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FR2893001B1 - Amelioration aux rotors de giravions a pales torsibles. - Google Patents

Amelioration aux rotors de giravions a pales torsibles.

Info

Publication number
FR2893001B1
FR2893001B1 FR0511225A FR0511225A FR2893001B1 FR 2893001 B1 FR2893001 B1 FR 2893001B1 FR 0511225 A FR0511225 A FR 0511225A FR 0511225 A FR0511225 A FR 0511225A FR 2893001 B1 FR2893001 B1 FR 2893001B1
Authority
FR
France
Prior art keywords
giravions
torsible
rotors
blades
improvement
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
FR0511225A
Other languages
English (en)
Other versions
FR2893001A1 (fr
Inventor
Gilbert Mestre
Guy Cruveiller
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 FR0511225A priority Critical patent/FR2893001B1/fr
Priority to US11/589,950 priority patent/US7604460B2/en
Publication of FR2893001A1 publication Critical patent/FR2893001A1/fr
Application granted granted Critical
Publication of FR2893001B1 publication Critical patent/FR2893001B1/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
    • B64C27/46—Blades
    • B64C27/473—Constructional features
    • B64C27/48—Root attachment to rotor head
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/32—Rotors
    • B64C27/33—Rotors having flexing arms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/82—Rotorcraft; Rotors peculiar thereto characterised by the provision of an auxiliary rotor or fluid-jet device for counter-balancing lifting rotor torque or changing direction of rotorcraft

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Bolts, Nuts, And Washers (AREA)
  • Connection Of Plates (AREA)
FR0511225A 2005-11-04 2005-11-04 Amelioration aux rotors de giravions a pales torsibles. Expired - Fee Related FR2893001B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR0511225A FR2893001B1 (fr) 2005-11-04 2005-11-04 Amelioration aux rotors de giravions a pales torsibles.
US11/589,950 US7604460B2 (en) 2005-11-04 2006-10-31 Rotorcraft rotors having twistable blades

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0511225A FR2893001B1 (fr) 2005-11-04 2005-11-04 Amelioration aux rotors de giravions a pales torsibles.

Publications (2)

Publication Number Publication Date
FR2893001A1 FR2893001A1 (fr) 2007-05-11
FR2893001B1 true FR2893001B1 (fr) 2009-04-24

Family

ID=36691591

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0511225A Expired - Fee Related FR2893001B1 (fr) 2005-11-04 2005-11-04 Amelioration aux rotors de giravions a pales torsibles.

Country Status (2)

Country Link
US (1) US7604460B2 (fr)
FR (1) FR2893001B1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112017008269A5 (de) * 2017-12-13 2020-08-20 Ole Bettray Fixiereinrichtung für verbindungsmittel mit einem mehrkantkopf
CH717386A1 (de) 2020-05-06 2021-11-15 Kopter Group Ag Lösbare Verbindung zwischen einem Blattsteuereinheitsarm und einem Blattverstellhebel.
US12104641B2 (en) * 2020-06-23 2024-10-01 InSitu, Inc., a subsidiary of the Boeing Company Retention washers, propeller retention systems, and related methods

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US175427A (en) * 1876-03-28 Improvement in nut-locks
US595775A (en) * 1897-12-21 Bolt-lock for railways
US625122A (en) * 1899-05-16 Nut-lock
US492722A (en) * 1893-02-28 Nut-lock
US630117A (en) * 1899-04-17 1899-08-01 John Saur Nut-lock.
US856246A (en) * 1906-09-12 1907-06-11 Neptune Meter Co Nut-ring.
US2372416A (en) * 1940-12-19 1945-03-27 Rotol Ltd Variable-pitch airscrew
US2469441A (en) * 1945-03-06 1949-05-10 Wright Aeronautical Corp Locking plate
FR1531536A (fr) * 1967-05-22 1968-07-05 Sud Aviation Hélice ou rotor à pas variable
US4740124A (en) * 1981-12-28 1988-04-26 United Technologies Corporation Threaded insert
FR2542695B1 (fr) * 1983-03-18 1985-07-26 Aerospatiale Helice multipale a pas variable a pale s en materiaux composites demontables individuellement, procede de fabrication de telles pales et pales ainsi realisees
CA2042532C (fr) * 1990-05-30 2002-03-12 Francis E. Byrnes Joint longeron-moyen pour plaque de flexion (rotor) d'helicoptere
FR2699497B1 (fr) * 1992-12-23 1995-03-10 Eurocopter France Dispositif de liaison pale-moyeu à attache feuilletée, pale de rotor munie d'une telle attache, et rotor équipé de telles pales.
FR2719554B1 (fr) * 1994-05-04 1996-07-26 Eurocopter France Rotor anti-couple caréné à pales flottantes.
US20050201848A1 (en) * 2004-03-12 2005-09-15 Reilly Leonora M. Bolt assembly

Also Published As

Publication number Publication date
US7604460B2 (en) 2009-10-20
FR2893001A1 (fr) 2007-05-11
US20070104580A1 (en) 2007-05-10

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Legal Events

Date Code Title Description
CD Change of name or company name

Owner name: AIRBUS HELICOPTERS, FR

Effective date: 20140602

PLFP Fee payment

Year of fee payment: 11

PLFP Fee payment

Year of fee payment: 12

PLFP Fee payment

Year of fee payment: 13

PLFP Fee payment

Year of fee payment: 14

ST Notification of lapse

Effective date: 20200914