FR3060525B1 - ELECTROMECHANICAL PITCH ACTUATION SYSTEM FOR A TURBOMACHINE PROPELLER - Google Patents

ELECTROMECHANICAL PITCH ACTUATION SYSTEM FOR A TURBOMACHINE PROPELLER Download PDF

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Publication number
FR3060525B1
FR3060525B1 FR1662962A FR1662962A FR3060525B1 FR 3060525 B1 FR3060525 B1 FR 3060525B1 FR 1662962 A FR1662962 A FR 1662962A FR 1662962 A FR1662962 A FR 1662962A FR 3060525 B1 FR3060525 B1 FR 3060525B1
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France
Prior art keywords
rotation
blades
pitch
propeller
transmission screw
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Active
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FR1662962A
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French (fr)
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FR3060525A1 (en
Inventor
Wergifosse Huguette De
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
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Application filed by Safran Aircraft Engines SAS filed Critical Safran Aircraft Engines SAS
Priority to FR1662962A priority Critical patent/FR3060525B1/en
Publication of FR3060525A1 publication Critical patent/FR3060525A1/en
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Publication of FR3060525B1 publication Critical patent/FR3060525B1/en
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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
    • B64C11/30—Blade pitch-changing mechanisms
    • B64C11/44—Blade pitch-changing mechanisms electric

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

Abstract

Système (22) d'actionnement de pas pour une hélice (10) de turbomachine, comprenant un actionneur (24) dont une partie mobile (26) est configurée pour être reliée à des pales (14) de l'hélice en vue de les déplacer en rotation par rapport aux axes (B) de calage de pas des pales, caractérisé en ce que l'actionneur est un actionneur électromécanique, en ce qu'il comprend : - une vis de transmission (26) mobile en rotation et en translation le long d'un axe longitudinal (A), un écrou (28) traversé par ladite vis de transmission et coopérant avec cette vis afin de se déplacer en translation le long de l'axe (A) en vue de modifier le pas des pales de l'hélice et des moyens de découplage ((80, 82, 83, 84, 87) entre la rotation de l'hélice et ledit écrou, fixe en rotation, - des premiers moyens (25) de contrôle de pas des pales, qui comportent au moins un moteur électrique (40a, 40b) d'entraînement configuré pour entraîner la vis de transmission en rotation et en translation, - des moyens de blocage de la rotation de la vis de transmission configurés pour la bloquer en rotation lorsque les premiers moyens de contrôle de pas des pâles fonctionnent et la libérer en rotation lorsque des seconds moyens (50) de mise en drapeau des pales fonctionnent.Pitch actuation system (22) for a turbine engine propeller (10), comprising an actuator (24) of which a movable part (26) is configured to be connected to the blades (14) of the propeller in order to move in rotation with respect to the axes (B) for setting the pitch of the blades, characterized in that the actuator is an electromechanical actuator, in that it comprises: - a transmission screw (26) movable in rotation and in translation along a longitudinal axis (A), a nut (28) through which said transmission screw passes and cooperating with this screw in order to move in translation along the axis (A) in order to modify the pitch of the blades the propeller and decoupling means ((80, 82, 83, 84, 87) between the rotation of the propeller and said nut, fixed in rotation, - first means (25) for controlling the pitch of the blades, which comprise at least one electric drive motor (40a, 40b) configured to drive the transmission screw in rotation and in translation, - means for locking the rotation of the transmission screw configured to lock it in rotation when the first means for controlling the pitch of the blades operate and release it in rotation when the second means (50) for feathering the blades operate.

FR1662962A 2016-12-21 2016-12-21 ELECTROMECHANICAL PITCH ACTUATION SYSTEM FOR A TURBOMACHINE PROPELLER Active FR3060525B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1662962A FR3060525B1 (en) 2016-12-21 2016-12-21 ELECTROMECHANICAL PITCH ACTUATION SYSTEM FOR A TURBOMACHINE PROPELLER

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1662962A FR3060525B1 (en) 2016-12-21 2016-12-21 ELECTROMECHANICAL PITCH ACTUATION SYSTEM FOR A TURBOMACHINE PROPELLER
FR1662962 2016-12-21

Publications (2)

Publication Number Publication Date
FR3060525A1 FR3060525A1 (en) 2018-06-22
FR3060525B1 true FR3060525B1 (en) 2022-03-11

Family

ID=59031004

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1662962A Active FR3060525B1 (en) 2016-12-21 2016-12-21 ELECTROMECHANICAL PITCH ACTUATION SYSTEM FOR A TURBOMACHINE PROPELLER

Country Status (1)

Country Link
FR (1) FR3060525B1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2924281A (en) * 1953-06-11 1960-02-09 Curtiss Wright Corp Mechanical automatic propeller feathering
US4591313A (en) * 1983-12-30 1986-05-27 The Boeing Company Propeller pitch control system and apparatus
US5199850A (en) * 1991-07-31 1993-04-06 United Technologies Corporation Pitch stop assembly for variable pitch propulsor
GB201007567D0 (en) * 2010-05-06 2010-06-23 Rolls Royce Plc BAck-up featherer
FR2983235B1 (en) * 2011-11-24 2018-04-13 Safran Electrical & Power ROTATING MECHANICAL SYSTEM WITH CONTACTLESS ACTUATION

Also Published As

Publication number Publication date
FR3060525A1 (en) 2018-06-22

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