DE2756071C2 - - Google Patents

Info

Publication number
DE2756071C2
DE2756071C2 DE2756071A DE2756071A DE2756071C2 DE 2756071 C2 DE2756071 C2 DE 2756071C2 DE 2756071 A DE2756071 A DE 2756071A DE 2756071 A DE2756071 A DE 2756071A DE 2756071 C2 DE2756071 C2 DE 2756071C2
Authority
DE
Germany
Prior art keywords
rotor
rotor blade
support elements
head
connection according
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
Application number
DE2756071A
Other languages
German (de)
English (en)
Other versions
DE2756071A1 (de
Inventor
Stephan Downingtown Pa. Us Roman
Richard J. Aston Pa. Us Spitko
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.)
Boeing Co
Original Assignee
Boeing Co
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 Boeing Co filed Critical Boeing Co
Publication of DE2756071A1 publication Critical patent/DE2756071A1/de
Application granted granted Critical
Publication of DE2756071C2 publication Critical patent/DE2756071C2/de
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
    • B64C27/33—Rotors having flexing arms
    • 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
    • B64C27/41—Rotors having articulated joints with flapping hinge or universal joint, common to the blades
    • B64C27/43—Rotors having articulated joints with flapping hinge or universal joint, common to the blades see-saw type, i.e. two-bladed rotor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Wind Motors (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
DE19772756071 1976-12-16 1977-12-16 Zusammengesetzte nabe eines gelenklosen rotors fuer ein rotorflugzeug Granted DE2756071A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/751,121 US4111605A (en) 1976-12-16 1976-12-16 Composite hingeless rotor hub for rotary wing aircraft

Publications (2)

Publication Number Publication Date
DE2756071A1 DE2756071A1 (de) 1978-07-06
DE2756071C2 true DE2756071C2 (US08080257-20111220-C00005.png) 1988-05-11

Family

ID=25020565

Family Applications (2)

Application Number Title Priority Date Filing Date
DE7738352U Expired DE7738352U1 (de) 1976-12-16 1977-12-16 Rotorblattanschluß
DE19772756071 Granted DE2756071A1 (de) 1976-12-16 1977-12-16 Zusammengesetzte nabe eines gelenklosen rotors fuer ein rotorflugzeug

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE7738352U Expired DE7738352U1 (de) 1976-12-16 1977-12-16 Rotorblattanschluß

Country Status (5)

Country Link
US (1) US4111605A (US08080257-20111220-C00005.png)
JP (2) JPS5396197A (US08080257-20111220-C00005.png)
DE (2) DE7738352U1 (US08080257-20111220-C00005.png)
FR (1) FR2374212A1 (US08080257-20111220-C00005.png)
GB (1) GB1573689A (US08080257-20111220-C00005.png)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4266912A (en) * 1978-10-06 1981-05-12 Stephan Roman Rotor blade support setup for rotary wing aircraft
US4307996A (en) * 1978-11-16 1981-12-29 Westland Aircraft Limited Helicopter rotors
US4316700A (en) * 1979-04-03 1982-02-23 Schramm Burford J Unitary, bonded-together helicopter rotorblade
US4403918A (en) * 1979-04-03 1983-09-13 Schramm Buford J Hubless, hingeless and bearingless helicopter rotor system
DE2917301C3 (de) * 1979-04-28 1981-12-17 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Schlag-, schwenk- und blattverstellgelenkloser Rotor
DE2919684C3 (de) * 1979-05-16 1981-12-24 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Schlag-, schwenk-und blattverstellgelenkloser Rotor
DE2932441C2 (de) * 1979-08-10 1983-10-06 Messerschmitt-Boelkow-Blohm Gmbh, 8000 Muenchen Dämpfungseinrichtung für ein Rotorblatt
US4349317A (en) * 1979-11-02 1982-09-14 The Boeing Company Bearingless rotor for single and tandem helicopters
DE3104682C2 (de) * 1981-02-10 1986-09-25 Stephan Shelton Conn. Roman Schlag- und schwenkgelenkloser Rotor für Drehflügelflugzeuge
DE3123082A1 (de) * 1981-06-11 1982-12-30 Messerschmitt-Bölkow-Blohm GmbH, 8000 München "rotor mit gelenk- und lagerlosem blattanschluss"
GB2105818B (en) * 1981-09-15 1985-09-04 Steven Odobasic Torsion link
US4419051A (en) * 1982-02-16 1983-12-06 The Boeing Company Twin tension/torsion beam rotor system
US4502840A (en) * 1982-03-19 1985-03-05 Stephan Roman Blade pitch control in rotatable bladed devices for vehicles
US4466774A (en) * 1982-08-30 1984-08-21 United Technologies Corporation Composite flexbeam joint
GB2138100B (en) * 1983-03-18 1987-02-11 Steven Odobasic Laminated tubular link
DE3332417C2 (de) * 1983-09-08 1986-04-03 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn Rotor, insbesondere für Drehflügelflugzeuge
DE3401737A1 (de) * 1984-01-19 1985-07-25 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn Rotor, insbesondere eines drehfluegelflugzeuges
US4648800A (en) * 1984-05-15 1987-03-10 United Technologies Corporation Composite flexbeam for a rotary wing aircraft
US4580945A (en) * 1984-09-27 1986-04-08 United Technologies Corporation Helicopter gimbal rotor
US4566856A (en) * 1984-09-27 1986-01-28 United Technologies Corporation Helicopter gimbal rotor
US4569629A (en) * 1984-09-27 1986-02-11 United Technologies Corporation Helicopter gimbal rotor
EP0221678B1 (en) * 1985-10-15 1990-03-07 Westland Group plc Helicopter rotor
US4792280A (en) * 1987-04-27 1988-12-20 United Technologies Corporation Helicopter rotor flexbeam
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
US6585445B1 (en) * 1998-04-21 2003-07-01 Vanderbilt University Split tube flexure
US7037072B2 (en) 2004-03-03 2006-05-02 Carson Franklin D Rotor head for a rotary-wing aircraft
US7695249B2 (en) * 2006-12-01 2010-04-13 Sikorsky Aircraft Corporation Bearingless rotor blade assembly for a high speed rotary-wing aircraft
EP2818407B1 (en) * 2013-06-24 2016-12-21 AIRBUS HELICOPTERS DEUTSCHLAND GmbH Rotor system of a helicopter
EP3038909B1 (en) 2013-08-28 2019-05-08 Sikorsky Aircraft Corporation Rotor hub for rotary wing aircraft
FR3011818B1 (fr) 2013-10-11 2015-12-25 Eurocopter France Pale a vrillage adaptatif, et aeronef muni d'une telle pale
US10160540B2 (en) 2015-01-09 2018-12-25 Rohr, Inc. Rotor head for a vertical takeoff and landing aircraft
US11225324B2 (en) * 2019-05-17 2022-01-18 Lockheed Martin Corporation Dual flex-beam assembly for folding rotor blade

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2575533A (en) * 1947-04-16 1951-11-20 Charles M Seibel Rotor blade mounting and control
US2757745A (en) * 1952-04-21 1956-08-07 Verhage Gerard Frans Variable pitch rotor blade construction
FR1084706A (fr) * 1953-06-11 1955-01-24 Sncaso Voilure tournante, en particulier pour hélicoptère
US2845131A (en) * 1953-06-11 1958-07-29 Sncaso Rotor arrangement for rotary wing aircraft
FR1305631A (fr) * 1961-09-12 1962-10-05 Dornier Werke Gmbh Dispositif de suspension pour pales d'hélice commandées par réaction
US3261407A (en) * 1964-08-05 1966-07-19 Lockheed Aircraft Corp Helicopter rotor system
DE1275871B (de) * 1965-09-08 1968-08-22 Dornier Gmbh Hubschrauberrotor mit zwei an laminierten Federpaketen aufgehaengten Rotorblaettern
US3330362A (en) * 1966-05-31 1967-07-11 Lockheed Aircraft Corp Helicopter rotor
FR1532426A (fr) * 1967-05-23 1968-07-12 Agusta Aeronaut Costr Moyeu pour rotor d'hélicoptère, à entraînement mécanique
GB1189136A (en) * 1969-10-17 1970-04-22 Agusta Aeronaut Costr Rotor Head for a Mechanically Driven Helicopter
US3667863A (en) * 1970-02-03 1972-06-06 Gerald L Breuner Rotor hub and blade attachments
US3695779A (en) * 1970-05-18 1972-10-03 Lockheed Aircraft Corp Rotor system including a blade retention member
FR2125150B1 (US08080257-20111220-C00005.png) * 1971-02-15 1973-12-07 Aerospatiale
US3797964A (en) * 1971-06-24 1974-03-19 T Hanson Rotary wing apparatus
US3701612A (en) * 1971-07-07 1972-10-31 Gerald L Breuner Rotor hub and blade attachments
US3879153A (en) * 1974-01-07 1975-04-22 Gerald L Breuner Attachment for rotor hub and pairs of blades
US3865511A (en) * 1974-02-08 1975-02-11 Gerald L Breuner Rotor blade and hub attachment and control
US3942910A (en) * 1974-05-13 1976-03-09 Textron, Inc. Grip-yoke assembly with a redundant centrifugal load support

Also Published As

Publication number Publication date
JPS5396197A (en) 1978-08-23
JPS6226299U (US08080257-20111220-C00005.png) 1987-02-18
DE7738352U1 (de) 1989-06-22
DE2756071A1 (de) 1978-07-06
FR2374212B1 (US08080257-20111220-C00005.png) 1982-10-29
US4111605A (en) 1978-09-05
FR2374212A1 (fr) 1978-07-13
GB1573689A (en) 1980-08-28

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee