BE882683A - Rotor d'helicoptere avec mecanisme de restriction du mouvement des pales lors de leur pliage - Google Patents

Rotor d'helicoptere avec mecanisme de restriction du mouvement des pales lors de leur pliage

Info

Publication number
BE882683A
BE882683A BE0/200148A BE200148A BE882683A BE 882683 A BE882683 A BE 882683A BE 0/200148 A BE0/200148 A BE 0/200148A BE 200148 A BE200148 A BE 200148A BE 882683 A BE882683 A BE 882683A
Authority
BE
Belgium
Prior art keywords
blade
folding
helicopter rotor
restricting
motion
Prior art date
Application number
BE0/200148A
Other languages
English (en)
Inventor
D L Ferris
Original Assignee
United Technologies 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 United Technologies Corp filed Critical United Technologies Corp
Publication of BE882683A publication Critical patent/BE882683A/fr

Links

Classifications

    • 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
    • B64C27/50—Blades foldable to facilitate stowage of aircraft

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Tires In General (AREA)
  • Transmission Devices (AREA)
  • Catching Or Destruction (AREA)
  • Nonmetal Cutting Devices (AREA)
  • Toys (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Rotary Pumps (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Disintegrating Or Milling (AREA)
  • Cereal-Derived Products (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Motorcycle And Bicycle Frame (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)
  • Radio Relay Systems (AREA)
BE0/200148A 1979-05-02 1980-04-08 Rotor d'helicoptere avec mecanisme de restriction du mouvement des pales lors de leur pliage BE882683A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/035,364 US4284387A (en) 1979-05-02 1979-05-02 Blade fold restraint system

Publications (1)

Publication Number Publication Date
BE882683A true BE882683A (fr) 1980-07-31

Family

ID=21882218

Family Applications (1)

Application Number Title Priority Date Filing Date
BE0/200148A BE882683A (fr) 1979-05-02 1980-04-08 Rotor d'helicoptere avec mecanisme de restriction du mouvement des pales lors de leur pliage

Country Status (12)

Country Link
US (1) US4284387A (fr)
EP (1) EP0027468B1 (fr)
JP (1) JPS55148697A (fr)
AT (1) ATE4185T1 (fr)
AU (1) AU530102B2 (fr)
BE (1) BE882683A (fr)
BR (1) BR8008669A (fr)
CA (1) CA1121786A (fr)
DE (1) DE3064203D1 (fr)
IT (1) IT1131116B (fr)
NO (1) NO148145C (fr)
WO (1) WO1980002408A1 (fr)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1161413A (fr) * 1980-10-10 1984-01-31 Roderick A. Maclennan Calage automatique en position pour aubes de rotor d'helicoptere rabattables
US5322415A (en) * 1992-11-18 1994-06-21 United Technologies Corporation Pitch actuation system restraint device for a helicopter blade folding system
FR2750948B1 (fr) * 1996-07-12 1998-10-30 Eurocopter France Dispositif de blocage, au moins en pas, des pales d'un rotor
FR2765188B1 (fr) * 1997-06-30 1999-09-17 Eurocopter France Dispositif pour le repliage d'une pale de rotor de giravion
FR2765550B1 (fr) * 1997-07-07 1999-10-01 Eurocopter France Dispositif de blocage en pas des pales d'un rotor principal de giravion
US5951252A (en) * 1997-09-12 1999-09-14 Mcdonnell Douglas Helicopter Company Helicopter flap lock assembly
US6783327B1 (en) 2002-12-12 2004-08-31 Davis Aircraft Products Co., Inc. Helicopter blade folding with blade droop
US20060067822A1 (en) * 2004-09-24 2006-03-30 D Anna Frank P Pitch lock and lag positioner for a rotor blade folding system
US20060120873A1 (en) * 2004-12-03 2006-06-08 Sikorsky Aircraft Corporation Damper positioner for a rotor blade folding system
FR2882543B1 (fr) * 2005-02-28 2008-10-10 Eurocopter France Dispositif de verrouillage d'une structure de fixation d'une pale au moyeu d'un rotor de giravion
US7798442B2 (en) * 2006-03-17 2010-09-21 Sikorsky Aircraft Corporation Rotor assemblies having automatic blade folding systems
US7530790B2 (en) * 2006-09-20 2009-05-12 Sikorsky Aircraft Corporation Rotor blade folding system
WO2010124288A2 (fr) * 2009-04-24 2010-10-28 Noyes Rusty J Outil
WO2010141132A2 (fr) 2009-04-28 2010-12-09 Sikorsky Aircraft Corporation Valve de détecteur de proximité et système de verrouillage utilisant celle-ci
US9108727B2 (en) 2010-06-16 2015-08-18 Sikorsky Aircraft Corporation Blade fold system monitoring
DE102012206755B4 (de) * 2012-04-25 2022-11-24 Zf Friedrichshafen Ag Steuerstangenanordnung
CN102768518B (zh) * 2012-07-11 2014-05-21 清华大学 多无人机平台协同控制系统
US9327831B2 (en) 2013-05-22 2016-05-03 Bell Helicopter Textron Inc. Rotorcraft flapping lock
EP4610177A1 (fr) 2014-11-10 2025-09-03 Ascent Aerosystems Inc. Dispositif volant sans pilote
EP3297910B1 (fr) * 2015-05-19 2020-01-08 Alion Science and Technology Corp. Appareil de pliage de pales d'hélicoptère
KR101713669B1 (ko) * 2016-03-31 2017-03-08 한국생산기술연구원 접이식 날개를 갖는 드론
FR3056554B1 (fr) * 2016-09-29 2018-08-31 Airbus Helicopters Butee d'une pale
EP4015364B1 (fr) 2020-12-18 2023-09-27 AIRBUS HELICOPTERS DEUTSCHLAND GmbH Dispositif de blocage de l'angle de pas

Family Cites Families (12)

* 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
US2549886A (en) * 1947-07-18 1951-04-24 United Aircraft Corp Folding rotor blade
US2925130A (en) * 1954-10-01 1960-02-16 United Aircraft Corp Means of folding rotor blades
US3153455A (en) * 1962-10-15 1964-10-20 Boeing Co Folding mechanism
US3247907A (en) * 1963-09-18 1966-04-26 Boeing Co Blade folding mechanism for rotary wing aircraft
US3282350A (en) * 1965-10-20 1966-11-01 Boeing Co Rotor blade mounting construction
US3759631A (en) * 1972-07-05 1973-09-18 United Aircraft Corp Compound bearing for connecting a helicopter blade to a helicopter rotor
US3853426A (en) * 1972-09-05 1974-12-10 United Aircraft Corp Elastomeric helicopter rotor head with dynamic and static blade coning and droop stops
US3778189A (en) * 1972-09-05 1973-12-11 United Aircraft Corp Elastomeric helicopter rotor head with dynamic and static blade coning and droop stops
US4028001A (en) * 1975-07-28 1977-06-07 Westland Aircraft Limited Rotor for rotary wing aircraft
GB1514347A (en) * 1976-03-05 1978-06-14 Westland Aircraft Ltd Helicopter rotors
US4203708A (en) * 1978-06-26 1980-05-20 United Technologies Corporation Elastomeric rotor load reaction system

Also Published As

Publication number Publication date
ATE4185T1 (de) 1983-08-15
NO148145C (no) 1983-08-17
AU530102B2 (en) 1983-06-30
EP0027468B1 (fr) 1983-07-20
IT1131116B (it) 1986-06-18
IT8021731A0 (it) 1980-05-02
NO148145B (no) 1983-05-09
US4284387A (en) 1981-08-18
EP0027468A1 (fr) 1981-04-29
JPS55148697A (en) 1980-11-19
CA1121786A (fr) 1982-04-13
DE3064203D1 (en) 1983-08-25
BR8008669A (pt) 1981-04-14
WO1980002408A1 (fr) 1980-11-13
NO803955L (no) 1980-12-30
EP0027468A4 (fr) 1981-09-01
AU5731880A (en) 1980-11-06
JPH0255279B2 (fr) 1990-11-26

Similar Documents

Publication Publication Date Title
BE882683A (fr) Rotor d'helicoptere avec mecanisme de restriction du mouvement des pales lors de leur pliage
KR830003723A (ko) 미사일용의 접개들이식 자립날개(retractable self-erecting wing)구조
GB1534404A (en) Helicopter rotors
US2021481A (en) Folding propeller
SE8304281L (sv) Styvvingad flygkropp
GB1518464A (en) Aircraft
EP1298054A3 (fr) Engin aérien amphibie
DK375276A (da) Propeller med sammenfoldelige blade
GB1314417A (en) Rotor heads for rotary wing aircraft
GB1316320A (en) Rotary wing aircraft with folding rotor blades
SE8106271L (sv) Flygplan med arrangemang for montering av en sond
SE7807264L (sv) Batpropeller
GB753545A (en) Improvements in or relating to rotor blades for helicopters
GB1326652A (en) Aircraft
RU93032633A (ru) Летательный аппарат
RU1828444C (ru) Дирижабль
Raffel et al. Advanced flow velocity field metrology and their application to helicopter aerodynamics
KIESSLING Ground vibration test- A tool for rotorcraft dynamic and aeroelastic investigations
Bergh et al. Comparison between measured and calculated stall-flutter behavior of a one-bladed model rotor
ZWANN A walk along interfaces((aeroelasticity))(EEN WANDELING LANGS RAAKVLAKKEN)
CALKINS The Minipac II ejection seat program
RU2799U1 (ru) Устройство для придания вращательного движения колесу летательного аппарата при посадке
Iboshi et al. Measurements of blade flapping motion on a wind tunnel model
Rigamonti et al. Investigation of the steady-state behavior of two delta-wing hang gliders
ACURIO Basic research requirements for V/STOL propulsion and drive-train components(analysis of jet engine operating parameters for axial and radial turbines)

Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: UNITED TECHNOLOGIES CORP.

Effective date: 19860430