EP1540189B1 - Vorrichtung zum festhalten des fusses eines gebläseflügels - Google Patents

Vorrichtung zum festhalten des fusses eines gebläseflügels Download PDF

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Publication number
EP1540189B1
EP1540189B1 EP03761637A EP03761637A EP1540189B1 EP 1540189 B1 EP1540189 B1 EP 1540189B1 EP 03761637 A EP03761637 A EP 03761637A EP 03761637 A EP03761637 A EP 03761637A EP 1540189 B1 EP1540189 B1 EP 1540189B1
Authority
EP
European Patent Office
Prior art keywords
blade
packing member
zone
metal structure
end zones
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.)
Expired - Lifetime
Application number
EP03761637A
Other languages
English (en)
French (fr)
Other versions
EP1540189A1 (de
Inventor
Alain Bassot
Hervé BUISSON
Christophe Follonier
Eric Inghels
Bruce Pontoizeau
Patrick Reghezza
Anne Thenaisie
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.)
Safran Aircraft Engines SAS
Original Assignee
SNECMA SAS
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 SNECMA SAS filed Critical SNECMA SAS
Publication of EP1540189A1 publication Critical patent/EP1540189A1/de
Application granted granted Critical
Publication of EP1540189B1 publication Critical patent/EP1540189B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F01D5/323—Locking of axial insertion type blades by means of a key or the like parallel to the axis of the rotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/321—Rotors specially for elastic fluids for axial flow pumps for axial flow compressors
    • F04D29/322—Blade mountings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S416/00—Fluid reaction surfaces, i.e. impellers
    • Y10S416/50—Vibration damping features

Definitions

  • the invention relates to a device for retaining the foot of the fan blades.
  • the wedge comprises between the two elastomeric side edges, on either side of the central metal zone, a metal lower part which rests on the bottom of the cell.
  • the object of the invention is to improve the performance of the impacted blade by ensuring that the shim can absorb a portion of the impact energy beyond the rotation permitted by the shim according to the state of the technique.
  • the wedge thus works according to the principle of a leaf spring in the event of violent impact on the dawn.
  • the lower recess is advantageously connected to the upstream and downstream end zones by lunulae.
  • the lower recess is filled by overmoulding with the semi-rigid elastomeric material.
  • the central zone has a recessed profile relative to the profile of the cell.
  • the wedge 5 shown on the Figures 3, 4 and 5 is in the form of a curvilinear plate of longitudinal axis XX '. It is constituted a metal structure having recessed portions filled by overmoulding with a semi-rigid elastomeric material.
  • the lower recess 21 may optionally be filled by the elastomeric material, but this is not mandatory.
  • the overmolding of the metal structure by the elastomeric material is performed at a slightly higher rib than that of the metal part. This arrangement makes it possible to mount the wedge 5 in compression under the foot 3 of the blade 4 in order to annihilate the residual clearance between the wedge 5 and the blade root in the cell 2 of the disk 1.
  • the figure 6 shows the deformation undergone by the metal intermediate part of the wedge 5 in the event of violent impact of the blade 4.
  • the depth of the recess 21 can be determined in such a way that the wedge 5 functions as a spring, while maintaining its elasticity. It can also be determined so that the wedge 5 plastically deforms and absorbs some of the impact energy.
  • the lower surface of the intermediate portion can be connected to the upstream and downstream end zones 11 by lunulae 16 and 17, as is shown in FIG. figure 7 .

Landscapes

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

Claims (4)

  1. Keil (5) zum Halten des Fußes einer Gebläseschaufel (4) in einem am Umfang einer Rotorscheibe (1) ausgebildeten gekrümmten Hohlraum (2), wobei die Schaufel (4) zwei als Vorderseite bzw. Rückseite bezeichnete Flanken aufweist, wobei der Keil (5) in Form einer gekrümmten Platte vorliegt, die von einer Metallstruktur gebildet ist, welche ausgesparte, durch Anformen mit einem halbstarren Elastomermaterial gefüllte Teile aufweist, insbesondere an dem auf der Seite der Vorderseite der Schaufel (4) befindlichen Seitenrand zwischen zwei Endbereichen, einem stromaufwärtigen (10) und einem stromabwärtigen (11), mit vollständig metallischer Struktur, an dem auf der Seite der Rückseite der Schaufel befindlichen Seitenrand zwischen einem mittleren Bereich mit im wesentlichen metallischer Struktur und den genannten Endbereichen, sowie an den beiden oberen Teilen des Keils, die sich zwischen den beiden Elastomerseitenrändern auf beiden Seiten des mittleren Metallbereichs erstrecken, dadurch gekennzeichnet, daß die Metallstruktur ferner eine untere Aussparung (21) aufweist, die sich zwischen den beiden Endbereichen, dem stromaufwärtigen (10) und dem stromabwärtigen (11), über ihre gesamte Fläche (20) erstreckt.
  2. Keil nach Anspruch 1, dadurch gekennzeichnet, daß die untere Aussparung (21) mit dem stromaufwärtigen Endbereich (10) und dem stromabwärtigen Endbereich (11) durch Halbmonde (16, 17) verbunden ist.
  3. Keil nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die untere Aussparung (21) durch Anformen mit dem halbstarren Elastomermaterial gefüllt ist.
  4. Keil nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der mittlere Bereich (12) ein gegenüber dem Profil (23) des Hohlraums (2) zurückspringendes Profil (22) aufweist.
EP03761637A 2002-06-27 2003-06-25 Vorrichtung zum festhalten des fusses eines gebläseflügels Expired - Lifetime EP1540189B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0207977 2002-06-27
FR0207977A FR2841609B1 (fr) 2002-06-27 2002-06-27 Cale de retenue du pied des aubes de soufflante
PCT/FR2003/001955 WO2004003390A1 (fr) 2002-06-27 2003-06-25 Cale de retenue du pied des aubes de soufflante

Publications (2)

Publication Number Publication Date
EP1540189A1 EP1540189A1 (de) 2005-06-15
EP1540189B1 true EP1540189B1 (de) 2010-06-16

Family

ID=29724920

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03761637A Expired - Lifetime EP1540189B1 (de) 2002-06-27 2003-06-25 Vorrichtung zum festhalten des fusses eines gebläseflügels

Country Status (9)

Country Link
US (1) US7108484B2 (de)
EP (1) EP1540189B1 (de)
JP (1) JP4188320B2 (de)
AU (1) AU2003263256A1 (de)
CA (1) CA2489787C (de)
DE (1) DE60333021D1 (de)
FR (1) FR2841609B1 (de)
RU (1) RU2309301C2 (de)
WO (1) WO2004003390A1 (de)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2881174B1 (fr) 2005-01-27 2010-08-20 Snecma Moteurs Dispositif de positionnement d'une aube et disque aubage comportant un tel dispositif
FR2918129B1 (fr) 2007-06-26 2009-10-30 Snecma Sa Perfectionnement a une cale intercalee entre un pied d'aube et le fond de l'alveole du disque dans laquelle il est monte
FR2927998A1 (fr) * 2008-02-25 2009-08-28 Snecma Sa Machine de test d'un revetement pour pied d'aube.
FR2927997A1 (fr) * 2008-02-25 2009-08-28 Snecma Sa Procede pour tester un revetement de pied d'aube.
US8186961B2 (en) 2009-01-23 2012-05-29 Pratt & Whitney Canada Corp. Blade preloading system
FR2945074B1 (fr) * 2009-04-29 2011-06-03 Snecma Cale d'aube de soufflante renforcee
US8616850B2 (en) * 2010-06-11 2013-12-31 United Technologies Corporation Gas turbine engine blade mounting arrangement
FR2974864B1 (fr) * 2011-05-04 2016-05-27 Snecma Rotor de turbomachine avec moyen de retenue axiale des aubes
FR2975428B1 (fr) * 2011-05-17 2015-11-20 Snecma Roue a aubes de turbomachine
FR2978796B1 (fr) * 2011-08-03 2013-08-09 Snecma Roue a aubes de turbomachine
US8716673B2 (en) * 2011-11-29 2014-05-06 Fei Company Inductively coupled plasma source as an electron beam source for spectroscopic analysis
US8851854B2 (en) 2011-12-16 2014-10-07 United Technologies Corporation Energy absorbent fan blade spacer
GB201212750D0 (en) * 2012-07-18 2012-08-29 Rolls Royce Plc A rotor assembly
FR2996584A1 (fr) * 2012-10-10 2014-04-11 Snecma Cale pour pied de pale ajouree
US9422819B2 (en) * 2012-12-18 2016-08-23 United Technologies Corporation Rotor blade root spacer for arranging between a rotor disk and a root of a rotor blade
US9359906B2 (en) 2012-12-18 2016-06-07 United Technologies Corporation Rotor blade root spacer with a fracture feature
US10508556B2 (en) 2013-01-17 2019-12-17 United Technologies Corporation Rotor blade root spacer with grip element
WO2015053922A1 (en) 2013-10-11 2015-04-16 United Technologies Corporation Compressible fan blade with root spacer
GB201417417D0 (en) 2014-10-02 2014-11-19 Rolls Royce Plc Slider
US10465537B2 (en) * 2016-05-27 2019-11-05 General Electric Company Margin bucket dovetail radial support feature for axial entry buckets
US10738626B2 (en) * 2017-10-24 2020-08-11 General Electric Company Connection assemblies between turbine rotor blades and rotor wheels
CN109630465A (zh) * 2018-12-16 2019-04-16 中国航发沈阳发动机研究所 一种风扇垫片
US11555407B2 (en) 2020-05-19 2023-01-17 General Electric Company Turbomachine rotor assembly
KR102454379B1 (ko) * 2020-09-08 2022-10-14 두산에너빌리티 주식회사 로터 및 이를 포함하는 터보머신
US12146421B2 (en) 2022-10-28 2024-11-19 Rtx Corporation Deformable root spacer for a gas turbine engine rotor blade

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3216699A (en) * 1963-10-24 1965-11-09 Gen Electric Airfoil member assembly
US4431376A (en) * 1980-10-27 1984-02-14 United Technologies Corporation Airfoil shape for arrays of airfoils
CA1205709A (en) * 1981-08-31 1986-06-10 Elias H. Razinsky Airfoil for high efficiency/high lift fan
US5123813A (en) * 1991-03-01 1992-06-23 General Electric Company Apparatus for preloading an airfoil blade in a gas turbine engine
FR2746456B1 (fr) 1996-03-21 1998-04-30 Snecma Dispositif de retenue du pied des aubes d'une soufflante
FR2807096B1 (fr) * 2000-03-30 2002-05-31 Abb Alstom Power Nv Disque rotorique de turbine equipe d'ailettes a pied de sapin et procede de montage d'une ailette sur un disque
US6481971B1 (en) * 2000-11-27 2002-11-19 General Electric Company Blade spacer

Also Published As

Publication number Publication date
RU2005101881A (ru) 2005-10-27
US7108484B2 (en) 2006-09-19
RU2309301C2 (ru) 2007-10-27
US20050254951A1 (en) 2005-11-17
FR2841609B1 (fr) 2004-09-10
EP1540189A1 (de) 2005-06-15
FR2841609A1 (fr) 2004-01-02
AU2003263256A1 (en) 2004-01-19
WO2004003390A1 (fr) 2004-01-08
JP2005530955A (ja) 2005-10-13
JP4188320B2 (ja) 2008-11-26
CA2489787A1 (fr) 2004-01-08
CA2489787C (fr) 2011-08-09
DE60333021D1 (de) 2010-07-29

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