FR3053725B1 - AIRPLANE TURBOMACHINE WITH MOBILE BLADES IN BEATS AND STEPS - Google Patents

AIRPLANE TURBOMACHINE WITH MOBILE BLADES IN BEATS AND STEPS Download PDF

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Publication number
FR3053725B1
FR3053725B1 FR1656539A FR1656539A FR3053725B1 FR 3053725 B1 FR3053725 B1 FR 3053725B1 FR 1656539 A FR1656539 A FR 1656539A FR 1656539 A FR1656539 A FR 1656539A FR 3053725 B1 FR3053725 B1 FR 3053725B1
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FR
France
Prior art keywords
turbomachine
beats
airplane
steps
shaft
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
FR1656539A
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French (fr)
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FR3053725A1 (en
Inventor
Serge Benyamin
Nicolas Perron
Benjamin PETARD
Florian Poinsot-Berthelot
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
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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 FR1656539A priority Critical patent/FR3053725B1/en
Publication of FR3053725A1 publication Critical patent/FR3053725A1/en
Application granted granted Critical
Publication of FR3053725B1 publication Critical patent/FR3053725B1/en
Active 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
    • F01D7/00—Rotors with blades adjustable in operation; Control thereof
    • 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
    • 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
    • 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
    • F05D2260/00—Function
    • F05D2260/96—Preventing, counteracting or reducing vibration or noise

Abstract

L'invention concerne une turbomachine pour avion à décollage horizontal. La turbomachine comprend un rotor (20) comprenant un arbre (23) et des aubes mobiles (22, 25) en rotation autour de l'axe de rotation de l'arbre (3). L'arbre (23) porte au moins un disque (21) configuré pour maintenir les aubes (22, 25) à l'arbre (23). Selon l'invention, une pale (27) d'une première aube (22) est reliée mécaniquement au disque (21), en étant au moins mobile en rotation par rapport au disque (21) autour d'un premier axe (X-X) et autour d'un deuxième axe (Y-Y, Z-Z, R-R) incliné par rapport au premier axe (X-X).The invention relates to a turbomachine for aircraft with horizontal takeoff. The turbomachine comprises a rotor (20) comprising a shaft (23) and movable blades (22, 25) rotating around the axis of rotation of the shaft (3). The shaft (23) carries at least one disc (21) configured to hold the blades (22, 25) to the shaft (23). According to the invention, a blade (27) of a first blade (22) is mechanically connected to the disc (21), being at least movable in rotation relative to the disc (21) around a first axis (XX) and around a second axis (YY, ZZ, RR) inclined relative to the first axis (XX).

FR1656539A 2016-07-07 2016-07-07 AIRPLANE TURBOMACHINE WITH MOBILE BLADES IN BEATS AND STEPS Active FR3053725B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1656539A FR3053725B1 (en) 2016-07-07 2016-07-07 AIRPLANE TURBOMACHINE WITH MOBILE BLADES IN BEATS AND STEPS

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1656539A FR3053725B1 (en) 2016-07-07 2016-07-07 AIRPLANE TURBOMACHINE WITH MOBILE BLADES IN BEATS AND STEPS
FR1656539 2016-07-07

Publications (2)

Publication Number Publication Date
FR3053725A1 FR3053725A1 (en) 2018-01-12
FR3053725B1 true FR3053725B1 (en) 2020-04-24

Family

ID=57583172

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1656539A Active FR3053725B1 (en) 2016-07-07 2016-07-07 AIRPLANE TURBOMACHINE WITH MOBILE BLADES IN BEATS AND STEPS

Country Status (1)

Country Link
FR (1) FR3053725B1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB612461A (en) * 1946-05-24 1948-11-12 Bruno Jablonsky Improvements in and relating to airscrews
GB1430596A (en) * 1972-07-06 1976-03-31 Rolls Royce Multi-bladed fans
US4045149A (en) * 1976-02-03 1977-08-30 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Platform for a swing root turbomachinery blade
US5102300A (en) * 1988-10-07 1992-04-07 United Technologies Corporation Pinned airfoil propeller assembly
FR2996591B1 (en) * 2012-10-04 2018-09-21 Snecma BLADE SETTING DEVICE OF A TURBOMACHINE PROPELLER

Also Published As

Publication number Publication date
FR3053725A1 (en) 2018-01-12

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