FR3136258B1 - Ensemble comportant un anneau forme de portions sectorisees pour aubes a calage variable, turbomachine equipee d’un tel ensemble et procede de demontage d’un tel ensemble - Google Patents

Ensemble comportant un anneau forme de portions sectorisees pour aubes a calage variable, turbomachine equipee d’un tel ensemble et procede de demontage d’un tel ensemble Download PDF

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Publication number
FR3136258B1
FR3136258B1 FR2205380A FR2205380A FR3136258B1 FR 3136258 B1 FR3136258 B1 FR 3136258B1 FR 2205380 A FR2205380 A FR 2205380A FR 2205380 A FR2205380 A FR 2205380A FR 3136258 B1 FR3136258 B1 FR 3136258B1
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France
Prior art keywords
assembly
stud
disassembling
ring formed
variable pitch
Prior art date
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Active
Application number
FR2205380A
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English (en)
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FR3136258A1 (fr
Inventor
Vincent François Georges Millier
Olivier Belmonte
Yves Roland Crochemore
Didier René André Escure
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Safran Aircraft Engines SAS
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Safran Aircraft Engines SAS
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Publication date
Application filed by Safran Aircraft Engines SAS filed Critical Safran Aircraft Engines SAS
Priority to FR2205380A priority Critical patent/FR3136258B1/fr
Publication of FR3136258A1 publication Critical patent/FR3136258A1/fr
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Publication of FR3136258B1 publication Critical patent/FR3136258B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/02—Hub construction
    • B64C11/04—Blade mountings
    • B64C11/06—Blade mountings for variable-pitch blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
    • B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
    • B64F5/40—Maintaining or repairing aircraft
    • 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
    • F04D29/323—Blade mountings adjustable

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

Abstract

L’invention concerne un ensemble pour une turbomachine, en particulier d’aéronef, l’ensemble comportant au moins une aube (3) à calage variable munie d’un plot (8) de forme cylindrique, et un anneau (2) d’axe longitudinal (X) muni de logements (12) destinés chacun à recevoir le plot (8) d’une aube, le plot (8) étant monté pivotant autour d’un axe de calage (A), l’ensemble comprenant en outre des éléments de pivotement (38) configurés de manière à favoriser le pivotement libre du plot autour de l’axe de calage et dans chaque logement (12). Selon l’invention, l’anneau (2) comprend une première partie (43) annulaire et une deuxième partie (44) qui sont coaxiales, la deuxième partie (44) comprenant une pluralité de portions sectorisées (44a, 44b, 44n) disposées de manière adjacente autour de l’axe longitudinal (X), chaque portion sectorisée (44a, 44b, 44n) étant fixée de manière amovible sur la première partie et définissant avec la première partie un logement (12). Figure pour l’abrégé : Figure 3
FR2205380A 2022-06-03 2022-06-03 Ensemble comportant un anneau forme de portions sectorisees pour aubes a calage variable, turbomachine equipee d’un tel ensemble et procede de demontage d’un tel ensemble Active FR3136258B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2205380A FR3136258B1 (fr) 2022-06-03 2022-06-03 Ensemble comportant un anneau forme de portions sectorisees pour aubes a calage variable, turbomachine equipee d’un tel ensemble et procede de demontage d’un tel ensemble

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2205380A FR3136258B1 (fr) 2022-06-03 2022-06-03 Ensemble comportant un anneau forme de portions sectorisees pour aubes a calage variable, turbomachine equipee d’un tel ensemble et procede de demontage d’un tel ensemble
FR2205380 2022-06-03

Publications (2)

Publication Number Publication Date
FR3136258A1 FR3136258A1 (fr) 2023-12-08
FR3136258B1 true FR3136258B1 (fr) 2025-06-20

Family

ID=82594795

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2205380A Active FR3136258B1 (fr) 2022-06-03 2022-06-03 Ensemble comportant un anneau forme de portions sectorisees pour aubes a calage variable, turbomachine equipee d’un tel ensemble et procede de demontage d’un tel ensemble

Country Status (1)

Country Link
FR (1) FR3136258B1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2943984B1 (fr) * 2009-04-07 2013-02-08 Airbus France Helice pour turbomachine d'aeronef comprenant un moyeu support d'aubes scinde en deux portions annulaires montees l'une sur l'autre.
GB201211133D0 (en) * 2012-06-22 2012-08-08 Rolls Royce Plc A catcher ring arrangement
FR3109569B1 (fr) * 2020-04-23 2022-05-06 Safran Aircraft Engines Pivot d’aube à orientation réglable et à intégrité sauvegardée pour moyeu de soufflante de turbomachine

Also Published As

Publication number Publication date
FR3136258A1 (fr) 2023-12-08

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