IT1010450B - Rotore per giroplani - Google Patents

Rotore per giroplani

Info

Publication number
IT1010450B
IT1010450B IT22340/74A IT2234074A IT1010450B IT 1010450 B IT1010450 B IT 1010450B IT 22340/74 A IT22340/74 A IT 22340/74A IT 2234074 A IT2234074 A IT 2234074A IT 1010450 B IT1010450 B IT 1010450B
Authority
IT
Italy
Prior art keywords
giroplani
rotor
Prior art date
Application number
IT22340/74A
Other languages
English (en)
Italian (it)
Original Assignee
Aerospatiale
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
Priority claimed from FR7316887A external-priority patent/FR2228663A1/fr
Priority claimed from FR7407776A external-priority patent/FR2263151B2/fr
Application filed by Aerospatiale filed Critical Aerospatiale
Application granted granted Critical
Publication of IT1010450B publication Critical patent/IT1010450B/it

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/32—Rotors
    • B64C27/35—Rotors having elastomeric joints

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Pivots And Pivotal Connections (AREA)
IT22340/74A 1973-05-10 1974-05-06 Rotore per giroplani IT1010450B (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7316887A FR2228663A1 (en) 1973-05-10 1973-05-10 Rotor for rotating wing aircraft - has yoke connecting rotor arm and star shaped rotor has low weight
FR7407776A FR2263151B2 (https=) 1974-03-07 1974-03-07

Publications (1)

Publication Number Publication Date
IT1010450B true IT1010450B (it) 1977-01-10

Family

ID=26217715

Family Applications (1)

Application Number Title Priority Date Filing Date
IT22340/74A IT1010450B (it) 1973-05-10 1974-05-06 Rotore per giroplani

Country Status (5)

Country Link
US (1) US3967918A (https=)
JP (1) JPS582119B2 (https=)
DE (1) DE2421764C3 (https=)
GB (1) GB1432117A (https=)
IT (1) IT1010450B (https=)

Families Citing this family (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4012169A (en) * 1973-05-10 1977-03-15 Societe Nationale Industrielle Aerospatiale Rotor for rotating wing type aircraft
FR2305343A2 (fr) * 1975-03-26 1976-10-22 Aerospatiale Rotor pour giravions
FR2310920A1 (fr) * 1975-05-14 1976-12-10 Aerospatiale Agencement de rotor pour aeronef a voilure tournante
DE2541998C2 (de) * 1975-09-20 1981-10-15 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Hubschrauberrotornabe mit schlag- und schwenkgelenklosem Blattanschluß
JPS5264797A (en) * 1975-11-26 1977-05-28 Kawasaki Heavy Ind Ltd Rotor head of rotary cascade aircraft
GB1535391A (en) * 1976-05-11 1978-12-13 Westland Aircraft Ltd Helicopter rotors
US4131391A (en) * 1976-10-04 1978-12-26 Robinson Helicopter Co. Rotor hub and oil seal
DE2648343C3 (de) * 1976-10-26 1981-06-19 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Schlag- und schwenkgelenkloser Rotor für Drehflügelflugzeuge
GB1539200A (en) * 1976-12-08 1979-01-31 Westland Aircraft Ltd Helicopter rotors
US4135856A (en) * 1977-02-03 1979-01-23 Lord Corporation Rotor blade retention system
DE2827320C2 (de) * 1978-06-22 1986-05-15 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Rotor für Drehflügelflugzeuge
DE2722250A1 (de) * 1977-03-23 1978-11-23 Messerschmitt Boelkow Blohm Rotor eines drehfluegelflugzeugs
DE2712706C2 (de) * 1977-03-23 1983-06-30 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Rotor eines Drehflügelflugzeugs
FR2397325A1 (fr) * 1977-07-13 1979-02-09 Aerospatiale Moyeu de rotor, en particulier pour le rotor principal d'un helicoptere
US4227857A (en) * 1977-08-19 1980-10-14 Textron, Inc. Composite flexural yoke for helicopters
GB2007176B (en) * 1977-09-07 1982-01-06 Westland Aircraft Ltd Helicopters
FR2423396A1 (fr) * 1978-04-17 1979-11-16 Aerospatiale Outillage permettant le repliage des pales d'un rotor principal d'helicoptere
US4306836A (en) * 1978-05-25 1981-12-22 Kaman Aerospace Corporation Hub assembly
GB2025338B (en) * 1978-06-02 1982-08-04 Aerospatiale Helicopterrotor
US4235570A (en) * 1978-06-26 1980-11-25 United Technologies Corporation Elastomeric helicopter rotor load reaction system
US4257739A (en) * 1978-09-11 1981-03-24 Textron, Inc. Soft inplane helicopter rotor
US4293276A (en) * 1978-10-27 1981-10-06 Textron Inc. Laminated composite rotor yoke
IT1117626B (it) * 1979-02-02 1986-02-17 Aereonautiche Giovanni Augusta Rotore articolato per elicotteri
US4242047A (en) * 1979-05-02 1980-12-30 United Technologies Corporation Adjustable bearing centering means for helicopter rotor elastomeric bearings
IT1129070B (it) * 1980-04-03 1986-06-04 Agusta Aeronaut Costr Rotore a giunti elastomerici per elicotteri
IT1156055B (it) * 1982-06-18 1987-01-28 Agusta Aeronaut Costr Rotore anticoppia per elicotteri
US4427340A (en) 1982-06-24 1984-01-24 Bell Helicopter Textron Inc. Soft inplane bearingless helicopter rotor
US4522563A (en) * 1982-07-06 1985-06-11 Bell Helicopter Textron, Inc. Elastomeric system for mounting a helicopter rotor
DE3241754C2 (de) * 1982-11-11 1986-02-06 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Rotor, insbesondere eines Drehflügelflugzeuges
IT1157122B (it) * 1982-12-06 1987-02-11 Agusta Aeronaut Costr Rotore per elicottero
GB2165333A (en) * 1984-09-26 1986-04-09 Steven Odobasic Laminated torsion elements
FR2590323B1 (fr) * 1985-11-21 1989-08-11 Aerospatiale Moyeu en balancier pour rotor bi-pale
US5059094A (en) * 1989-10-13 1991-10-22 Bell Helicopter Textron, Inc. Rotor redundant force retention system for vtol and vstol aircraft
US5407325A (en) * 1990-09-27 1995-04-18 Societe Nationale Industrielle Et Aerospatiale Rotor head for rotary wing aircraft
FR2667293B1 (fr) * 1990-09-27 1993-08-06 Aerospatiale Tete de rotor pour giravion.
US5980206A (en) * 1996-05-31 1999-11-09 Sikorsky Aircraft Corporation Monolithic structure having improved flaw tolerance
US6296444B1 (en) * 1999-10-01 2001-10-02 Bell Helicopter Textron Inc. Prop rotor hub
FR2817830B1 (fr) * 2000-12-11 2003-02-14 Eurocopter France Perfectionnements aux rotors de giravion a pales a repliage manuel et installation de connexion electrique de degivrage
WO2007044374A2 (en) * 2005-10-05 2007-04-19 Sikorsky Aircraft Corporation Swashplate anti-torque mechanism
US9327832B2 (en) * 2011-10-03 2016-05-03 Bell Helicopter Textron Inc. Elastomeric bearing with tapered shims
US9156544B2 (en) * 2012-02-21 2015-10-13 Textron Innovations Inc. Hub assembly with centrifugal and radial bearings
FR2991290B1 (fr) * 2012-05-29 2014-11-28 Etienne Jean Rampal Dispositif de limitation de la hauteur des extremites des pales repliees par rapport au sol des rotors de giravions
EP2722276B1 (en) * 2012-10-18 2015-03-18 AIRBUS HELICOPTERS DEUTSCHLAND GmbH Separable blade attachment for a bearingless rotor of a helicopter
EP2818407B1 (en) * 2013-06-24 2016-12-21 AIRBUS HELICOPTERS DEUTSCHLAND GmbH Rotor system of a helicopter
US9334048B2 (en) 2013-09-18 2016-05-10 Bell Helicopter Textron Inc. Elastomeric bearing having tapered layers
US20150125300A1 (en) * 2013-11-05 2015-05-07 Bell Helicopter Textron Inc. Rotor hub for a rotorcraft
US9764831B2 (en) 2014-03-10 2017-09-19 Bell Helicopter Textron Inc. Articulated main rotor hub with inwardly CF bearing and 3% flapping hinge offset
EP3297910B1 (en) * 2015-05-19 2020-01-08 Alion Science and Technology Corp. Helicopter blade folding apparatus
US10988244B2 (en) 2017-05-05 2021-04-27 Laflamme Aero Inc. Helicopter rotor hub assembly and helicopter including same
US10703460B2 (en) 2017-12-18 2020-07-07 Bell Helicopter Textron Inc. Folding spindle and bearing assembly in a folding rotor blade assembly
US10703469B2 (en) * 2017-12-18 2020-07-07 Bell Helicopter Textron Inc. Compact folding yoke with flexible yoke arms in a folding rotor blade assembly
US10569869B2 (en) 2017-12-18 2020-02-25 Bell Helicopter Textron Inc. Compact folding yoke in a folding rotor blade assembly
US10577079B2 (en) 2017-12-18 2020-03-03 Bell Helicopter Textron Inc. Dual blade fold bolts and inboard centrifugal bearing in a folding rotor blade assembly
US10640205B2 (en) 2017-12-18 2020-05-05 Bell Helicopter Textron Inc. Outboard centrifugal force bearing with inboard blade fold axis in a folding rotor blade assembly
US10703461B2 (en) 2018-04-26 2020-07-07 Bell Helicopter Textron Inc. Blade fold method and apparatus for a tilt rotor hub
US10933986B2 (en) 2018-06-22 2021-03-02 Bell Helicopter Textron Inc. Blade fold method and apparatus for a tilt rotor hub
US12060148B2 (en) 2022-08-16 2024-08-13 Honeywell International Inc. Ground resonance detection and warning system and method

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2405777A (en) * 1943-03-31 1946-08-13 United Aircraft Corp Foldable rotor
US3026942A (en) * 1959-07-07 1962-03-27 Bell Helicopter Corp Helicopter rotor system
US3106965A (en) * 1961-10-02 1963-10-15 Lord Mfg Co Rotor head
US3193019A (en) * 1964-06-05 1965-07-06 Bell Aerospace Corp Rotor system
US3292712A (en) * 1965-04-29 1966-12-20 Lord Corp Rotor head
US3384185A (en) * 1967-06-02 1968-05-21 Aerojet General Co Rotor hubs
FR1568117A (https=) * 1968-02-12 1969-05-23
US3501250A (en) * 1968-03-22 1970-03-17 Boeing Co Rotor hub
US3484172A (en) * 1968-05-27 1969-12-16 Richard Eugene Reed Helicopter
US3556673A (en) * 1968-10-11 1971-01-19 Bolkow Gmbh Rotor mounting
US3652185A (en) * 1970-03-13 1972-03-28 Textron Inc Elastomeric rotor blade mount
FR2125150B1 (https=) * 1971-02-15 1973-12-07 Aerospatiale
US3700352A (en) * 1971-03-05 1972-10-24 Lord Corp Rotor system
US3804552A (en) * 1972-07-05 1974-04-16 Textron Inc Four blade main rotor control power coupling
US3761199A (en) * 1972-07-14 1973-09-25 United Aircraft Corp Helicopter rotor with redundant load carrying capability
US3790302A (en) * 1972-10-10 1974-02-05 Textron Inc Tail rotor mounting for coning relief
US3807896A (en) * 1972-10-10 1974-04-30 Textron Inc Concentric tube spring rotor mount

Also Published As

Publication number Publication date
JPS5048699A (https=) 1975-04-30
JPS582119B2 (ja) 1983-01-14
DE2421764C3 (de) 1980-04-03
DE2421764B2 (de) 1979-08-02
GB1432117A (en) 1976-04-14
US3967918A (en) 1976-07-06
DE2421764A1 (de) 1974-11-28

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