FR3120650B1 - AIRCRAFT TURBOMACHINE COMPRISING VARIABLE-PITCHED PROPELLER BLADE - Google Patents

AIRCRAFT TURBOMACHINE COMPRISING VARIABLE-PITCHED PROPELLER BLADE Download PDF

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Publication number
FR3120650B1
FR3120650B1 FR2102546A FR2102546A FR3120650B1 FR 3120650 B1 FR3120650 B1 FR 3120650B1 FR 2102546 A FR2102546 A FR 2102546A FR 2102546 A FR2102546 A FR 2102546A FR 3120650 B1 FR3120650 B1 FR 3120650B1
Authority
FR
France
Prior art keywords
bowl
blade
propeller blade
variable
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
FR2102546A
Other languages
French (fr)
Other versions
FR3120650A1 (en
Inventor
Clément Cottet
Vivien Mickaël Courtier
Vincent Joudon
Arnaud Langlois
Régis Eugène Henri Servant
Laurent Jablonski
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 FR2102546A priority Critical patent/FR3120650B1/en
Priority to PCT/FR2021/051312 priority patent/WO2022018355A1/en
Priority to EP21755006.0A priority patent/EP4185521A1/en
Priority to US18/006,128 priority patent/US11873076B2/en
Priority to CN202180051271.8A priority patent/CN115885109A/en
Publication of FR3120650A1 publication Critical patent/FR3120650A1/en
Application granted granted Critical
Publication of FR3120650B1 publication Critical patent/FR3120650B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/16—Blades
    • B64C11/20—Constructional features
    • B64C11/26—Fabricated blades
    • 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/64—Mounting; Assembling; Disassembling of axial pumps
    • F04D29/644—Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps

Landscapes

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

Abstract

L'invention concerne un ensemble comportant une aube (10) d'hélice et un système (34) de calage angulaire de l'aube (10), un pied (14) de l'aube (10) présentant un bulbe (32), le système (34) de calage angulaire de l'aube (10) comportant : - un bol (58) comportant une ouverture (58c) supérieure ; - une couronne (82) de rétention qui s'étend autour du bulbe (32), qui est au moins limitée en déplacement axial vers l'ouverture (58c) par rapport au bol (58), et qui présente une face (84) de portée pour bloquer le déplacement axial du pied (14) vers l'ouverture (58c) ; caractérisé en ce qu'il comporte un siège (88) inférieur par l'intermédiaire duquel le pied (14) est en appui dans le bol (58), le siège (88) et/ou la couronne (82) de rétention étant monté mobile en translation axiale par rapport au bol (58) par l'intermédiaire d'au moins un mécanisme (90) de serrage. Figure pour l'abrégé : Figure 4The invention relates to an assembly comprising a propeller blade (10) and a system (34) for angular setting of the blade (10), a root (14) of the blade (10) having a bulb (32) , the system (34) for angularly setting the blade (10) comprising: - a bowl (58) comprising an upper opening (58c); - a retaining ring (82) which extends around the bulb (32), which is at least limited in axial displacement towards the opening (58c) relative to the bowl (58), and which has a face (84) span to block axial movement of the foot (14) towards the opening (58c); characterized in that it comprises a lower seat (88) through which the foot (14) bears in the bowl (58), the seat (88) and/or the retention crown (82) being mounted movable in axial translation relative to the bowl (58) via at least one clamping mechanism (90). Figure for abstract: Figure 4

FR2102546A 2020-07-24 2021-03-15 AIRCRAFT TURBOMACHINE COMPRISING VARIABLE-PITCHED PROPELLER BLADE Active FR3120650B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR2102546A FR3120650B1 (en) 2021-03-15 2021-03-15 AIRCRAFT TURBOMACHINE COMPRISING VARIABLE-PITCHED PROPELLER BLADE
PCT/FR2021/051312 WO2022018355A1 (en) 2020-07-24 2021-07-15 Aircraft turbine engine comprising variable-pitch propeller blades
EP21755006.0A EP4185521A1 (en) 2020-07-24 2021-07-15 Aircraft turbine engine comprising variable-pitch propeller blades
US18/006,128 US11873076B2 (en) 2020-07-24 2021-07-15 Aircraft turbine engine comprising variable pitch propeller blades
CN202180051271.8A CN115885109A (en) 2020-07-24 2021-07-15 Aircraft turbine engine including variable pitch propeller blades

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2102546A FR3120650B1 (en) 2021-03-15 2021-03-15 AIRCRAFT TURBOMACHINE COMPRISING VARIABLE-PITCHED PROPELLER BLADE
FR2102546 2021-03-15

Publications (2)

Publication Number Publication Date
FR3120650A1 FR3120650A1 (en) 2022-09-16
FR3120650B1 true FR3120650B1 (en) 2023-02-10

Family

ID=75539615

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2102546A Active FR3120650B1 (en) 2020-07-24 2021-03-15 AIRCRAFT TURBOMACHINE COMPRISING VARIABLE-PITCHED PROPELLER BLADE

Country Status (1)

Country Link
FR (1) FR3120650B1 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3005683B1 (en) * 2013-05-17 2017-08-18 Snecma PROPELLER BLADE NOT CARRIED FOR A TURBOMACHINE
US10717516B2 (en) * 2017-04-10 2020-07-21 Rotating Composite Technologies, Llc Composite propulsor blade support structure and system

Also Published As

Publication number Publication date
FR3120650A1 (en) 2022-09-16

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