FR2271121B1 - - Google Patents

Info

Publication number
FR2271121B1
FR2271121B1 FR7514891A FR7514891A FR2271121B1 FR 2271121 B1 FR2271121 B1 FR 2271121B1 FR 7514891 A FR7514891 A FR 7514891A FR 7514891 A FR7514891 A FR 7514891A FR 2271121 B1 FR2271121 B1 FR 2271121B1
Authority
FR
France
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
FR7514891A
Other versions
FR2271121A1 (fr
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.)
Textron Inc
Original Assignee
Textron Inc
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 Textron Inc filed Critical Textron Inc
Publication of FR2271121A1 publication Critical patent/FR2271121A1/fr
Application granted granted Critical
Publication of FR2271121B1 publication Critical patent/FR2271121B1/fr
Expired 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Sealing Devices (AREA)
  • Tires In General (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Toys (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
FR7514891A 1974-05-13 1975-05-13 Expired FR2271121B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/469,530 US3942910A (en) 1974-05-13 1974-05-13 Grip-yoke assembly with a redundant centrifugal load support

Publications (2)

Publication Number Publication Date
FR2271121A1 FR2271121A1 (fr) 1975-12-12
FR2271121B1 true FR2271121B1 (fr) 1979-04-06

Family

ID=23864134

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7514891A Expired FR2271121B1 (fr) 1974-05-13 1975-05-13

Country Status (7)

Country Link
US (1) US3942910A (fr)
JP (1) JPS5835920B2 (fr)
CA (1) CA1023723A (fr)
DE (1) DE2520952C2 (fr)
FR (1) FR2271121B1 (fr)
GB (1) GB1461721A (fr)
IT (1) IT1035713B (fr)

Families Citing this family (22)

* 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
FR2310920A1 (fr) * 1975-05-14 1976-12-10 Aerospatiale Agencement de rotor pour aeronef a voilure tournante
GB1534404A (en) * 1976-07-15 1978-12-06 Westland Aircraft Ltd Helicopter rotors
US4131391A (en) * 1976-10-04 1978-12-26 Robinson Helicopter Co. Rotor hub and oil seal
US4111605A (en) * 1976-12-16 1978-09-05 The Boeing Company Composite hingeless rotor hub for rotary wing aircraft
US4135856A (en) * 1977-02-03 1979-01-23 Lord Corporation Rotor blade retention system
US4257739A (en) * 1978-09-11 1981-03-24 Textron, Inc. Soft inplane helicopter rotor
US4439106A (en) * 1982-06-14 1984-03-27 United Technologies Corporation Rotor blade shaft integrity monitoring system
JPS60118607A (ja) * 1983-11-29 1985-06-26 Mitsui Miike Kakoki Kk コ−クスの循環使用による二酸化硫黄ガスの還元方法
IT1196800B (it) * 1986-11-25 1988-11-25 Agusta Aeronaut Costr Rotore anticoppia per elicotteri
US4986735A (en) * 1989-10-13 1991-01-22 Bell Helicopter Textron, Inc. Pitch change bearing system
KR100799122B1 (ko) 2007-03-26 2008-01-29 한국항공우주연구원 비틀림 띠쇠 및 이를 구비한 허브장치
US8444382B2 (en) 2011-06-29 2013-05-21 Bell Helicopter Textron Inc. Rotor hub for use with high-inertia blades
FR2984847B1 (fr) * 2011-12-23 2013-12-27 Ratier Figeac Soc Pale a ancrage redondant dans un moyeu, helice, turbopropulseur et aeronef
US8695918B2 (en) * 2012-01-10 2014-04-15 Bell Helicopter Textron Inc. Bearing restraint for rotor systems
US9656747B2 (en) * 2013-03-14 2017-05-23 Bell Helicopter Textron Inc. Soft in-plane and stiff out-of-plane rotor system
FR3005301B1 (fr) 2013-05-03 2015-05-29 Eurocopter France Rotor carene d'aeronef, et giravion
WO2017078817A2 (fr) * 2015-10-07 2017-05-11 Sikorsky Aircraft Corporation Tête de rotor rigide avec rétention de faisceau torsible (tt)
US10988244B2 (en) 2017-05-05 2021-04-27 Laflamme Aero Inc. Helicopter rotor hub assembly and helicopter including same
US11299265B2 (en) * 2019-05-30 2022-04-12 Lockheed Martin Corporation Rotor blade folding system
US11066158B2 (en) * 2019-06-06 2021-07-20 Lockheed Martin Corporation Low drag high capacity pitch bearing for rigid rotor aircraft
US11111012B2 (en) * 2019-10-01 2021-09-07 Textron Innovations Inc. Hub with integral elastomeric bearing

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE630238C (de) * 1934-04-23 1936-05-23 Audrey Gretchen Coats Geb Wilm Steilschrauberfluegel
US3111172A (en) * 1962-06-21 1963-11-19 Lord Mfg Co Rotor head
US3280918A (en) * 1965-04-26 1966-10-25 Bell Aerospace Corp Rotor construction
US3292712A (en) * 1965-04-29 1966-12-20 Lord Corp Rotor head
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
US3695779A (en) * 1970-05-18 1972-10-03 Lockheed Aircraft Corp Rotor system including a blade retention member
US3700352A (en) * 1971-03-05 1972-10-24 Lord Corp Rotor system
DE2150741C3 (de) * 1971-10-12 1973-11-22 Messerschmitt Boelkow Blohm Schlag- und schwenkgelenklose Aufhaengung der Rotorblaetter eines Drehfluegelflugzeuges am Rotorkopf
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
FR2271121A1 (fr) 1975-12-12
JPS5835920B2 (ja) 1983-08-05
AU8107375A (en) 1976-11-18
GB1461721A (en) 1977-01-19
IT1035713B (it) 1979-10-20
DE2520952C2 (de) 1986-06-26
JPS5123998A (fr) 1976-02-26
DE2520952A1 (de) 1975-12-04
CA1023723A (fr) 1978-01-03
US3942910A (en) 1976-03-09

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Legal Events

Date Code Title Description
ST Notification of lapse