EP1705339A3 - Rotor shaft, in particular for a gas turbine - Google Patents

Rotor shaft, in particular for a gas turbine Download PDF

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Publication number
EP1705339A3
EP1705339A3 EP06110741.3A EP06110741A EP1705339A3 EP 1705339 A3 EP1705339 A3 EP 1705339A3 EP 06110741 A EP06110741 A EP 06110741A EP 1705339 A3 EP1705339 A3 EP 1705339A3
Authority
EP
European Patent Office
Prior art keywords
rotor shaft
gas turbine
cooling air
improvement
interior
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
EP06110741.3A
Other languages
German (de)
French (fr)
Other versions
EP1705339B1 (en
EP1705339A2 (en
Inventor
Markus Roland Wiebe
Thomas Kramer
Holger Kiewel
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.)
Ansaldo Energia IP UK Ltd
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 EP1705339A2 publication Critical patent/EP1705339A2/en
Publication of EP1705339A3 publication Critical patent/EP1705339A3/en
Application granted granted Critical
Publication of EP1705339B1 publication Critical patent/EP1705339B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F01D5/02—Blade-carrying members, e.g. rotors
    • F01D5/08—Heating, heat-insulating or cooling means
    • F01D5/081—Cooling fluid being directed on the side of the rotor disc or at the roots of the blades
    • 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

Abstract

Bei einer Rotorwelle (10), insbesondere für eine Gasturbine, sind Kühlluftkanäle (14) vorgesehen, die im wesentlichen in radialer Richtung von innen nach aussen verlaufen und mit einer im Inneren der Rotorwelle (10) vorhandenen Kühlluftzuführung (16) in Verbindung stehen.In a rotor shaft (10), in particular for a gas turbine, cooling air ducts (14) are provided, which extend essentially in the radial direction from the inside to the outside and are in communication with a cooling air supply (16) present in the interior of the rotor shaft (10).

Eine Verbesserung der mechanischen Eigenschaften der Rotorwelle wird dadurch erreicht, dass die Kühlluftkanäle (14) zur Verminderung von mechanischen Spannungen einen elliptischen Querschnitt aufweisen.

Figure imgaf001
An improvement of the mechanical properties of the rotor shaft is achieved in that the cooling air channels (14) have an elliptical cross-section for reducing mechanical stresses.
Figure imgaf001
EP06110741.3A 2005-03-23 2006-03-07 Rotor shaft, in particular for a gas turbine Not-in-force EP1705339B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH5042005 2005-03-23

Publications (3)

Publication Number Publication Date
EP1705339A2 EP1705339A2 (en) 2006-09-27
EP1705339A3 true EP1705339A3 (en) 2013-11-06
EP1705339B1 EP1705339B1 (en) 2016-11-30

Family

ID=35335753

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06110741.3A Not-in-force EP1705339B1 (en) 2005-03-23 2006-03-07 Rotor shaft, in particular for a gas turbine

Country Status (2)

Country Link
US (1) US7329086B2 (en)
EP (1) EP1705339B1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH699996A1 (en) 2008-11-19 2010-05-31 Alstom Technology Ltd Method for processing of a gas turbine runner.
CH702191A1 (en) 2009-11-04 2011-05-13 Alstom Technology Ltd Welded rotor.
EP2837769B1 (en) 2013-08-13 2016-06-29 Alstom Technology Ltd Rotor shaft for a turbomachine
US10113432B2 (en) 2014-03-19 2018-10-30 Ansaldo Energia Switzerland AG Rotor shaft with cooling bore inlets
FR3028883B1 (en) * 2014-11-25 2019-11-22 Safran Aircraft Engines TURBOMACHINE ROTOR SHAFT HAVING AN IMPROVED THERMAL EXCHANGE SURFACE
EP3205817A1 (en) 2016-02-09 2017-08-16 Ansaldo Energia Switzerland AG Fluid cooled rotor for a gas turbine
US10177618B2 (en) 2016-03-15 2019-01-08 General Atomics Rotor assembly and method of manufacturing
US10458242B2 (en) * 2016-10-25 2019-10-29 Pratt & Whitney Canada Corp. Rotor disc with passages

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3047514A1 (en) * 1979-12-17 1981-10-01 United Technologies Corp., 06101 Hartford, Conn. "ROTOR DISC FOR A GAS TURBINE"
DE2947521A1 (en) * 1978-11-27 1986-06-26 Snecma TURBINE DISC WITH CHANNELS FOR THE TRANSFER OF A COOLING FLUID
DE3713923A1 (en) * 1986-04-30 1987-11-05 Gen Electric COOLING AIR TRANSMISSION DEVICE FOR A GAS TURBINE ENGINE
FR2614654A1 (en) * 1987-04-29 1988-11-04 Snecma Turbine engine axial compressor disc with centripetal air take-off
DE4428207A1 (en) * 1994-08-09 1996-02-15 Bmw Rolls Royce Gmbh Mfg. turbine rotor disc with curved cooling air channels
DE3310529A1 (en) * 1982-03-23 1996-10-31 Snecma Device for cooling the rotor of a gas turbine
EP0814233A2 (en) * 1996-06-23 1997-12-29 ROLLS-ROYCE plc Gas turbine engine rotor disc with cooling fluid passage
EP0859127A1 (en) * 1997-02-13 1998-08-19 BMW Rolls-Royce GmbH Channeling of cooling air in a turbine rotor disc
EP1234949A2 (en) * 2001-02-26 2002-08-28 United Technologies Corporation Cooling air inlet configuration for a blade root

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2575568A (en) * 1946-11-12 1951-11-20 Gulf Research Development Co Centrifugal gas-liquid separator
FR2616480B1 (en) * 1987-06-10 1989-09-29 Snecma DEVICE FOR LOCKING BLADES WITH A HAMMER FOOT ON A TURBOMACHINE DISC AND ASSEMBLY AND DISASSEMBLY METHODS
GB2265671A (en) 1992-03-24 1993-10-06 Rolls Royce Plc Bladed rotor for a gas turbine engine
DE4324034A1 (en) * 1993-07-17 1995-01-19 Abb Management Ag Gas turbine with a cooled rotor
DE19620828C1 (en) * 1996-05-23 1997-09-04 Siemens Ag Steam turbine shaft incorporating cooling circuit
JP3621523B2 (en) * 1996-09-25 2005-02-16 株式会社東芝 Gas turbine rotor blade cooling system
JP3316418B2 (en) 1997-06-12 2002-08-19 三菱重工業株式会社 Gas turbine cooling blade
AT3140U1 (en) * 1998-11-06 1999-10-25 Avl List Gmbh CRANKCASE FOR AN INTERNAL COMBUSTION ENGINE
DE19941134C1 (en) * 1999-08-30 2000-12-28 Mtu Muenchen Gmbh Blade crown ring for gas turbine aircraft engine has each blade provided with transition region between blade surface and blade platform having successively decreasing curvature radii

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2947521A1 (en) * 1978-11-27 1986-06-26 Snecma TURBINE DISC WITH CHANNELS FOR THE TRANSFER OF A COOLING FLUID
DE3047514A1 (en) * 1979-12-17 1981-10-01 United Technologies Corp., 06101 Hartford, Conn. "ROTOR DISC FOR A GAS TURBINE"
DE3310529A1 (en) * 1982-03-23 1996-10-31 Snecma Device for cooling the rotor of a gas turbine
DE3713923A1 (en) * 1986-04-30 1987-11-05 Gen Electric COOLING AIR TRANSMISSION DEVICE FOR A GAS TURBINE ENGINE
FR2614654A1 (en) * 1987-04-29 1988-11-04 Snecma Turbine engine axial compressor disc with centripetal air take-off
DE4428207A1 (en) * 1994-08-09 1996-02-15 Bmw Rolls Royce Gmbh Mfg. turbine rotor disc with curved cooling air channels
EP0814233A2 (en) * 1996-06-23 1997-12-29 ROLLS-ROYCE plc Gas turbine engine rotor disc with cooling fluid passage
EP0859127A1 (en) * 1997-02-13 1998-08-19 BMW Rolls-Royce GmbH Channeling of cooling air in a turbine rotor disc
EP1234949A2 (en) * 2001-02-26 2002-08-28 United Technologies Corporation Cooling air inlet configuration for a blade root

Also Published As

Publication number Publication date
US20070086884A1 (en) 2007-04-19
EP1705339B1 (en) 2016-11-30
US7329086B2 (en) 2008-02-12
EP1705339A2 (en) 2006-09-27

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