FR3053998B1 - TURBOMACHINE WHEEL - Google Patents

TURBOMACHINE WHEEL Download PDF

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Publication number
FR3053998B1
FR3053998B1 FR1656691A FR1656691A FR3053998B1 FR 3053998 B1 FR3053998 B1 FR 3053998B1 FR 1656691 A FR1656691 A FR 1656691A FR 1656691 A FR1656691 A FR 1656691A FR 3053998 B1 FR3053998 B1 FR 3053998B1
Authority
FR
France
Prior art keywords
blade
platform
sectors
pivot axis
opening
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.)
Active
Application number
FR1656691A
Other languages
French (fr)
Other versions
FR3053998A1 (en
Inventor
Audrey LAGUERRE
Alain De Gaillard Thomas
Bernard Marie Boisson Alexandre
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
Safran Aircraft Engines 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 Safran Aircraft Engines SAS filed Critical Safran Aircraft Engines SAS
Priority to FR1656691A priority Critical patent/FR3053998B1/en
Publication of FR3053998A1 publication Critical patent/FR3053998A1/en
Application granted granted Critical
Publication of FR3053998B1 publication Critical patent/FR3053998B1/en
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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
    • F01D7/00—Rotors with blades adjustable in operation; Control thereof
    • 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
    • B64C11/30—Blade pitch-changing mechanisms
    • 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
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/36—Application in turbines specially adapted for the fan of turbofan engines
    • 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
    • F05D2240/00—Components
    • F05D2240/80—Platforms for stationary or moving blades
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/60—Efficient propulsion technologies, e.g. for aircraft

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)

Abstract

L'invention concerne une roue (12) de turbomachine (10), comprenant : - une virole (18) annulaire comportant une pluralité d'ouvertures (20) chacune délimitée par un bord (22) périphérique, - une aube (24) traversant une ouverture (20) de la virole (18) annulaire, et étant reliée à un dispositif (26) de calage angulaire de l'aube (24) autour d'un axe de pivotement, et - une plateforme (28) logée dans l'ouverture (20) et entourant l'aube (24), ladite plateforme (28) étant formée d'une pluralité de secteurs (28c, 28d) angulaires agencés circonférentiellement bout à bout autour de l'axe de pivotement de l'aube (24), - des moyens (30) de liaison des secteurs (28c, 28d) de plateforme (28) au dispositif (26) de calage angulaire de l'aube (24) de manière à ce qu'un pivotement de l'aube (24) entraine une rotation des secteurs (28c, 28d) de plateformes (28) autour dudit axe de pivotement.The invention relates to a turbine engine wheel (12), comprising: - an annular ferrule (18) comprising a plurality of openings (20) each delimited by a peripheral edge (22), - a blade (24) passing through an opening (20) of the annular ferrule (18), and being connected to a device (26) for angular setting of the blade (24) around a pivot axis, and - a platform (28) housed in the opening (20) and surrounding the blade (24), said platform (28) being formed of a plurality of angular sectors (28c, 28d) arranged circumferentially end to end around the pivot axis of the blade ( 24), - means (30) for connecting the sectors (28c, 28d) of the platform (28) to the device (26) for angular setting of the blade (24) so that a pivoting of the blade (24) causes the sectors (28c, 28d) of platforms (28) to rotate about said pivot axis.

FR1656691A 2016-07-12 2016-07-12 TURBOMACHINE WHEEL Active FR3053998B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1656691A FR3053998B1 (en) 2016-07-12 2016-07-12 TURBOMACHINE WHEEL

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1656691 2016-07-12
FR1656691A FR3053998B1 (en) 2016-07-12 2016-07-12 TURBOMACHINE WHEEL

Publications (2)

Publication Number Publication Date
FR3053998A1 FR3053998A1 (en) 2018-01-19
FR3053998B1 true FR3053998B1 (en) 2020-03-06

Family

ID=57539338

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1656691A Active FR3053998B1 (en) 2016-07-12 2016-07-12 TURBOMACHINE WHEEL

Country Status (1)

Country Link
FR (1) FR3053998B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3100563B1 (en) * 2019-09-06 2021-08-06 Safran Aircraft Engines Polyspherical turbomachine hub for variable pitch blades

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2831225B1 (en) * 2001-10-24 2004-01-02 Snecma Moteurs ELECTROHYDRAULIC DEVICE FOR CHANGING PROPELLER PITCH
FR2964943B1 (en) * 2010-09-20 2012-10-05 Snecma DEVICE FOR SEALING A HOUSING FOR THE CROSSING CROSS BY A CONNECTING ROD OF A CONTROL SYSTEM FOR ORIENTATION OF BLOWER BLADES OF A TURBOPROPULSOR

Also Published As

Publication number Publication date
FR3053998A1 (en) 2018-01-19

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