EP 1445423A3
Authority
EP
European Patent Office
Prior art keywords
turbomachine blade
rear edge
blade
blow
out openings
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
EP04101493A
Other languages
English (en)
French (fr)
Other versions
EP1445423A2 (de
EP1445423B1 (de
Inventor
Klaus Semmler
Bernhard 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
Priority to DE59913744T priority Critical patent/DE59913744D1/de
Publication of EP1445423A2 publication Critical patent/EP1445423A2/de
Publication of EP1445423A3 publication Critical patent/EP1445423A3/de
Application granted granted Critical
Publication of EP1445423B1 publication Critical patent/EP1445423B1/de
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
    • 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
    • F05D2260/208—Heat transfer, e.g. cooling using heat pipes
    • 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
    • F05D2260/221—Improvement of heat transfer
    • F05D2260/2214—Improvement of heat transfer by increasing the heat transfer surface
    • 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
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/10—Metals, alloys or intermetallic compounds
    • F05D2300/13—Refractory metals, i.e. Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, W
    • F05D2300/131—Molybdenum
    • 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
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/10—Metals, alloys or intermetallic compounds
    • F05D2300/14—Noble metals, i.e. Ag, Au, platinum group metals
    • F05D2300/141—Silver
    • 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
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/20—Oxide or non-oxide ceramics
    • F05D2300/22—Non-oxide ceramics
    • F05D2300/224—Carbon, e.g. graphite

Landscapes

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

Abstract

Entlang der Hinterkante (14) einer Turbomaschinenschaufel sind abwechselnd zu den Ausblaseöffnungen (22) in das Hinterkantenmaterial (141) eingebettete, thermisch hochleitende Stifte (23) angeordnet, welche in den Hinterkanten-Kühlkanal (12) hineinragen. Die Stifte führen Wärme aus dem Hinterkantenmaterial ab, und verbessern so die Kühlung der Schaufelhinterkante, ohne die Anzahl der Ausblaseöffnungen und damit den Kühlmittelverbrauch zu erhöhen.
EP04101493A 1999-04-21 1999-04-21 Kühlbare Turbomaschinenschaufel Expired - Lifetime EP1445423B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE59913744T DE59913744D1 (de) 1999-04-21 1999-04-21 Kühlbare Turbomaschinenschaufel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99810329A EP1046784B1 (de) 1999-04-21 1999-04-21 Kühlbares Bauteil

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP99810329A Division EP1046784B1 (de) 1999-04-21 1999-04-21 Kühlbares Bauteil

Publications (3)

Publication Number Publication Date
EP1445423A2 EP1445423A2 (de) 2004-08-11
EP1445423A3 true EP1445423A3 (de) 2004-08-25
EP1445423B1 EP1445423B1 (de) 2006-08-02

Family

ID=8242780

Family Applications (2)

Application Number Title Priority Date Filing Date
EP99810329A Expired - Lifetime EP1046784B1 (de) 1999-04-21 1999-04-21 Kühlbares Bauteil
EP04101493A Expired - Lifetime EP1445423B1 (de) 1999-04-21 1999-04-21 Kühlbare Turbomaschinenschaufel

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP99810329A Expired - Lifetime EP1046784B1 (de) 1999-04-21 1999-04-21 Kühlbares Bauteil

Country Status (3)

Country Link
US (1) US6305904B1 (de)
EP (2) EP1046784B1 (de)
DE (1) DE59910200D1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1847684A1 (de) * 2006-04-21 2007-10-24 Siemens Aktiengesellschaft Turbinenschaufel
EP2426317A1 (de) * 2010-09-03 2012-03-07 Siemens Aktiengesellschaft Turbinenschaufel für eine Gasturbine
EP2505789B1 (de) * 2011-03-30 2016-12-28 Safran Aero Boosters SA Gasflussabscheider mit Enteisungsvorrichtung über Wärmebrücke
US10533749B2 (en) * 2015-10-27 2020-01-14 Pratt & Whitney Cananda Corp. Effusion cooling holes
US10871075B2 (en) 2015-10-27 2020-12-22 Pratt & Whitney Canada Corp. Cooling passages in a turbine component
US11333022B2 (en) * 2019-08-06 2022-05-17 General Electric Company Airfoil with thermally conductive pins

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB624939A (en) * 1946-07-12 1949-06-20 Bbc Brown Boveri & Cie Gas turbine combustion chamber
GB2117455A (en) * 1982-03-26 1983-10-12 Mtu Muenchen Gmbh Axial flow turbine blade
EP0750957A1 (de) * 1995-06-07 1997-01-02 Allison Engine Company, Inc. Einstückig gegossene, hochtemperaturbeständige, dünnwandige Strukturen, deren Wände mit einem eingegossenen Verbindungselement höherer Wärmeleitfähigkeit verbunden sind
DE19654115A1 (de) * 1996-12-23 1998-06-25 Asea Brown Boveri Vorrichtung zum Kühlen einer beidseitig umströmten Wand

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3527543A (en) 1965-08-26 1970-09-08 Gen Electric Cooling of structural members particularly for gas turbine engines
DE4430302A1 (de) 1994-08-26 1996-02-29 Abb Management Ag Prallgekühltes Wandteil

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB624939A (en) * 1946-07-12 1949-06-20 Bbc Brown Boveri & Cie Gas turbine combustion chamber
GB2117455A (en) * 1982-03-26 1983-10-12 Mtu Muenchen Gmbh Axial flow turbine blade
EP0750957A1 (de) * 1995-06-07 1997-01-02 Allison Engine Company, Inc. Einstückig gegossene, hochtemperaturbeständige, dünnwandige Strukturen, deren Wände mit einem eingegossenen Verbindungselement höherer Wärmeleitfähigkeit verbunden sind
DE19654115A1 (de) * 1996-12-23 1998-06-25 Asea Brown Boveri Vorrichtung zum Kühlen einer beidseitig umströmten Wand

Also Published As

Publication number Publication date
EP1046784A1 (de) 2000-10-25
EP1445423A2 (de) 2004-08-11
US6305904B1 (en) 2001-10-23
EP1046784B1 (de) 2004-08-11
EP1445423B1 (de) 2006-08-02
DE59910200D1 (de) 2004-09-16

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