IN2015DE00263A - - Google Patents

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Publication number
IN2015DE00263A
IN2015DE00263A IN263DE2015A IN2015DE00263A IN 2015DE00263 A IN2015DE00263 A IN 2015DE00263A IN 263DE2015 A IN263DE2015 A IN 263DE2015A IN 2015DE00263 A IN2015DE00263 A IN 2015DE00263A
Authority
IN
India
Prior art keywords
bearings
rotor
freedom
arm assembly
pitch shaft
Prior art date
Application number
Other languages
English (en)
Inventor
T Loftus Robert Jr
Clay Hill Jeremy
Opie Saul
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 IN2015DE00263A publication Critical patent/IN2015DE00263A/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
    • 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
    • B64C27/39—Rotors having articulated joints with individually articulated blades, i.e. with flapping or drag hinges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/54—Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49316—Impeller making
    • Y10T29/49332—Propeller making

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Support Of The Bearing (AREA)
  • Sliding-Contact Bearings (AREA)
  • Motor Or Generator Frames (AREA)
IN263DE2015 2014-04-04 2015-01-29 IN2015DE00263A (ro)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14/245,113 US9796469B2 (en) 2014-04-04 2014-04-04 Modular rotor craft rotor hub system

Publications (1)

Publication Number Publication Date
IN2015DE00263A true IN2015DE00263A (ro) 2015-10-09

Family

ID=52987922

Family Applications (1)

Application Number Title Priority Date Filing Date
IN263DE2015 IN2015DE00263A (ro) 2014-04-04 2015-01-29

Country Status (7)

Country Link
US (1) US9796469B2 (ro)
EP (1) EP2927121B1 (ro)
JP (1) JP6490427B2 (ro)
CN (1) CN104973244B (ro)
ES (1) ES2646128T3 (ro)
IN (1) IN2015DE00263A (ro)
RU (1) RU2678228C2 (ro)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10287007B2 (en) * 2016-01-19 2019-05-14 The Boeing Company Rotorcraft and associated rotor blade position monitoring system and method
US10308356B2 (en) * 2016-11-22 2019-06-04 Bell Helicopter Textron Inc. Axial springs for rotor hub assembly
CN106828973B (zh) * 2017-02-10 2020-02-07 中国航发沈阳发动机研究所 一种螺旋桨离心载荷试验装置
CN109305346A (zh) * 2018-11-27 2019-02-05 歌尔股份有限公司 一种无人机飞行器

Family Cites Families (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3200887A (en) * 1963-08-09 1965-08-17 Enstrom Corp Helicopter rotor system having elastomeric bearings
US3556673A (en) * 1968-10-11 1971-01-19 Bolkow Gmbh Rotor mounting
US3589835A (en) * 1969-07-17 1971-06-29 United Aircraft Corp Variable stiffness rotor
US3652185A (en) * 1970-03-13 1972-03-28 Textron Inc Elastomeric rotor blade mount
US3700352A (en) * 1971-03-05 1972-10-24 Lord Corp Rotor system
US3759632A (en) * 1972-07-05 1973-09-18 United Aircraft Corp Articulated helicopter rotor
US3782854A (en) 1972-07-05 1974-01-01 United Aircraft Corp Elastomeric bearing for a helicopter rotor
US3862812A (en) * 1973-07-18 1975-01-28 Lord Corp Rotor blade retention system
DE2643166A1 (de) * 1975-11-03 1977-05-12 United Technologies Corp Elastomeres lager fuer hubschrauberrotor
GB1534404A (en) * 1976-07-15 1978-12-06 Westland Aircraft Ltd Helicopter rotors
US4089211A (en) * 1976-11-01 1978-05-16 United Technologies Corporation Elastomeric bearing test machine
US4135856A (en) * 1977-02-03 1979-01-23 Lord Corporation Rotor blade retention system
US4333728A (en) * 1977-08-11 1982-06-08 Textron, Inc. Compound hub spring system for helicopters
US4251187A (en) * 1978-05-25 1981-02-17 Kaman Aerospace Corporation Blade retention bearing for helicopter rotor
FR2458457A1 (fr) * 1979-06-05 1981-01-02 Aerospatiale Rotor de giravion a moyeu articule compact
US4341499A (en) * 1980-03-24 1982-07-27 Barry Wright Corporation Blade retention system
IT1129070B (it) * 1980-04-03 1986-06-04 Agusta Aeronaut Costr Rotore a giunti elastomerici per elicotteri
US4543040A (en) 1982-09-30 1985-09-24 The Boeing Company Helicopter rotor system
DE3241754C2 (de) * 1982-11-11 1986-02-06 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Rotor, insbesondere eines Drehflügelflugzeuges
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
US4986735A (en) * 1989-10-13 1991-01-22 Bell Helicopter Textron, Inc. Pitch change bearing system
IT1240177B (it) * 1990-04-06 1993-11-27 Agusta Spa Rotore principale per elicotteri
US5407325A (en) * 1990-09-27 1995-04-18 Societe Nationale Industrielle Et Aerospatiale Rotor head for rotary wing aircraft
US5601408A (en) * 1996-03-18 1997-02-11 Sikorsky Aircraft Corporation Axisymmetric elastomeric bearing assembly for helicopter rotors
US6050778A (en) * 1998-09-24 2000-04-18 The Boeing Company Semi-articulated rotor system
US6309182B1 (en) 2000-04-05 2001-10-30 The Boeing Company Helicopter rotor droop stop mechanism
US6413048B1 (en) 2000-09-29 2002-07-02 The Boeing Company Elastomeric bearing
US6481894B1 (en) * 2001-02-23 2002-11-19 Lord Corporation Pitch bearing
US6889965B2 (en) 2001-10-10 2005-05-10 The Boeing Company Opposing conical preloaded elastomeric bearing assembly
EP1752375A3 (en) 2001-10-10 2014-08-13 The Boeing Company Elastomeric bearing assembly with preloaded opposing conical bearing elements and method of forming the same
US6688767B2 (en) * 2001-12-11 2004-02-10 The Boeing Company Self-aligning dynamic hinge sleeve
US7097169B2 (en) 2004-08-04 2006-08-29 Skf Usa Inc. Elastomeric bearing with modified cylindrical core
US8511997B2 (en) * 2007-12-19 2013-08-20 Sikorsky Aircraft Corporation Uniform fatigue life spherical elastomeric bearing
FR2927881B1 (fr) * 2008-02-27 2010-10-29 Eurocopter France Helicoptere muni d'une pluralite d'elements sustentateurs pour commander l'incidence de ses pales
RU2376201C1 (ru) 2008-05-08 2009-12-20 Открытое акционерное общество "Камов" Несущий винт винтокрылого летательного аппарата с системой складывания лопастей
US9068621B1 (en) * 2010-11-23 2015-06-30 Lord Corporation Rotary wing aircraft bearing for rotary wing aircraft motions
CN101973399B (zh) * 2010-09-30 2012-11-28 南京航空航天大学 倾转旋翼飞行器用等速万向铰桨毂
US9327832B2 (en) * 2011-10-03 2016-05-03 Bell Helicopter Textron Inc. Elastomeric bearing with tapered shims
US9702402B2 (en) * 2011-10-28 2017-07-11 Textron Innovations Inc. Increased capacity spherical lined bearings
US9085357B2 (en) * 2011-11-15 2015-07-21 Textron Innovations Inc. Rotor hub bearing system
US8926281B2 (en) * 2012-02-21 2015-01-06 Textron Innovations Inc. Compact rotorcraft dual-element spherical elastomeric centrifugal-force bearing assembly
US9352830B2 (en) * 2012-04-25 2016-05-31 Textron Innovations Inc. Aircraft rotor with discrete flap hinge

Also Published As

Publication number Publication date
RU2015103195A3 (ro) 2018-07-12
CN104973244A (zh) 2015-10-14
JP2015199486A (ja) 2015-11-12
JP6490427B2 (ja) 2019-03-27
RU2678228C2 (ru) 2019-01-24
CN104973244B (zh) 2018-11-02
EP2927121A1 (en) 2015-10-07
US9796469B2 (en) 2017-10-24
US20150284077A1 (en) 2015-10-08
RU2015103195A (ru) 2016-08-20
ES2646128T3 (es) 2017-12-12
EP2927121B1 (en) 2017-08-09

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