EP1335113B1 - Befestiganordnung für den Statorring einer Turbomaschine - Google Patents

Befestiganordnung für den Statorring einer Turbomaschine Download PDF

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Publication number
EP1335113B1
EP1335113B1 EP03290288A EP03290288A EP1335113B1 EP 1335113 B1 EP1335113 B1 EP 1335113B1 EP 03290288 A EP03290288 A EP 03290288A EP 03290288 A EP03290288 A EP 03290288A EP 1335113 B1 EP1335113 B1 EP 1335113B1
Authority
EP
European Patent Office
Prior art keywords
sectors
casing
distributor
sealing
attachment
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
EP03290288A
Other languages
English (en)
French (fr)
Other versions
EP1335113A1 (de
Inventor
Patrick Joseph Marie Girard
Sébastien Alain Imbourg
Philippe Jean-Pierre Pabion
Jean-Luc Soupizon
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
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Filing date
Publication date
Application filed by SNECMA SAS filed Critical SNECMA SAS
Publication of EP1335113A1 publication Critical patent/EP1335113A1/de
Application granted granted Critical
Publication of EP1335113B1 publication Critical patent/EP1335113B1/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
    • F01D9/00—Stators
    • F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
    • F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
    • F01D9/042—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector fixing blades to stators
    • F01D9/044—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector fixing blades to stators permanently, e.g. by welding, brazing, casting or the like
    • 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
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
    • F01D25/246—Fastening of diaphragms or stator-rings

Definitions

  • This invention relates to an arrangement latching sectors in an arc of distributor.
  • the distributors considered here are meet in turbomachines and carry the blades fixed to the stator to correct the flow of gas.
  • the areas of the distributor are mounted to inside the stator housing by interlocking hooks by resting them on support faces some of which must resume the efforts made on the vanes of the dispenser.
  • the outer ring 3 of sectors 1 of distributor includes an upstream leg 4 and a downstream leg 5 all two hook-shaped, and the housing 2 includes upstream legs 6 and downstream legs 7 still shaped hook, and associated in pairs to a distributor given.
  • leg 4 of sector 1 is engaged around the lug 6 of the casing 2, but downstream it is the lug 7 of the casing 2 which is engaged around the This is justified if we consider that the F forces exerted on the distributor are essentially directed downstream, and transmitted to the carter 2 partially in the form of a moment comprising a centripetal radial force R1 at the front and a centrifuge R2 downstream.
  • Legs 4 and 5 sectors 1 therefore rely on the legs 6 and 7 of the casing 2 to contact faces 8 and 9 which are faces recovery efforts.
  • the axial component of efforts F is also transmitted to the casing 2 by an axial force X which is exerted downstream of the leg 5, at one end curved hook 10 of the leg 7; the face of contact between the leg 5 and the end 10 is therefore a axial face of force recovery 11.
  • a disadvantage of this design is that the lugs 6 and 7 of the casing 2 are heavily loaded, which is all the more worrying as their form in crochet makes them fragile and they are subject to warm-ups in service all the more important that they are strongly protruding towards the interior of the vein of gases, and that the intrinsic resistance of the matter that constitutes them can be weakened.
  • the carter is weighed down by the legs it takes make it massive, its manufacture is more difficult in because of the complication of its form and it has to practical to be constructed of a fairly noble material that in no way justified by the efforts he must undergo off the legs.
  • sectors 1 and 16 of distributor and sealing that alternate axially in the machine are assembled together since the outer ring 3 of sectors 1 of distributor includes upstream a leg 20 which engages in the downstream end of the neighboring sealing sectors 16, and that the sealing sectors 16 likewise have a upstream leg 21 which engages under the leg 5 downstream of the adjacent ring 3 of the distributor 1.
  • the legs 20 and 21 ensure the maintenance of sectors 1 and 16.
  • US-4,529,355-A discloses a arrangement where the housing carries the sealing sectors and distributors by spacers which are screwed. So it's smooth, but the hooks are on spacers that are otherwise heavy and cumbersome. This previous conception therefore seems even worse.
  • the invention relates to a distributor sector hooking arrangement of a different kind, the essential purpose of which is not to not resort to hook-shaped legs belonging to the crankcase, to simplify this and to make the mounting of the dispenser more convenient.
  • the basic idea at the source of the invention is that the faces of recovery of efforts in the directions directed axially and radially outward will now be located on the sealing areas, the casing no longer providing essentially only unsolicited or unsolicited contact surfaces, if although the efforts that he must resist will be considerably reduced.
  • a notable form of the invention is characterized in that the distributor and sealing includes two-end lugs opposite axes, the legs of the distributor are clamped between the legs of the sealing areas and the crankcase, and the sectors are attached to the housing by a portion median.
  • the overall shape of the distributor sectors, which is now associated with the reference 25, is not substantially modified, and they still include an outer ring 26 provided with a tab 27 upstream and a tab 28 to the downstream.
  • the tabs 27 and 28 are supported by their outer faces on radial faces 29 and 30 directed towards the inside of the casing, which now bears the reference 31.
  • Sealing areas, now 32, are alternately arranged alternatively with the sectors 25 in addition to an abradable ring 33, an outer ring 34 whose downstream 35 and upstream ends 36 serve to grip the tabs 27 and 28 between them and between the bearing faces 29 and 30 respectively of the 31.
  • the downstream end 35 carries an outwardly directed radial bearing face 37 on which the centripetal radial force R 1 is weighed
  • the upstream end 36 carries a radial bearing face directed towards outside 38 and an axial bearing surface 39 for resumption of the axial force X.
  • the outer rings 34 are joined to the casing 31 to a median portion provided with a rib 40 (or a boss) penetrating a groove 41 (or a hollow x) of complementary shape of the housing 31 to accurately adjust the position of the sealing sectors 32.
  • Screws 42 are engaged through the boss 40 and the housing 31 to fix the sealing sectors 32 thereto. These screws (42) are secured to the housing by the nut 46.
  • Another attachment means such as a pin engaged by force, would perform the same function.
  • sealing sectors 32 are, however, rather less loaded than the legs in hook form of the housing 2 of the known embodiment.
  • the forces R 1 and X exert antagonistic moments R 1 x L and X x 1 on the outer ring 34 around the point of attachment of the screw 42 to the casing 31, and it is possible to adjust the lever arms L and 1 of the R and X forces respectively by a judicious choice of the position of the screw 42 so that their moments have comparable values and that the bending produced on the screw 42 is greatly reduced.
  • the distributor sectors 25 can be mounted by purely axial movements, the sealing sectors 32 then being mounted behind them, which is more convenient and gives more freedom to arrange the machine. Angled pieces 43 secured to the housing 31 by pins 44 may be added to provide an axial abutment face 45 to the manifold sectors 25.
  • this typical axial assembly allows reduce the axial clearance between the stator vanes (inner ring 12 of sectors 1 of FIG. 1) and the blades of the rotor (inner ring 13 of the vanes rotor 15 in Figure 1); accordingly, this makes it possible to reduce the leakage sections (47) between rotor and stator and ensures a better performance of the bladed set.

Landscapes

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

Claims (5)

  1. Aufhängungsanordnung von Kreisbogensektoren (25) von Schaufeln tragenden Verteilern an einem Gehäuse (31) eines Stators, umfassend Auflageflächen (29,30,37,38,39) mit radialer und axialer Ausrichtung für die Sektoren, die an dem Gehäuse verteilt sind, sowie autonome Aufhängungsteile, von denen mindestens einer eine nach außen gerichtete radiale Ausrichtungsfläche (37) und einer eine axiale Ausrichtungsfläche (39) ist, wobei beide Flächen zur Aufnahme von auf die Schaufeln der Sektoren ausgeübten Kräften dienen, wobei Dichtungssektoren (32) am Gehäuse befestigt sind und mit den Verteilungssektoren in der Axialrichtung alternieren, dadurch gekennzeichnet, dass die Fläche mit radialer Ausrichtung nach außen und die axiale Kraftaufnahmefläche sich an den Dichtungssektoren befinden.
  2. Aufhängungsanordnung von Kreisbogensektoren eines Verteilers nach Anspruch 1, dadurch gekennzeichnet, dass die Verteilersektoren und Dichtungssektoren Klauen an zwei entgegengesetzten axialen Enden aufweisen, wobei die Klauen (27,28) der Verteilersektoren zwischen den Klauen (35,36) der Dichtungssektoren (32) und dem Gehäuse (31) eingeschlossen sind und die Dichtungssektoren am Gehäuse durch einen Mittelabschnitt befestigt sind.
  3. Aufhängungsanordnung von Kreisbogensektoren eines Verteilers nach Anspruch 2, dadurch gekennzeichnet, dass die Dichtungssektoren am Gehäuse durch eine Element (42) befestigt sind, welches das Gehäuse durchsetzt und Mittel zur Positionierung am Gehäuse umfasst.
  4. Aufhängungsanordnung von Kreisbogensektoren eines Verteilers nach einem der Ansprüche 2 oder 3, dadurch gekennzeichnet, dass sich die axiale Ausrichtungsfläche (39) zur Kraftaufnahme axial stromauf der Dichtungssektoren befindet und die nach außen gerichtete radiale Ausrichtungsfläche (37) zur Kraftaufnahme axial stromab der Dichtungssektoren gelegen ist.
  5. Aufhängungsanordnung von Kreisbogensektoren eines Verteilers nach den Ansprüchen 3 und 4, dadurch gekennzeichnet, dass die Dichtungssektoren derart gestaltet sind, dass die von den Kraftaufnahmeflächen aufgenommenen Kräfte entgegengesetzte Momente (R1 x L,X x 1) von im wesentlichen gleichen Größen auf die das Gehäuse durchsetzenden Elemente ausüben.
EP03290288A 2002-02-07 2003-02-05 Befestiganordnung für den Statorring einer Turbomaschine Expired - Lifetime EP1335113B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0201460 2002-02-07
FR0201460A FR2835563B1 (fr) 2002-02-07 2002-02-07 Agencement d'accrochage de secteurs en arc de cercle de distributeur porteur d'aubes

Publications (2)

Publication Number Publication Date
EP1335113A1 EP1335113A1 (de) 2003-08-13
EP1335113B1 true EP1335113B1 (de) 2005-11-02

Family

ID=27589603

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03290288A Expired - Lifetime EP1335113B1 (de) 2002-02-07 2003-02-05 Befestiganordnung für den Statorring einer Turbomaschine

Country Status (11)

Country Link
US (2) US20030146578A1 (de)
EP (1) EP1335113B1 (de)
JP (1) JP4087720B2 (de)
CN (1) CN100357569C (de)
CA (1) CA2418357C (de)
DE (1) DE60302077T2 (de)
ES (1) ES2250844T3 (de)
FR (1) FR2835563B1 (de)
MA (1) MA25948A1 (de)
RU (1) RU2311539C2 (de)
UA (1) UA76424C2 (de)

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Publication number Priority date Publication date Assignee Title
FR2829525B1 (fr) * 2001-09-13 2004-03-12 Snecma Moteurs Assemblage de secteurs d'un distributeur de turbine a un carter
DE102004016222A1 (de) * 2004-03-26 2005-10-06 Rolls-Royce Deutschland Ltd & Co Kg Anordnung zur selbsttätigen Laufspalteinstellung bei einer zwei- oder mehrstufigen Turbine
US7637110B2 (en) * 2005-11-30 2009-12-29 General Electric Company Methods and apparatuses for assembling a gas turbine engine
US7523616B2 (en) * 2005-11-30 2009-04-28 General Electric Company Methods and apparatuses for assembling a gas turbine engine
US7493771B2 (en) * 2005-11-30 2009-02-24 General Electric Company Methods and apparatuses for assembling a gas turbine engine
FR2899274B1 (fr) * 2006-03-30 2012-08-17 Snecma Dispositif de fixation de secteurs d'anneau autour d'une roue de turbine d'une turbomachine
US7665960B2 (en) 2006-08-10 2010-02-23 United Technologies Corporation Turbine shroud thermal distortion control
US7771160B2 (en) * 2006-08-10 2010-08-10 United Technologies Corporation Ceramic shroud assembly
FR2923525B1 (fr) * 2007-11-13 2009-12-18 Snecma Etancheite d'un anneau de rotor dans un etage de turbine
FR2928961B1 (fr) * 2008-03-19 2015-11-13 Snecma Distributeur sectorise pour une turbomachine.
FR2928963B1 (fr) * 2008-03-19 2017-12-08 Snecma Distributeur de turbine pour une turbomachine.
FR2930592B1 (fr) * 2008-04-24 2010-04-30 Snecma Distributeur de turbine pour une turbomachine
FR2939836B1 (fr) * 2008-12-12 2015-05-15 Snecma Joint d'etancheite de plateforme dans un rotor de turbomachine
FR2944554B1 (fr) * 2009-04-16 2014-06-13 Snecma Turbine haute-pression de turbomachine
US8167546B2 (en) * 2009-09-01 2012-05-01 United Technologies Corporation Ceramic turbine shroud support
US8608424B2 (en) * 2009-10-09 2013-12-17 General Electric Company Contoured honeycomb seal for a turbomachine
US8647055B2 (en) * 2011-04-18 2014-02-11 General Electric Company Ceramic matrix composite shroud attachment system
FR2974841B1 (fr) * 2011-05-04 2013-06-07 Snecma Dispositif d'etancheite pour distributeur de turbine de turbomachine
FR2981602B1 (fr) * 2011-10-25 2017-02-17 Snecma Propulsion Solide Procede de fabrication d'un secteur de distributeur de turbine ou redresseur de compresseur en materiau composite pour turbomachine et turbine ou compresseur incorporant un distributeur ou un redresseur forme de tels secteurs
US9291061B2 (en) * 2012-04-13 2016-03-22 General Electric Company Turbomachine blade tip shroud with parallel casing configuration
US9568009B2 (en) 2013-03-11 2017-02-14 Rolls-Royce Corporation Gas turbine engine flow path geometry
EP2896796B1 (de) * 2014-01-20 2019-09-18 Safran Aero Boosters SA Stator einer axialen Strömungsmaschine und zugehörige Strömungsmaschine
FR3057015B1 (fr) * 2016-09-30 2018-12-07 Safran Aircraft Engines Disque de rotor comportant une toile a epaisseur variable
FR3083564B1 (fr) * 2018-07-05 2021-07-09 Safran Aircraft Engines Turbine comportant un element abradable a position radiale ajustable
RU190280U1 (ru) * 2019-01-09 2019-06-25 Публичное Акционерное Общество "Одк-Сатурн" Устройство для фиксации сегментов сопловых лопаток в силовом корпусе статора турбины
BE1027280B1 (fr) * 2019-05-16 2020-12-15 Safran Aero Boosters Sa Carter de compresseur pour turbomachine
FR3100838B1 (fr) * 2019-09-13 2021-10-01 Safran Aircraft Engines Anneau d’etancheite de turbomachine

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Also Published As

Publication number Publication date
DE60302077T2 (de) 2006-07-20
CA2418357A1 (en) 2003-08-07
US20050042081A1 (en) 2005-02-24
JP2003269111A (ja) 2003-09-25
CA2418357C (en) 2010-10-26
MA25948A1 (fr) 2003-12-31
UA76424C2 (uk) 2006-08-15
CN1443927A (zh) 2003-09-24
FR2835563B1 (fr) 2004-04-02
US20030146578A1 (en) 2003-08-07
JP4087720B2 (ja) 2008-05-21
FR2835563A1 (fr) 2003-08-08
CN100357569C (zh) 2007-12-26
RU2311539C2 (ru) 2007-11-27
EP1335113A1 (de) 2003-08-13
ES2250844T3 (es) 2006-04-16
DE60302077D1 (de) 2005-12-08
US7290982B2 (en) 2007-11-06

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