FR2366990A1 - Tete de rotor pour rotor sans articulation de battement et de trainee - Google Patents

Tete de rotor pour rotor sans articulation de battement et de trainee

Info

Publication number
FR2366990A1
FR2366990A1 FR7730119A FR7730119A FR2366990A1 FR 2366990 A1 FR2366990 A1 FR 2366990A1 FR 7730119 A FR7730119 A FR 7730119A FR 7730119 A FR7730119 A FR 7730119A FR 2366990 A1 FR2366990 A1 FR 2366990A1
Authority
FR
France
Prior art keywords
rotor
blades
head
drag joint
drag
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.)
Granted
Application number
FR7730119A
Other languages
English (en)
French (fr)
Other versions
FR2366990B1 (enExample
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 Defence and Space GmbH
Original Assignee
Messerschmitt Bolkow Blohm AG
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 Messerschmitt Bolkow Blohm AG filed Critical Messerschmitt Bolkow Blohm AG
Publication of FR2366990A1 publication Critical patent/FR2366990A1/fr
Application granted granted Critical
Publication of FR2366990B1 publication Critical patent/FR2366990B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/32—Rotors
    • B64C27/37—Rotors having articulated joints
    • B64C27/45—Rotors having articulated joints with a feathering hinge only
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Wind Motors (AREA)
FR7730119A 1976-10-07 1977-10-06 Tete de rotor pour rotor sans articulation de battement et de trainee Granted FR2366990A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2645174A DE2645174C2 (de) 1976-10-07 1976-10-07 Rotorkopf für einen schlag- und schwenkgelenklosen Rotor

Publications (2)

Publication Number Publication Date
FR2366990A1 true FR2366990A1 (fr) 1978-05-05
FR2366990B1 FR2366990B1 (enExample) 1983-07-29

Family

ID=5989852

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7730119A Granted FR2366990A1 (fr) 1976-10-07 1977-10-06 Tete de rotor pour rotor sans articulation de battement et de trainee

Country Status (6)

Country Link
US (1) US4182597A (enExample)
JP (1) JPS5347698A (enExample)
DE (1) DE2645174C2 (enExample)
FR (1) FR2366990A1 (enExample)
GB (1) GB1584099A (enExample)
IT (1) IT1087567B (enExample)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2758086C2 (de) * 1977-12-24 1983-12-01 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Rotor für ein Drehflügelflugzeug mit gelenklosem Blattanschluß
US4307996A (en) * 1978-11-16 1981-12-29 Westland Aircraft Limited Helicopter rotors
DE2917301C3 (de) * 1979-04-28 1981-12-17 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Schlag-, schwenk- und blattverstellgelenkloser Rotor
DE3032443C2 (de) * 1980-08-28 1982-08-12 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Bauelement mit einem Anschlußbereich mit versetzt angeordneten Bolzenaugen
US4564336A (en) * 1982-03-15 1986-01-14 Hughes Helicopters, Inc. Low drag, bearingless rotor head for helicopters
US4541777A (en) * 1982-03-15 1985-09-17 Hughes Helicopters, Inc. Low drag, bearingless rotor head for helicopters
DE3367371D1 (en) * 1982-03-18 1986-12-11 Westland Plc Helicopter rotors
US4650401A (en) * 1983-04-07 1987-03-17 Mcdonnell Douglas Helicopter Company Flat strap cruciform flexure for helicopter rotor systems
US4695227A (en) * 1985-02-27 1987-09-22 Hughes Helicopters Inc. All composite, constant speed universal joint for use in a shaft driven tiltable main rotor for a helicopter
EP0221678B1 (en) * 1985-10-15 1990-03-07 Westland Group plc Helicopter rotor
US4874292A (en) * 1988-11-18 1989-10-17 The United States Of America As Represented By The Secretary Of The Army Apparatus for damping helicopter rotor blade oscillations
DE19701403C1 (de) * 1997-01-17 1998-02-26 Eurocopter Deutschland Mehrblattrotor für ein Drehflügelflugzeug
US7665969B2 (en) * 2005-01-24 2010-02-23 Bell Helicopter Textron Inc. Assembly for providing flexure to blade system
US7401457B2 (en) * 2005-08-01 2008-07-22 Cnh America Llc Auger finger with tether for retaining and retracting the finger when broken
CA2707005A1 (en) * 2007-06-04 2008-12-11 Lord Corporation Retention device for separating combine auger finger materials and agricultural material engagement method
CA3004054C (en) 2017-05-05 2024-02-13 Laflamme Aero Inc. Helicopter rotor hub assembly and helicopter including same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2077891A2 (enExample) * 1970-02-23 1971-11-05 Scemm

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2845131A (en) * 1953-06-11 1958-07-29 Sncaso Rotor arrangement for rotary wing aircraft
DE1506574A1 (de) * 1967-05-22 1970-04-02 Aeronautische Giovanni Agusta Nabe fuer mechanisch angetriebene Hubschrauber
US3384185A (en) * 1967-06-02 1968-05-21 Aerojet General Co Rotor hubs
FR1568117A (enExample) * 1968-02-12 1969-05-23
FR2041747A1 (enExample) * 1969-05-20 1971-02-05 Sud Aviation
US3874815A (en) * 1973-11-15 1975-04-01 Boeing Co Rotary head assembly for rotary wing aircraft
US3880551A (en) * 1973-11-15 1975-04-29 Boeing Co Rotary head assembly for rotary wing aircraft
US4008980A (en) * 1975-06-26 1977-02-22 United Technologies Corporation Composite helicopter spar and means to alleviate stress concentration
US3999887A (en) * 1975-07-09 1976-12-28 Lord Corporation Propeller assembly
US4047839A (en) * 1976-05-28 1977-09-13 United Technologies Corporation Torque reacting means for the hubs of cross beam rotors

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2077891A2 (enExample) * 1970-02-23 1971-11-05 Scemm

Also Published As

Publication number Publication date
JPS5347698A (en) 1978-04-28
IT1087567B (it) 1985-06-04
US4182597A (en) 1980-01-08
DE2645174C2 (de) 1982-08-12
GB1584099A (en) 1981-02-04
DE2645174A1 (de) 1978-04-13
FR2366990B1 (enExample) 1983-07-29

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Legal Events

Date Code Title Description
ST Notification of lapse