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FR3137062B1 - PITCH CHANGE MECHANISM WITH PITCH LOCKING DEVICE INCLUDING SATELLITE ROLLER SCREW - Google Patents

PITCH CHANGE MECHANISM WITH PITCH LOCKING DEVICE INCLUDING SATELLITE ROLLER SCREW Download PDF

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Publication number
FR3137062B1
FR3137062B1 FR2206140A FR2206140A FR3137062B1 FR 3137062 B1 FR3137062 B1 FR 3137062B1 FR 2206140 A FR2206140 A FR 2206140A FR 2206140 A FR2206140 A FR 2206140A FR 3137062 B1 FR3137062 B1 FR 3137062B1
Authority
FR
France
Prior art keywords
pitch
locking device
screw
change mechanism
support member
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
FR2206140A
Other languages
French (fr)
Other versions
FR3137062A1 (en
Inventor
Jean Charles Olivier Roda
Jérôme Paul Marceau Mace
Christophe Marcel Lucien Perdrigeon
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 FR2206140A priority Critical patent/FR3137062B1/en
Priority to FR2211295A priority patent/FR3137060B1/en
Priority to FR2211296A priority patent/FR3137061B1/en
Priority to PCT/FR2023/050944 priority patent/WO2023247907A1/en
Priority to PCT/FR2023/050943 priority patent/WO2023247906A1/en
Publication of FR3137062A1 publication Critical patent/FR3137062A1/en
Application granted granted Critical
Publication of FR3137062B1 publication Critical patent/FR3137062B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B64C11/38—Blade pitch-changing mechanisms fluid, e.g. hydraulic
    • 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
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
    • F16H25/2247—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with rollers
    • F16H25/2252—Planetary rollers between nut and screw
    • 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
    • F05D2220/32—Application in turbines in gas turbines
    • F05D2220/325—Application in turbines in gas turbines to drive unshrouded, high solidity propeller
    • 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
    • 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
    • F05D2260/50—Kinematic linkage, i.e. transmission of position
    • F05D2260/57—Kinematic linkage, i.e. transmission of position using servos, independent actuators, etc.
    • 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
    • F05D2260/70—Adjusting of angle of incidence or attack of rotating blades
    • F05D2260/79—Bearing, support or actuation arrangements therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transmission Devices (AREA)
  • Wind Motors (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

Ce mécanisme de changement de pas (70) comprend un bâti (72), un piston (110) mobile en translation suivant un axe longitudinal (X), et un dispositif de verrouillage (160). Le dispositif de verrouillage (160) comprend un organe de support (162), mobile en translation suivant l’axe longitudinal (X) entre une position de fonctionnement et une position de verrouillage, et un système vis-écrou (164). Le système vis-écrou (164) est formé par un système de vis à rouleaux satellites (195) comprenant une vis (176) solidaire en translation de l’organe de support (162) et montée mobile en rotation autour de l’axe longitudinal (X) et un écrou (178) solidaire du piston (110). La vis (176) présente une surface de butée (186) qui est à distance du bâti (72) lorsque l’organe de support (162) est en position de fonctionnement et en appui contre le bâti (72) lorsque l’organe de support (162) est en position de verrouillage. Figure pour l’abrégé : Fig. 3This pitch change mechanism (70) comprises a frame (72), a piston (110) movable in translation along a longitudinal axis (X), and a locking device (160). The locking device (160) comprises a support member (162), movable in translation along the longitudinal axis (X) between an operating position and a locking position, and a screw-nut system (164). The screw-nut system (164) is formed by a system of satellite roller screws (195) comprising a screw (176) integral in translation with the support member (162) and mounted movable in rotation around the longitudinal axis (X) and a nut (178) secured to the piston (110). The screw (176) has a stop surface (186) which is at a distance from the frame (72) when the support member (162) is in the operating position and resting against the frame (72) when the support member support (162) is in the locked position. Figure for abstract: Fig. 3

FR2206140A 2022-06-22 2022-06-22 PITCH CHANGE MECHANISM WITH PITCH LOCKING DEVICE INCLUDING SATELLITE ROLLER SCREW Active FR3137062B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR2206140A FR3137062B1 (en) 2022-06-22 2022-06-22 PITCH CHANGE MECHANISM WITH PITCH LOCKING DEVICE INCLUDING SATELLITE ROLLER SCREW
FR2211295A FR3137060B1 (en) 2022-06-22 2022-10-28 Pitch change mechanism with actuator surrounding a fluid transfer bearing
FR2211296A FR3137061B1 (en) 2022-06-22 2022-10-28 Pitch change mechanism with pitch locking device including satellite roller screw
PCT/FR2023/050944 WO2023247907A1 (en) 2022-06-22 2023-06-22 Pitch-change mechanism with pitch-locking device comprising a satellite roller screw
PCT/FR2023/050943 WO2023247906A1 (en) 2022-06-22 2023-06-22 Pitch change mechanism with cylinder enclosing a fluid transfer bearing

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2206140 2022-06-22
FR2206140A FR3137062B1 (en) 2022-06-22 2022-06-22 PITCH CHANGE MECHANISM WITH PITCH LOCKING DEVICE INCLUDING SATELLITE ROLLER SCREW

Publications (2)

Publication Number Publication Date
FR3137062A1 FR3137062A1 (en) 2023-12-29
FR3137062B1 true FR3137062B1 (en) 2024-05-17

Family

ID=82942597

Family Applications (3)

Application Number Title Priority Date Filing Date
FR2206140A Active FR3137062B1 (en) 2022-06-22 2022-06-22 PITCH CHANGE MECHANISM WITH PITCH LOCKING DEVICE INCLUDING SATELLITE ROLLER SCREW
FR2211296A Active FR3137061B1 (en) 2022-06-22 2022-10-28 Pitch change mechanism with pitch locking device including satellite roller screw
FR2211295A Active FR3137060B1 (en) 2022-06-22 2022-10-28 Pitch change mechanism with actuator surrounding a fluid transfer bearing

Family Applications After (2)

Application Number Title Priority Date Filing Date
FR2211296A Active FR3137061B1 (en) 2022-06-22 2022-10-28 Pitch change mechanism with pitch locking device including satellite roller screw
FR2211295A Active FR3137060B1 (en) 2022-06-22 2022-10-28 Pitch change mechanism with actuator surrounding a fluid transfer bearing

Country Status (1)

Country Link
FR (3) FR3137062B1 (en)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4576057A (en) 1984-06-13 1986-03-18 Illinois Tool Works Inc. Anti-friction nut/screw drive
US4753572A (en) * 1986-10-02 1988-06-28 United Technologies Corporation Propeller pitch change actuation system
CH669244A5 (en) 1986-12-23 1989-02-28 Bernard Duruisseau RECIRCULATED SATELLITE ROLLER SCREWS.
US5557154A (en) 1991-10-11 1996-09-17 Exlar Corporation Linear actuator with feedback position sensor device
US8545178B2 (en) 2006-03-08 2013-10-01 Hamilton Sundstrand Corporation Controlled propeller pitch lock actuation system
US8235667B2 (en) * 2008-12-12 2012-08-07 Karem Aircraft, Inc. Swashplateless rotorcraft with fault tolerant linear electric actuator
FR2941493B1 (en) 2009-01-23 2011-08-26 Snecma FREE TURBINE TURBINE ENGINE THAT ENABLES AN ELECTRIC POWER GENERATOR
SE540395C2 (en) * 2012-10-12 2018-09-11 Novoscen Ab Gravity-relieved actuator for fine control when lifting loads
PL226824B1 (en) * 2015-09-07 2017-09-29 Gen Electric Method and system for an airscrew pitch adjustment
FR3046408B1 (en) 2016-01-05 2018-02-09 Safran Aircraft Engines DEVICE FOR LOCKING THE FLAGS AND FLOWING BLADES OF REGULATLY ORIENTED BLOWER BLADES OF A TURBOMACHINE PROPELLER
FR3098267A1 (en) * 2019-07-05 2021-01-08 Maateeecs Consulting ASYMMETRIC-TOOTHED SATELLITE ROLLER SCREWS

Also Published As

Publication number Publication date
FR3137061B1 (en) 2024-05-24
FR3137061A1 (en) 2023-12-29
FR3137060B1 (en) 2024-05-24
FR3137060A1 (en) 2023-12-29
FR3137062A1 (en) 2023-12-29

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