EP1016773A3 - Kühlbare Schaufel für eine Gasturbine - Google Patents

Kühlbare Schaufel für eine Gasturbine Download PDF

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Publication number
EP1016773A3
EP1016773A3 EP99811183A EP99811183A EP1016773A3 EP 1016773 A3 EP1016773 A3 EP 1016773A3 EP 99811183 A EP99811183 A EP 99811183A EP 99811183 A EP99811183 A EP 99811183A EP 1016773 A3 EP1016773 A3 EP 1016773A3
Authority
EP
European Patent Office
Prior art keywords
blade root
blade
rear edge
blow
cavity
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
EP99811183A
Other languages
English (en)
French (fr)
Other versions
EP1016773B1 (de
EP1016773A2 (de
Inventor
Alexander Dr. Beeck
Bernhard Dr. Bonhoff
Rainer Conzelmann
Mark Mccarthy
Kenneth Hall
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 Schweiz 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 Schweiz AG filed Critical Alstom Schweiz AG
Publication of EP1016773A2 publication Critical patent/EP1016773A2/de
Publication of EP1016773A3 publication Critical patent/EP1016773A3/de
Application granted granted Critical
Publication of EP1016773B1 publication Critical patent/EP1016773B1/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

Landscapes

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

Abstract

Kühlbare Schaufel für eine Gasturbine oder dergleichen, mit einem Schaufelblatt (10), das aus einer saugseitigen Wand (12) und einer druckseitigen Wand (14) aufgebaut ist, welche unter Bildung eines Hohlraumes (20) über eine Vorderkante (16) und eine Hinterkante (18) verbunden sind, einem Schaufelfuß (30), einer Schaufelwurzel (40) als Übergangsbereich zwischen dem Schaufelblatt (10) und dem Schaufelfuß (30), wenigstens einem Kühlkanal (20), der im Hohlraum (20) integriert und von einem Kühlmedium (K) durchströmbar ist, sowie Ausblasöffnungen für das Kühlmedium (K), die ausgehend von einer Eintrittsebene (56) am Hohlraum durchgehend zu einer Austrittsebene (58) im Bereich der Hinterkante (18) angeordnet sind, wobei dass zumindest im Bereich der Hinterkante (18) die Schaufelwurzel (40) einen konkav gekrümmten Konturverlauf aufweist und eine der Ausblasöffnungen als Ausblasschlitz (50) an der Schaufelwurzel (40) angeordnet ist, der sich in der Austrittsebene (58) der Hinterkante (18) in radialer Richtung (r) zumindest über den gesamten Bereich der Schaufelwurzel (40) erstreckt und dessen Querschnittsform zumindest in der Austrittsebene (58) dem Konturverlauf der Schaufelwurzel (40) soweit folgt, dass Wandabschnitte (42) mit angenähert konstanter Wanddicke (d) entstehen.
Figure 00000001
EP99811183A 1998-12-30 1999-12-21 Kühlbare Schaufel für eine Gasturbine Expired - Lifetime EP1016773B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19860788A DE19860788A1 (de) 1998-12-30 1998-12-30 Kühlbare Schaufel für eine Gasturbine
DE19860788 1998-12-30

Publications (3)

Publication Number Publication Date
EP1016773A2 EP1016773A2 (de) 2000-07-05
EP1016773A3 true EP1016773A3 (de) 2003-12-03
EP1016773B1 EP1016773B1 (de) 2005-08-03

Family

ID=7893161

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99811183A Expired - Lifetime EP1016773B1 (de) 1998-12-30 1999-12-21 Kühlbare Schaufel für eine Gasturbine

Country Status (2)

Country Link
EP (1) EP1016773B1 (de)
DE (2) DE19860788A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19921644B4 (de) 1999-05-10 2012-01-05 Alstom Kühlbare Schaufel für eine Gasturbine
EP1456505A1 (de) 2001-12-10 2004-09-15 ALSTOM Technology Ltd Thermisch belastetes bauteil
DE10295864D2 (de) 2001-12-14 2004-11-04 Alstom Technology Ltd Baden Gasturbinenanordnung
FR2864990B1 (fr) * 2004-01-14 2008-02-22 Snecma Moteurs Perfectionnements apportes aux fentes d'evacuation de l'air de refroidissement d'aubes de turbine haute-pression
US10260355B2 (en) 2016-03-07 2019-04-16 Honeywell International Inc. Diverging-converging cooling passage for a turbine blade
US10815792B2 (en) 2019-01-04 2020-10-27 Raytheon Technologies Corporation Gas turbine engine component with a cooling circuit having a flared base
US20230151737A1 (en) * 2021-11-18 2023-05-18 Raytheon Technologies Corporation Airfoil with axial cooling slot having diverging ramp

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3966357A (en) * 1974-09-25 1976-06-29 General Electric Company Blade baffle damper
GB1605180A (en) * 1974-05-16 1983-01-26 Lls Royce Ltd Method for manufacturing a blade for a gas turbine engine
US4767261A (en) * 1986-04-25 1988-08-30 Rolls-Royce Plc Cooled vane
WO1998057042A1 (fr) * 1997-06-12 1998-12-17 Mitsubishi Heavy Industries, Ltd. Aube mobile refroidie pour turbines a gaz

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4236870A (en) * 1977-12-27 1980-12-02 United Technologies Corporation Turbine blade
US5498133A (en) 1995-06-06 1996-03-12 General Electric Company Pressure regulated film cooling

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1605180A (en) * 1974-05-16 1983-01-26 Lls Royce Ltd Method for manufacturing a blade for a gas turbine engine
US3966357A (en) * 1974-09-25 1976-06-29 General Electric Company Blade baffle damper
US4767261A (en) * 1986-04-25 1988-08-30 Rolls-Royce Plc Cooled vane
WO1998057042A1 (fr) * 1997-06-12 1998-12-17 Mitsubishi Heavy Industries, Ltd. Aube mobile refroidie pour turbines a gaz

Also Published As

Publication number Publication date
EP1016773B1 (de) 2005-08-03
DE19860788A1 (de) 2000-07-06
EP1016773A2 (de) 2000-07-05
DE59912356D1 (de) 2005-09-08

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