BE861600A - Rotor a sommier perfectionne - Google Patents

Rotor a sommier perfectionne

Info

Publication number: BE861600A
Authority: BE; Belgium
Prior art keywords: base rotor; perfected; perfected base; rotor; base
Prior art date: 1976-12-15

Application number

BE183250A

Other languages

English (en)

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.)

1976-12-15

Filing date

1977-12-07

Publication date

1978-03-31

1977-12-07 Application filed by United Technologies Corp filed Critical United Technologies Corp

1978-03-31 Publication of BE861600A publication Critical patent/BE861600A/fr

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/32—Rotors
- B64C27/33—Rotors having flexing arms

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Aviation & Aerospace Engineering (AREA)
Structures Of Non-Positive Displacement Pumps (AREA)
Toys (AREA)
Turbine Rotor Nozzle Sealing (AREA)

BE183250A 1976-12-15 1977-12-07 Rotor a sommier perfectionne BE861600A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US05/751,006 US4093400A (en)	1976-12-15	1976-12-15	Cross beam rotor

Publications (1)

Publication Number	Publication Date
BE861600A true BE861600A (fr)	1978-03-31

Family

ID=25020062

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE183250A BE861600A (fr)	1976-12-15	1977-12-07	Rotor a sommier perfectionne

Country Status (10)

Country	Link
US (1)	US4093400A (fr)
JP (1)	JPS5375699A (fr)
AU (1)	AU508596B2 (fr)
BE (1)	BE861600A (fr)
CA (1)	CA1073885A (fr)
DE (1)	DE2755557C2 (fr)
FR (1)	FR2374211A1 (fr)
GB (1)	GB1553148A (fr)
IL (1)	IL53522A (fr)
IT (1)	IT1088384B (fr)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2722250A1 (de) *	1977-03-23	1978-11-23	Messerschmitt Boelkow Blohm	Rotor eines drehfluegelflugzeugs
FR2397325A1 (fr) *	1977-07-13	1979-02-09	Aerospatiale	Moyeu de rotor, en particulier pour le rotor principal d'un helicoptere
FR2397327A1 (fr) *	1977-07-13	1979-02-09	Aerospatiale	Rotor a pas variable, en particulier pour un giravion
DE2810334A1 (de) *	1978-03-10	1979-09-13	Messerschmitt Boelkow Blohm	Rotorblatt, insbesondere fuer drehfluegelflugzeuge
US4244677A (en) *	1978-07-12	1981-01-13	United Technologies Corporation	Cross-beam helicopter rotor with readily replaceable snubber
US4299538A (en) *	1978-12-06	1981-11-10	United Technologies Corporation	Cross beam rotor
DE2903524C2 (de) *	1979-01-31	1982-02-25	Messerschmitt-Bölkow-Blohm GmbH, 8000 München	Schlag- und schwenkgelenkloser Anschluß von Rotorblättern eines Drehflügelflugzeuges
DE2929906C3 (de) *	1979-07-24	1982-01-21	Messerschmitt-Bölkow-Blohm GmbH, 8000 München	Rotor für einen Hubschrauber mit zumindest einem Paar einander gegenüberliegender Rotorblätter
US4332525A (en) *	1979-12-03	1982-06-01	United Technologies Corporation	Matched stiffness rotor flexbeam and blade system
US4381902A (en) *	1979-12-20	1983-05-03	Hughes Helicopters, Inc.	Helicopter tail rotor of the elastomerically-mounted composite flexbeam type
US4323332A (en) *	1979-12-21	1982-04-06	United Technologies Corporation	Hingeless helicopter rotor with elastic gimbal hub
DE3004451C2 (de) *	1980-02-07	1985-04-04	Messerschmitt-Bölkow-Blohm GmbH, 8000 München	Elastomere Dämpfungseinrichtung
DE3271008D1 (en) *	1981-09-18	1986-06-12	Westland Plc	Helicopter rotor
DE3367371D1 (en) *	1982-03-18	1986-12-11	Westland Plc	Helicopter rotors
US4650401A (en) *	1983-04-07	1987-03-17	Mcdonnell Douglas Helicopter Company	Flat strap cruciform flexure for helicopter rotor systems
US4695227A (en) *	1985-02-27	1987-09-22	Hughes Helicopters Inc.	All composite, constant speed universal joint for use in a shaft driven tiltable main rotor for a helicopter
US4898515A (en) *	1986-07-23	1990-02-06	United Technologies Corporation	External wrap of composite flexbeam
JP2667176B2 (ja) *	1987-11-10	1997-10-27	富士重工業株式会社	ヘリコプタのピッチ変更及びリードラグ減衰装置
US5092738A (en) *	1990-04-06	1992-03-03	United Technologies Corporation	Flexbeam helicopter rotor with improved snubber-vibration damper between the torque tube and the flexible spar member
DE10316095B4 (de) *	2003-04-08	2010-09-16	Eurocopter Deutschland Gmbh	Drehflügelrotor
US7665969B2 (en)	2005-01-24	2010-02-23	Bell Helicopter Textron Inc.	Assembly for providing flexure to blade system
EP2367719B1 (fr)	2008-12-11	2018-09-12	Sikorsky Aircraft Corporation	Assemblage pour lames de rotor de queue avec dispositif limiteur de mouvement d'un système de palier élastomère
US9555880B2 (en) *	2011-02-09	2017-01-31	Sikorsky Aircraft Corporation	Flexbeam rotor
US9457897B2 (en)	2013-02-27	2016-10-04	Bell Helicopter Textron Inc.	Rotor system shear bearing
US9505490B2 (en) *	2013-03-13	2016-11-29	Bell Helicopter Textron Inc.	Composite rotor system using two race track style cantilevered yokes
EP3495265B1 (fr) *	2017-12-05	2019-11-27	AIRBUS HELICOPTERS DEUTSCHLAND GmbH	Ensemble rotor pour un giravion comportant un pas collectif contrôlé par un couple

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2830669A (en) *	1955-06-03	1958-04-15	Herman R Klockner	Blade-pitch-regulating means for the rotors of sustaining-rotor-equipped aircraft
US2949967A (en) *	1959-05-25	1960-08-23	Hughes Tool Co	Blade-to-hub connector for thrust producing rotor
US3193019A (en) *	1964-06-05	1965-07-06	Bell Aerospace Corp	Rotor system
GB1205757A (en) *	1967-02-07	1970-09-16	Westland Aircraft Ltd	Improvements in or relating to rotor heads for rotary wing aircraft
CA951301A (en) *	1971-04-08	1974-07-16	United Aircraft Corporation	Helicopter rotor system
US3880551A (en) *	1973-11-15	1975-04-29	Boeing Co	Rotary head assembly for rotary wing aircraft
US3874815A (en) *	1973-11-15	1975-04-01	Boeing Co	Rotary head assembly for rotary wing aircraft
US4008980A (en) *	1975-06-26	1977-02-22	United Technologies Corporation	Composite helicopter spar and means to alleviate stress concentration
US3999887A (en) *	1975-07-09	1976-12-28	Lord Corporation	Propeller assembly

1976
- 1976-12-15 US US05/751,006 patent/US4093400A/en not_active Expired - Lifetime
1977
- 1977-12-02 IL IL53522A patent/IL53522A/xx unknown
- 1977-12-02 IT IT30311/77A patent/IT1088384B/it active
- 1977-12-02 AU AU31167/77A patent/AU508596B2/en not_active Expired
- 1977-12-07 BE BE183250A patent/BE861600A/fr not_active IP Right Cessation
- 1977-12-07 CA CA292,587A patent/CA1073885A/fr not_active Expired
- 1977-12-08 FR FR7736966A patent/FR2374211A1/fr active Granted
- 1977-12-09 GB GB51424/77A patent/GB1553148A/en not_active Expired
- 1977-12-13 DE DE2755557A patent/DE2755557C2/de not_active Expired
- 1977-12-13 JP JP14980477A patent/JPS5375699A/ja active Pending

Also Published As

Publication number	Publication date
DE2755557C2 (de)	1986-09-11
DE2755557A1 (de)	1978-07-06
JPS5375699A (en)	1978-07-05
IL53522A (en)	1983-07-31
FR2374211A1 (fr)	1978-07-13
AU3116777A (en)	1979-06-07
IT1088384B (it)	1985-06-10
US4093400A (en)	1978-06-06
GB1553148A (en)	1979-09-19
FR2374211B1 (fr)	1983-09-16
AU508596B2 (en)	1980-03-27
CA1073885A (fr)	1980-03-18

Publication	Publication Date	Title
BE861600A (fr)	1978-03-31	Rotor a sommier perfectionne
BE862604A (fr)	1978-05-02	Rotor a sommier perfectionne
IT1111662B (it)	1986-01-13	Cuscinetto a lamine perfezionato
PL198145A1 (pl)	1978-02-27	Srodek chwastobojczy
PL200750A1 (pl)	1979-05-07	Srodek chwastobojczy
PL201648A1 (pl)	1978-06-05	Srodek chwastobojczy
BE859965A (fr)	1978-04-21	Rotor de generatrice a supraconductivite
FR2353985A1 (fr)	1977-12-30	Machine dynamo-electrique a refroidissement perfectionne
FR2353984A1 (fr)	1977-12-30	Machine dynamo-electrique a refroidissement perfectionne
BR7708438A (pt)	1978-07-25	Acionamento posicionador
BE859964A (fr)	1978-04-21	Rotor de generatrice a supraconductivite
PL199969A1 (pl)	1978-03-13	Srodek chwastobojczy
PL196753A1 (pl)	1978-01-16	Srodek chwastobojczy
FR2328581A1 (fr)	1977-05-20	Perfectionnement a la decalcomanie
PL203087A1 (pl)	1978-07-17	Srodek chwastobojczy
PL194293A1 (pl)	1978-03-28	Srodek chwastobojczy
PL198477A1 (pl)	1978-02-27	Srodek chwastobojczy
PL202799A1 (pl)	1978-08-28	Srodek chwastobojczy
IT1057711B (it)	1982-03-30	Pagnetron a cavita riscnante
IT1078240B (it)	1985-05-08	Trafilatrice perfezionata
PL197043A1 (pl)	1978-03-13	Srodek chwastobojczy
PL200001A1 (pl)	1978-03-28	Srodek chwastobojczy
PL197958A1 (pl)	1978-01-30	Srodek chwastobojczy
PL196669A1 (pl)	1978-01-02	Srodek chwastobojczy
PL200475A1 (pl)	1978-05-08	Srodek chwastobojczy

Legal Events

Date	Code	Title	Description
1987-06-30	RE	Patent lapsed	Owner name: UNITED TECHNOLOGIES CORP. Effective date: 19861231

Date

Code

Title

Description

1987-06-30

Patent lapsed

Owner name: UNITED TECHNOLOGIES CORP.

Effective date: 19861231