IL45138A - Rotor blade retention system - Google Patents

Rotor blade retention system

Info

Publication number
IL45138A
IL45138A IL45138A IL4513874A IL45138A IL 45138 A IL45138 A IL 45138A IL 45138 A IL45138 A IL 45138A IL 4513874 A IL4513874 A IL 4513874A IL 45138 A IL45138 A IL 45138A
Authority
IL
Israel
Prior art keywords
blade
rotor
bearings
retention system
housing
Prior art date
Application number
IL45138A
Other languages
English (en)
Other versions
IL45138A0 (en
Original Assignee
Lord Corp
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 Lord Corp filed Critical Lord Corp
Publication of IL45138A0 publication Critical patent/IL45138A0/xx
Publication of IL45138A publication Critical patent/IL45138A/en

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)
  • Support Of The Bearing (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Sliding-Contact Bearings (AREA)
IL45138A 1973-07-18 1974-06-27 Rotor blade retention system IL45138A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US380304A US3862812A (en) 1973-07-18 1973-07-18 Rotor blade retention system

Publications (2)

Publication Number Publication Date
IL45138A0 IL45138A0 (en) 1974-12-31
IL45138A true IL45138A (en) 1977-12-30

Family

ID=23500667

Family Applications (1)

Application Number Title Priority Date Filing Date
IL45138A IL45138A (en) 1973-07-18 1974-06-27 Rotor blade retention system

Country Status (8)

Country Link
US (1) US3862812A (de)
JP (1) JPS50130199A (de)
CA (1) CA984361A (de)
DE (1) DE2432510A1 (de)
FR (1) FR2237802A1 (de)
GB (1) GB1470554A (de)
IL (1) IL45138A (de)
IT (1) IT1016440B (de)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1530366A (en) * 1975-07-18 1978-10-25 Lord Corp Rotary blade retention system
US4028001A (en) * 1975-07-28 1977-06-07 Westland Aircraft Limited Rotor for rotary wing aircraft
DE2541998C2 (de) * 1975-09-20 1981-10-15 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Hubschrauberrotornabe mit schlag- und schwenkgelenklosem Blattanschluß
DE2643166A1 (de) * 1975-11-03 1977-05-12 United Technologies Corp Elastomeres lager fuer hubschrauberrotor
US4028002A (en) * 1976-03-01 1977-06-07 Lord Corporation Rotor blade retention system
GB1539200A (en) * 1976-12-08 1979-01-31 Westland Aircraft Ltd Helicopter rotors
DE2722250A1 (de) * 1977-03-23 1978-11-23 Messerschmitt Boelkow Blohm Rotor eines drehfluegelflugzeugs
US4306836A (en) * 1978-05-25 1981-12-22 Kaman Aerospace Corporation Hub assembly
US4235570A (en) * 1978-06-26 1980-11-25 United Technologies Corporation Elastomeric helicopter rotor load reaction system
US4242047A (en) * 1979-05-02 1980-12-30 United Technologies Corporation Adjustable bearing centering means for helicopter rotor elastomeric bearings
US4365936A (en) * 1979-12-06 1982-12-28 Chicago Rawhide Manufacturing Company Laminated elastomeric bearing unit
US4341499A (en) * 1980-03-24 1982-07-27 Barry Wright Corporation Blade retention system
US4543010A (en) * 1981-12-01 1985-09-24 Dunlop Limited Joint means
US4533274A (en) * 1982-01-27 1985-08-06 Dunlop Limited Flexible joint means
GB2157394B (en) * 1984-04-12 1988-07-06 Loggers Beheer Bv Spring system
IT1157122B (it) * 1982-12-06 1987-02-11 Agusta Aeronaut Costr Rotore per elicottero
FR2564057B1 (fr) * 1984-05-14 1986-10-31 Aerospatiale Dispositif a plateaux cycliques montes sur articulations lamifiees pour la commande du pas des pales d'un rotor
US4765758A (en) * 1985-01-07 1988-08-23 Barry Wright Corporation Laminated bearing
US5035576A (en) * 1989-10-11 1991-07-30 United Technologies Corporation Propeller blade pin attachment
US5110260A (en) * 1990-12-17 1992-05-05 United Technologies Corporation Articulated helicopter rotor within an improved blade-to-hub connection
US5118256A (en) * 1991-04-29 1992-06-02 United Technologies Corporation Blade retention apparatus with elastomeric preload
US5601408A (en) * 1996-03-18 1997-02-11 Sikorsky Aircraft Corporation Axisymmetric elastomeric bearing assembly for helicopter rotors
US6889965B2 (en) 2001-10-10 2005-05-10 The Boeing Company Opposing conical preloaded elastomeric bearing assembly
US6860015B2 (en) 2001-10-10 2005-03-01 The Boeing Company Method of forming opposing internally preloaded conical elastomeric bearing assembly
US7354248B2 (en) * 2005-10-17 2008-04-08 Sikorsky Aircraft Corporation Elastomeric bearing elements for droop stop mechanisms
US9327832B2 (en) * 2011-10-03 2016-05-03 Bell Helicopter Textron Inc. Elastomeric bearing with tapered shims
US9085357B2 (en) * 2011-11-15 2015-07-21 Textron Innovations Inc. Rotor hub bearing system
FR2984849B1 (fr) * 2011-12-27 2013-12-20 Eurocopter France Butee lamifiee, rotor muni d'un telle butee, et aeronef
US8926281B2 (en) 2012-02-21 2015-01-06 Textron Innovations Inc. Compact rotorcraft dual-element spherical elastomeric centrifugal-force bearing assembly
US9458877B2 (en) 2013-01-24 2016-10-04 The Boeing Company Multi-directional elastomeric dampened ball joint assembly
US9334048B2 (en) * 2013-09-18 2016-05-10 Bell Helicopter Textron Inc. Elastomeric bearing having tapered layers
EP2913268B1 (de) * 2014-02-26 2018-08-01 AIRBUS HELICOPTERS DEUTSCHLAND GmbH Lageranordnung mit einer ersten Lagerschicht und einer zweiten Lagerschicht
US9873507B2 (en) * 2014-02-26 2018-01-23 Bell Helicopter Textron Inc. Rotorcraft elastomeric bearing assembly
US9796469B2 (en) * 2014-04-04 2017-10-24 The Boeing Company Modular rotor craft rotor hub system
US9347487B2 (en) * 2014-05-30 2016-05-24 Bell Helicopter Textron Inc. Rotorcraft bearing with rotation slip joint
FR3067002B1 (fr) * 2017-06-02 2020-08-07 Etienne Jean Rampal Dispositif de moyeu rotor d'aeronef avec pales articulees sur rotule en forme de deux secteurs spheriques lamifies sur fusee
DE102019001744A1 (de) * 2019-03-14 2020-09-17 Senvion Gmbh Verfahren und System zum Halten eines Rotorblatts

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3292712A (en) * 1965-04-29 1966-12-20 Lord Corp Rotor head
US3556673A (en) * 1968-10-11 1971-01-19 Bolkow Gmbh Rotor mounting
US3782854A (en) * 1972-07-05 1974-01-01 United Aircraft Corp Elastomeric bearing for a helicopter rotor
US3764230A (en) * 1972-07-05 1973-10-09 United Aircraft Corp Articulated helicopter rotor utilizing plural elastomeric bearings for articulated support of the blade from the rotor hub

Also Published As

Publication number Publication date
FR2237802A1 (de) 1975-02-14
DE2432510A1 (de) 1975-02-06
US3862812A (en) 1975-01-28
GB1470554A (en) 1977-04-14
JPS50130199A (de) 1975-10-15
IL45138A0 (en) 1974-12-31
IT1016440B (it) 1977-05-30
CA984361A (en) 1976-02-24

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