BE877614A - Rotor d'helicoptere a sommier comportant un amortisseur aisement remplacable - Google Patents

Rotor d'helicoptere a sommier comportant un amortisseur aisement remplacable

Info

Publication number: BE877614A
Authority: BE; Belgium
Prior art keywords: replacable; easy; shock absorber; helicopter rotor; base
Prior art date: 1978-07-12

Application number

BE0/196235A

Other languages

English (en)

French (fr)

Inventor

W Noehren

P Ogle

D 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.)

1978-07-12

Filing date

1979-07-10

Publication date

1979-11-05

1979-07-10 Application filed by United Technologies Corp filed Critical United Technologies Corp

1979-11-05 Publication of BE877614A publication Critical patent/BE877614A/xx

Links

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)
Vibration Dampers (AREA)
Tires In General (AREA)
Toys (AREA)
Springs (AREA)

BE0/196235A 1978-07-12 1979-07-10 Rotor d'helicoptere a sommier comportant un amortisseur aisement remplacable BE877614A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US05/924,110 US4244677A (en)	1978-07-12	1978-07-12	Cross-beam helicopter rotor with readily replaceable snubber

Publications (1)

Publication Number	Publication Date
BE877614A true BE877614A (fr)	1979-11-05

Family

ID=25449720

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE0/196235A BE877614A (fr)	1978-07-12	1979-07-10	Rotor d'helicoptere a sommier comportant un amortisseur aisement remplacable

Country Status (12)

Country	Link
US (1)	US4244677A (it)
AU (1)	AU523370B2 (it)
BE (1)	BE877614A (it)
BR (1)	BR7904241A (it)
CA (1)	CA1110606A (it)
CH (1)	CH637890A5 (it)
DE (1)	DE2927263A1 (it)
FR (1)	FR2430885A1 (it)
GB (1)	GB2025340B (it)
IL (1)	IL57704A (it)
IT (1)	IT1122106B (it)
NO (1)	NO146273C (it)

Families Citing this family (46)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2903524C2 (de) *	1979-01-31	1982-02-25	Messerschmitt-Bölkow-Blohm GmbH, 8000 München	Schlag- und schwenkgelenkloser Anschluß von Rotorblättern eines Drehflügelflugzeuges
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
US4427340A (en)	1982-06-24	1984-01-24	Bell Helicopter Textron Inc.	Soft inplane bearingless helicopter rotor
DE3241754C2 (de) *	1982-11-11	1986-02-06	Messerschmitt-Bölkow-Blohm GmbH, 8000 München	Rotor, insbesondere eines Drehflügelflugzeuges
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
DE3526470C1 (de) *	1985-07-24	1987-01-02	Messerschmitt Boelkow Blohm	Rotor,insbesondere eines Drehfluegelflugzeugs
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
DE3824815A1 (de) *	1988-07-21	1990-01-25	Messerschmitt Boelkow Blohm	Rotor, insbesondere eines drehfluegelflugzeugs, abstuetzung einer blattsteuerhuelle
DE3824816A1 (de) *	1988-07-21	1990-01-25	Messerschmitt Boelkow Blohm	Federelement zur drehwinkelbeweglichen verbindung zweiter bauteile
GB8922338D0 (en) *	1989-10-04	1989-11-22	Westland Helicopters	Helicopter rotors
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
CA2055202C (en) *	1990-12-17	1992-06-18	Francis E. Byrnes	Snubber-bearing with combined elastomer laminates
US5188513A (en) *	1990-12-17	1993-02-23	United Technologies Corporation	Snubber-bearing with combined elastomer laminates
US5340279A (en) *	1992-06-22	1994-08-23	United Technologies Corporation	Snubber assembly for a rotor assembly having ducted, coaxial counter-rotating rotors
KR950704630A (ko) *	1992-12-23	1995-11-20	스테펜 슈니버거	관형 엘라스토머 댐퍼(tubular elastomer damper)
US5913659A (en) *	1993-11-22	1999-06-22	United Technologies Corporation	Apparatus and method for adjusting rotor blade tracking
US5499903A (en) *	1994-10-18	1996-03-19	United Technologies Corporation	Snubber bearing mounting assembly for bearingless rotors
US5460487A (en) *	1994-11-09	1995-10-24	United Technologies Corporation	Pitch adjustment assembly for bearingless main rotors
FR2728540A1 (fr) *	1994-12-22	1996-06-28	Eurocopter France	Rotor sans articulation a anneaux intermediaires de commande de pas
US6024325A (en) *	1997-01-09	2000-02-15	Cartercopters, Llc	Rotor for rotary wing aircraft
FR2775951B1 (fr) *	1998-03-16	2001-09-07	Rene Mouille	Pale de rotor, notamment pour le rotor arriere anticouple d'un helicoptere
FR2778165B1 (fr)	1998-04-29	2000-07-13	Eurocopter France	Rotor sans articulation avec demi-paliers precomprimes d'appui des manchettes de pied de pale sur des lames torsibles d'emplanture des pales
DE19915085C2 (de) *	1998-05-28	2002-03-14	Eurocopter Deutschland	Rotorblatt für einen lagerlosen Rotor eines Hubschraubers
ITMI991124A1 (it)	1998-05-28	2000-11-21	Eurocopter Deutschland	Pala per un rotore privo di supporto di un elicottero
ITMI991127A1 (it) *	1998-05-28	2000-11-21	Eurocopter Deutschland	Pala per un rotore privo di supporto di un elicottero
EP1070662B1 (de)	1999-07-20	2003-06-11	Eurocopter Deutschland GmbH	Rotorblatt für einen lagerlosen Rotor eines Hubschraubers
US6371681B1 (en) *	1999-09-20	2002-04-16	Bell Helicopter Textron Inc.	Anti-rotation clip
US20020113349A1 (en) *	2001-02-09	2002-08-22	Rivin Evgeny I.	Nonlinear and adjustable bushings
US6588967B2 (en) *	2001-04-06	2003-07-08	Evgeny I. Rivin	Joint
FR2839945B1 (fr)	2002-05-24	2004-08-13	Hutchinson	Dispositif combine amortisseur-rotule pour rotor d'helicoptere
US6695583B2 (en) *	2002-05-30	2004-02-24	Sikorsky Aircraft Corporation	Snubber-vibration damper system for a bearingless main rotor
US6827553B2 (en) *	2003-01-15	2004-12-07	Lord Corporation	Flexbeam damper assembly having transition shim clamp device
US6848886B2 (en) *	2003-04-18	2005-02-01	Sikorsky Aircraft Corporation	Snubber
CN102182787A (zh) *	2003-08-27	2011-09-14	贝尔直升机泰克斯特龙公司	双弹簧刚度阻尼器
DE102007035970A1 (de) *	2007-07-30	2009-02-12	Ims Gear Gmbh	Elektrische Lenkvorrichtung für Kraftfahrzeuge
US8122586B2 (en)	2008-11-18	2012-02-28	The Boeing Company	Method for connecting a tension-torsion strap
US9884680B2 (en) *	2008-12-11	2018-02-06	Sikorsky Aircraft Corporation	Elastomeric bearing system motion limiter
WO2011062639A2 (en) *	2009-11-23	2011-05-26	Lord Corporation	A rotary wing aircraft bearing for rotary wing aircraft motions
US9068621B1 (en)	2010-11-23	2015-06-30	Lord Corporation	Rotary wing aircraft bearing for rotary wing aircraft motions
EP2504231B1 (en) *	2009-11-23	2017-03-15	LORD Corporation	Elastomeric high capacity laminated rotary wing aircraft bearing
CN103900801B (zh) *	2012-12-25	2016-12-28	中国直升机设计研究所	一种叉形件疲劳试验装置
US9682773B2 (en)	2013-06-25	2017-06-20	The Boeing Company	Systems and methods for blade attachment
US10793264B2 (en) *	2014-06-27	2020-10-06	Sikorsky Aircraft Corporation	Flex beam clamp for rotor assembly
EP3371049B1 (en) *	2015-11-02	2022-03-09	Sikorsky Aircraft Corporation	Rotor blade snubber retainer for a rotary wing aircraft
US20240294246A1 (en) *	2023-03-01	2024-09-05	Textron Innovations Inc.	Rotor spindle assembly with tapered interference joint

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3484174A (en) *	1968-04-08	1969-12-16	Kaman Corp	Rotary wing system
US3700352A (en) *	1971-03-05	1972-10-24	Lord Corp	Rotor system
CA951301A (en) *	1971-04-08	1974-07-16	United Aircraft Corporation	Helicopter rotor system
US3874815A (en) *	1973-11-15	1975-04-01	Boeing Co	Rotary head assembly for rotary wing aircraft
US3874820A (en) *	1974-04-08	1975-04-01	United Aircraft Corp	Hingeless in-plane rotor blade design
FR2285298A1 (fr) *	1974-09-19	1976-04-16	Aerospatiale	Agencement de rotor de queue pour giravions
US4008980A (en) *	1975-06-26	1977-02-22	United Technologies Corporation	Composite helicopter spar and means to alleviate stress concentration
US4093400A (en) *	1976-12-15	1978-06-06	United Technologies Corporation	Cross beam rotor
US4087203A (en) *	1977-01-07	1978-05-02	United Technologies Corporation	Cross beam rotor
FR2397325A1 (fr) *	1977-07-13	1979-02-09	Aerospatiale	Moyeu de rotor, en particulier pour le rotor principal d'un helicoptere

1978
- 1978-07-12 US US05/924,110 patent/US4244677A/en not_active Expired - Lifetime
1979
- 1979-06-29 CA CA330,919A patent/CA1110606A/en not_active Expired
- 1979-07-02 IL IL57704A patent/IL57704A/xx not_active IP Right Cessation
- 1979-07-02 GB GB7922938A patent/GB2025340B/en not_active Expired
- 1979-07-05 DE DE19792927263 patent/DE2927263A1/de active Granted
- 1979-07-05 BR BR7904241A patent/BR7904241A/pt unknown
- 1979-07-09 CH CH638179A patent/CH637890A5/de not_active IP Right Cessation
- 1979-07-10 BE BE0/196235A patent/BE877614A/xx not_active IP Right Cessation
- 1979-07-10 NO NO792286A patent/NO146273C/no unknown
- 1979-07-10 AU AU48808/79A patent/AU523370B2/en not_active Ceased
- 1979-07-10 FR FR7917849A patent/FR2430885A1/fr active Granted
- 1979-07-10 IT IT24241/79A patent/IT1122106B/it active

Also Published As

Publication number	Publication date
IT1122106B (it)	1986-04-23
US4244677A (en)	1981-01-13
FR2430885B1 (it)	1983-10-28
CH637890A5 (de)	1983-08-31
AU4880879A (en)	1980-01-17
IL57704A (en)	1982-09-30
NO146273C (no)	1982-09-01
BR7904241A (pt)	1980-04-15
AU523370B2 (en)	1982-07-22
DE2927263C2 (it)	1989-11-02
NO792286L (no)	1980-01-15
FR2430885A1 (fr)	1980-02-08
IT7924241A0 (it)	1979-07-10
DE2927263A1 (de)	1980-01-24
GB2025340A (en)	1980-01-23
GB2025340B (en)	1982-09-02
NO146273B (no)	1982-05-24
CA1110606A (en)	1981-10-13

Legal Events

Date

Code

Title

Description

1994-01-31

RE

Patent lapsed

Owner name: UNITED TECHNOLOGIES CORP.

Effective date: 19930731

Publication	Publication Date	Title
BE877614A (fr)	1979-11-05	Rotor d'helicoptere a sommier comportant un amortisseur aisement remplacable
FR2298040A1 (fr)	1976-08-13	Piston d'amortisseur
BR7906562A (pt)	1980-06-03	Conjunto amortecedor de vibracao
FR2557942B1 (fr)	1990-11-23	Disque amortisseur
IT7919990A0 (it)	1979-02-07	Dispositivo per attenuare le vibrazioni di un rotore di giroplano.
IT7967938A0 (it)	1979-05-04	Perfezionamento agli stantuffi per ammortizzatori
BE878166A (fr)	1979-12-03	Absorbeur par resonance
JPS5525692A (en)	1980-02-23	Doubleesuspended vibration absorber
DE3875926D1 (de)	1992-12-17	Schwungrad mit einem schwingungsdaempfer.
GB2027847B (en)	1982-10-06	Extended travel vibration damper assembly
SE421870B (sv)	1982-02-08	Centrifugalseparator med en horisontellt lagrad rotor
AR218713A1 (es)	1980-06-30	Amortiguador
FR2535032B1 (fr)	1987-12-11	Insolateur a absorbeur angulaire vertical
FR2578610B1 (fr)	1989-12-22	Disque amortisseur
BR7903898A (pt)	1980-03-04	Amortecedor de vibracoes para veios
FR2332176A1 (fr)	1977-06-17	Amortisseur bifilaire pour rotor d'helicoptere
YU39880B (en)	1985-04-30	Rotor with a damping buffer at a generator with salient poles
BR7906526A (pt)	1980-06-03	Amortecedor de vibracoes
BR7903043A (pt)	1979-12-04	Amortecedor rotativo de vibracao
BR7903139A (pt)	1979-12-11	Amortecedor de vibracao torcional
BR8106346A (pt)	1982-06-22	Rebitador com vibracao amortecida
BR8106344A (pt)	1982-06-22	Rebitador com vibracao amortecida
FR2572150B3 (fr)	1986-11-21	Amortisseur a frottement
BR7701817A (pt)	1978-01-17	Amortecedor de vibracao para um rotor
IT1168898B (it)	1987-05-20	Supporto elastico a smorzamento idraulico