EP1524409A3 - Blade-locking system - Google Patents

Blade-locking system Download PDF

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Publication number
EP1524409A3
EP1524409A3 EP04003299A EP04003299A EP1524409A3 EP 1524409 A3 EP1524409 A3 EP 1524409A3 EP 04003299 A EP04003299 A EP 04003299A EP 04003299 A EP04003299 A EP 04003299A EP 1524409 A3 EP1524409 A3 EP 1524409A3
Authority
EP
European Patent Office
Prior art keywords
blade
retaining ring
disc
groove
axial
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
EP04003299A
Other languages
German (de)
French (fr)
Other versions
EP1524409A2 (en
EP1524409B1 (en
Inventor
Tim Hopp
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.)
Rolls Royce Deutschland Ltd and Co KG
Original Assignee
Rolls Royce Deutschland Ltd and Co KG
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 Rolls Royce Deutschland Ltd and Co KG filed Critical Rolls Royce Deutschland Ltd and Co KG
Publication of EP1524409A2 publication Critical patent/EP1524409A2/en
Publication of EP1524409A3 publication Critical patent/EP1524409A3/en
Application granted granted Critical
Publication of EP1524409B1 publication Critical patent/EP1524409B1/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
    • F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
    • F01D5/32—Locking, e.g. by final locking blades or keys
    • F01D5/326—Locking of axial insertion type blades by other means
    • 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
    • F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
    • F01D5/3007—Fixing blades to rotors; Blade roots ; Blade spacers of axial insertion type
    • F01D5/3015—Fixing blades to rotors; Blade roots ; Blade spacers of axial insertion type with side plates
    • 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
    • F05D2260/30—Retaining components in desired mutual position
    • 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
    • F05D2300/50—Intrinsic material properties or characteristics
    • F05D2300/501—Elasticity

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Die Erfindung bezieht sich auf eine Schaufelrückhaltevorrichtung 1 für die axiale Fixierung von Schaufeln 1 an einer Scheibe 2, wobei ein mit der Schaufel 1 verbundener, mit einem Profil versehener Schaufelfuß 3 in eine zu dem Profil passende Axialnut 5 der Scheibe 2 eingeschoben ist und mittels eines geteilten Halterings 4 axial fixiert ist, wobei der Haltering 4 zumindest teilweise in einer Nut 6 des Schaufelfußes 3 aufgenommen ist, dadurch gekennzeichnet, dass die Scheibe 2 mit einer umlaufenden Ringnut 7 versehen ist, welche eine radial innere Anlagefläche für den Haltering 4 aufweist und dass der Haltering 4 zumindest in axialer Richtung elastisch verformbar ist.

Figure imgaf001
Figure imgaf002
The invention relates to a blade restraint device 1 for the axial fixing of blades 1 on a disc 2, wherein a connected to the blade 1, provided with a profile blade root 3 is inserted into a matching profile to the axial groove 5 of the disc 2 and by means of a split retaining ring 4 is axially fixed, wherein the retaining ring 4 is at least partially received in a groove 6 of the blade root 3, characterized in that the disc 2 is provided with a circumferential annular groove 7, which has a radially inner bearing surface for the retaining ring 4 and that the retaining ring 4 is elastically deformable at least in the axial direction.
Figure imgaf001
Figure imgaf002
EP04003299A 2003-10-16 2004-02-13 Blade-locking system Expired - Lifetime EP1524409B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10348198A DE10348198A1 (en) 2003-10-16 2003-10-16 Scoop restraint
DE10348198 2003-10-16

Publications (3)

Publication Number Publication Date
EP1524409A2 EP1524409A2 (en) 2005-04-20
EP1524409A3 true EP1524409A3 (en) 2007-01-24
EP1524409B1 EP1524409B1 (en) 2011-08-10

Family

ID=34353443

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04003299A Expired - Lifetime EP1524409B1 (en) 2003-10-16 2004-02-13 Blade-locking system

Country Status (3)

Country Link
US (1) US7244105B2 (en)
EP (1) EP1524409B1 (en)
DE (1) DE10348198A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004016977B4 (en) * 2004-04-07 2006-11-23 Mtu Aero Engines Gmbh Rotor for a turbomachine
WO2007028703A1 (en) * 2005-09-07 2007-03-15 Siemens Aktiengesellschaft Arrangement for axially securing rotating blades in a rotor and use
DE102006054154B4 (en) * 2006-11-16 2014-03-13 Man Diesel & Turbo Se turbocharger
US8221083B2 (en) 2008-04-15 2012-07-17 United Technologies Corporation Asymmetrical rotor blade fir-tree attachment
US8162615B2 (en) * 2009-03-17 2012-04-24 United Technologies Corporation Split disk assembly for a gas turbine engine
FR2951224B1 (en) * 2009-10-13 2011-12-09 Turbomeca TURBINE WHEEL EQUIPPED WITH AXIAL RETAINING JONC LOCKING BLADES IN RELATION TO A DISK
US9051845B2 (en) 2012-01-05 2015-06-09 General Electric Company System for axial retention of rotating segments of a turbine
JP5675674B2 (en) 2012-02-29 2015-02-25 三菱重工業株式会社 Turbine blade retaining structure and rotating machine having the same
US9140136B2 (en) 2012-05-31 2015-09-22 United Technologies Corporation Stress-relieved wire seal assembly for gas turbine engines
US9366145B2 (en) 2012-08-24 2016-06-14 United Technologies Corporation Turbine engine rotor assembly
US9790803B2 (en) 2013-03-08 2017-10-17 United Technologies Corporation Double split blade lock ring
US10724384B2 (en) * 2016-09-01 2020-07-28 Raytheon Technologies Corporation Intermittent tab configuration for retaining ring retention
US10876429B2 (en) 2019-03-21 2020-12-29 Pratt & Whitney Canada Corp. Shroud segment assembly intersegment end gaps control

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1830030U (en) * 1961-03-04 1961-04-27 Gen Electric SECURING THE SHOVELS IN THE RUNNERS OF TURBINES, COMPRESSORS OR. DGL.
US3656865A (en) * 1970-07-21 1972-04-18 Gen Motors Corp Rotor blade retainer
US4730983A (en) * 1986-09-03 1988-03-15 Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" System for attaching a rotor blade to a rotor disk
GB2258273A (en) * 1991-08-02 1993-02-03 Ruston Gas Turbines Ltd Rotor blade locking arrangement.
EP0761930A1 (en) * 1995-08-24 1997-03-12 ROLLS-ROYCE plc Seal and retention segments for the blades of an axial turbomachine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1830030U (en) * 1961-03-04 1961-04-27 Gen Electric SECURING THE SHOVELS IN THE RUNNERS OF TURBINES, COMPRESSORS OR. DGL.
US3656865A (en) * 1970-07-21 1972-04-18 Gen Motors Corp Rotor blade retainer
US4730983A (en) * 1986-09-03 1988-03-15 Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" System for attaching a rotor blade to a rotor disk
GB2258273A (en) * 1991-08-02 1993-02-03 Ruston Gas Turbines Ltd Rotor blade locking arrangement.
EP0761930A1 (en) * 1995-08-24 1997-03-12 ROLLS-ROYCE plc Seal and retention segments for the blades of an axial turbomachine

Also Published As

Publication number Publication date
US7244105B2 (en) 2007-07-17
EP1524409A2 (en) 2005-04-20
US20050084376A1 (en) 2005-04-21
EP1524409B1 (en) 2011-08-10
DE10348198A1 (en) 2005-05-12

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