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FR3117534B1 - Rotor de soufflante à aubes à calage variable. - Google Patents

Rotor de soufflante à aubes à calage variable. Download PDF

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Publication number
FR3117534B1
FR3117534B1 FR2013252A FR2013252A FR3117534B1 FR 3117534 B1 FR3117534 B1 FR 3117534B1 FR 2013252 A FR2013252 A FR 2013252A FR 2013252 A FR2013252 A FR 2013252A FR 3117534 B1 FR3117534 B1 FR 3117534B1
Authority
FR
France
Prior art keywords
wedge
rotor
fan rotor
variable pitch
pitch blades
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
FR2013252A
Other languages
English (en)
Other versions
FR3117534A1 (fr
Inventor
Clément Raphaël Laroche
Ulrich Vincent Max Dubois
Kévin Emilien André Minjot
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 FR2013252A priority Critical patent/FR3117534B1/fr
Publication of FR3117534A1 publication Critical patent/FR3117534A1/fr
Application granted granted Critical
Publication of FR3117534B1 publication Critical patent/FR3117534B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/16—Form or construction for counteracting blade vibration
    • 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
    • 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
    • F05D2250/00—Geometry
    • F05D2250/90—Variable geometry
    • 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)
  • Aviation & Aerospace Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

La présente invention concerne un rotor de soufflante à aubes à calage variable pour turbomachine, du type comprenant un disque de rotor muni à sa périphérie d'une pluralité de logements cylindriques de réception d'un pivot rotatif, chaque pivot comprenant une alvéole de réception du pied de l'une des aubes et d'une cale (2). Ce rotor est remarquable en ce que ladite cale (2) comprend un corps allongé (21) qui se prolonge à chacune de ses deux extrémités longitudinales par un étranglement (23) puis un organe de fixation (24) d'une masselotte (22) et en ce que ces deux masselottes (22) sont dimensionnées, conformées et fixées sur chaque organe de fixation de la cale (2) de façon à provoquer, lors de la rotation du rotor, la déformation des deux extrémités longitudinales de ladite cale (2) dans la direction radialement externe. Figure pour l’abrégé : Fig. 4
FR2013252A 2020-12-15 2020-12-15 Rotor de soufflante à aubes à calage variable. Active FR3117534B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2013252A FR3117534B1 (fr) 2020-12-15 2020-12-15 Rotor de soufflante à aubes à calage variable.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2013252 2020-12-15
FR2013252A FR3117534B1 (fr) 2020-12-15 2020-12-15 Rotor de soufflante à aubes à calage variable.

Publications (2)

Publication Number Publication Date
FR3117534A1 FR3117534A1 (fr) 2022-06-17
FR3117534B1 true FR3117534B1 (fr) 2022-11-11

Family

ID=74860093

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2013252A Active FR3117534B1 (fr) 2020-12-15 2020-12-15 Rotor de soufflante à aubes à calage variable.

Country Status (1)

Country Link
FR (1) FR3117534B1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5263898A (en) * 1988-12-14 1993-11-23 General Electric Company Propeller blade retention system
FR2996584A1 (fr) * 2012-10-10 2014-04-11 Snecma Cale pour pied de pale ajouree
FR3005683B1 (fr) * 2013-05-17 2017-08-18 Snecma Aube d'helice non carenee pour une turbomachine
FR3032941B1 (fr) * 2015-02-24 2017-03-10 Snecma Soufflante non carenee de turbomachine d'aeronef

Also Published As

Publication number Publication date
FR3117534A1 (fr) 2022-06-17

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