FR2890936B1 - Procede et dispositif de blocage en pas d'une pale repliable d'un rotor de giravion - Google Patents

Procede et dispositif de blocage en pas d'une pale repliable d'un rotor de giravion

Info

Publication number
FR2890936B1
FR2890936B1 FR0509535A FR0509535A FR2890936B1 FR 2890936 B1 FR2890936 B1 FR 2890936B1 FR 0509535 A FR0509535 A FR 0509535A FR 0509535 A FR0509535 A FR 0509535A FR 2890936 B1 FR2890936 B1 FR 2890936B1
Authority
FR
France
Prior art keywords
giravion
rotor
locking
folding blade
folding
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.)
Expired - Fee Related
Application number
FR0509535A
Other languages
English (en)
Other versions
FR2890936A1 (fr
Inventor
Nicolas Certain
Christophe Perrin
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.)
Airbus Helicopters SAS
Original Assignee
Eurocopter France SA
Eurocopter SA
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 Eurocopter France SA, Eurocopter SA filed Critical Eurocopter France SA
Priority to FR0509535A priority Critical patent/FR2890936B1/fr
Priority to US11/522,453 priority patent/US7530786B2/en
Publication of FR2890936A1 publication Critical patent/FR2890936A1/fr
Application granted granted Critical
Publication of FR2890936B1 publication Critical patent/FR2890936B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/32—Rotors
    • B64C27/322—Blade travel limiting devices, e.g. droop stops
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/32—Rotors
    • B64C27/46—Blades
    • B64C27/473—Constructional features
    • B64C27/50—Blades foldable to facilitate stowage of aircraft

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Harvester Elements (AREA)
FR0509535A 2005-09-19 2005-09-19 Procede et dispositif de blocage en pas d'une pale repliable d'un rotor de giravion Expired - Fee Related FR2890936B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR0509535A FR2890936B1 (fr) 2005-09-19 2005-09-19 Procede et dispositif de blocage en pas d'une pale repliable d'un rotor de giravion
US11/522,453 US7530786B2 (en) 2005-09-19 2006-09-18 Method and a device for blocking the pitch of a foldable blade of a rotorcraft rotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0509535A FR2890936B1 (fr) 2005-09-19 2005-09-19 Procede et dispositif de blocage en pas d'une pale repliable d'un rotor de giravion

Publications (2)

Publication Number Publication Date
FR2890936A1 FR2890936A1 (fr) 2007-03-23
FR2890936B1 true FR2890936B1 (fr) 2009-04-24

Family

ID=36601205

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0509535A Expired - Fee Related FR2890936B1 (fr) 2005-09-19 2005-09-19 Procede et dispositif de blocage en pas d'une pale repliable d'un rotor de giravion

Country Status (2)

Country Link
US (1) US7530786B2 (fr)
FR (1) FR2890936B1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2818407B1 (fr) * 2013-06-24 2016-12-21 AIRBUS HELICOPTERS DEUTSCHLAND GmbH Système de rotor d'un hélicoptère
US9656744B2 (en) * 2014-05-21 2017-05-23 Bell Helicopter Textron Inc. Adjustable blade-to-hub lead-lag damper attachment
CN109606662B (zh) * 2018-12-11 2021-09-21 南京多基观测技术研究院有限公司 一种可折的四旋翼无人机

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3097701A (en) * 1960-10-27 1963-07-16 United Aircraft Corp Blade folding mechanism
US3187818A (en) * 1964-12-31 1965-06-08 Boeing Co Blade folding mechanism
US3874817A (en) * 1973-11-01 1975-04-01 United Aircraft Corp Apparatus for folding blades without changing pitch due to folding
EP0057053A1 (fr) * 1981-01-22 1982-08-04 WESTLAND plc Rotor d'hélicoptère
US4738592A (en) * 1984-09-28 1988-04-19 The Boeing Company Cam assisted blade folding system
US5322415A (en) * 1992-11-18 1994-06-21 United Technologies Corporation Pitch actuation system restraint device for a helicopter blade folding system
FR2754779B1 (fr) * 1996-10-22 1998-12-31 Eurocopter France Procede de repliage des pales d'un rotor principal de giravion et dispositif de mise en oeuvre
FR2765188B1 (fr) * 1997-06-30 1999-09-17 Eurocopter France Dispositif pour le repliage d'une pale de rotor de giravion

Also Published As

Publication number Publication date
US20070065284A1 (en) 2007-03-22
FR2890936A1 (fr) 2007-03-23
US7530786B2 (en) 2009-05-12

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Legal Events

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Owner name: AIRBUS HELICOPTERS, FR

Effective date: 20140602

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PLFP Fee payment

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PLFP Fee payment

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Effective date: 20210506