IN151974B - - Google Patents
Info
- Publication number
- IN151974B IN151974B IN385/DEL/79A IN385DE1979A IN151974B IN 151974 B IN151974 B IN 151974B IN 385DE1979 A IN385DE1979 A IN 385DE1979A IN 151974 B IN151974 B IN 151974B
- Authority
- IN
- India
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/51—Damping of blade movements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Toys (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7816521A FR2427251A1 (fr) | 1978-06-02 | 1978-06-02 | Rotor pour giravion |
FR7911585A FR2456034A2 (fr) | 1979-05-08 | 1979-05-08 | Rotor pour giravion |
Publications (1)
Publication Number | Publication Date |
---|---|
IN151974B true IN151974B (it) | 1983-09-17 |
Family
ID=26220617
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IN385/DEL/79A IN151974B (it) | 1978-06-02 | 1979-05-30 |
Country Status (5)
Country | Link |
---|---|
US (2) | US4304525A (it) |
DE (2) | DE2953675C2 (it) |
GB (1) | GB2025338B (it) |
IN (1) | IN151974B (it) |
IT (1) | IT1121236B (it) |
Families Citing this family (42)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1117626B (it) * | 1979-02-02 | 1986-02-17 | Aereonautiche Giovanni Augusta | Rotore articolato per elicotteri |
IT1129070B (it) * | 1980-04-03 | 1986-06-04 | Agusta Aeronaut Costr | Rotore a giunti elastomerici per elicotteri |
FR2516891A1 (fr) * | 1981-11-25 | 1983-05-27 | Aerospatiale | Rotor pour giravions, a articulations integrees dans le pied de pale |
US4543040A (en) * | 1982-09-30 | 1985-09-24 | The Boeing Company | Helicopter rotor system |
IT1157122B (it) * | 1982-12-06 | 1987-02-11 | Agusta Aeronaut Costr | Rotore per elicottero |
IT1159375B (it) * | 1983-03-15 | 1987-02-25 | Agusta Aeronaut Costr | Rotore per elicotteri |
FR2551723B1 (fr) * | 1983-09-08 | 1985-12-13 | Aerospatiale | Dispositif a butees escamotables pour limiter les battements des pales d'un rotor principal de giravion |
IT1182448B (it) * | 1985-02-19 | 1987-10-05 | Agusta Aeronaut Costr | Mozzo metallico per un rotore di elicottero |
FR2584997B1 (fr) * | 1985-07-22 | 1987-11-13 | Aerospatiale | Dispositif de butees de battement pour rotor de giravion |
FR2584995B1 (fr) * | 1985-07-22 | 1987-11-13 | Aerospatiale | Mat-moyeu integre et tete de rotor de giravion le comportant |
FR2584996B1 (fr) * | 1985-07-22 | 1987-11-13 | Aerospatiale | Mat-moyeu integre et tete de rotor de giravion le comportant |
US4645423A (en) * | 1985-07-29 | 1987-02-24 | United Technologies Corporation | Tension/compression rod arrangement for damping helicopter rotor blade oscillations |
FR2653405B1 (fr) * | 1989-10-20 | 1992-02-07 | Aerospatiale | Dispositif visco-elastique rotatif de rappel elastique et d'amortissement en trainee pour pale de rotor de giravion, et tete de rotor le comportant. |
US5407325A (en) * | 1990-09-27 | 1995-04-18 | Societe Nationale Industrielle Et Aerospatiale | Rotor head for rotary wing aircraft |
FR2671049B1 (fr) * | 1990-12-27 | 1993-12-24 | Aerospatiale | Corps de moyeu de rotor de giravion. |
FR2671050B1 (fr) * | 1990-12-27 | 1993-04-16 | Aerospatiale | Tete de rotor articule de giravion a manchons intermediaires entre moyeu et pales. |
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 |
FR2733961B1 (fr) * | 1995-05-12 | 1997-07-18 | Eurocopter France | Dispositif d'amortissement de trainee des pales d'un rotor |
US5716193A (en) * | 1995-07-21 | 1998-02-10 | Eurocopter France | Installation for affording electrical continuity for rotorcraft rotor |
FR2764578B1 (fr) | 1997-06-13 | 1999-09-10 | Eurocopter France | Rotor de giravion a moyeu bi-plateau et commande de pas partiellement externe |
DE19837802C1 (de) * | 1998-08-20 | 1999-10-28 | Eurocopter Deutschland | Rotorblatt für einen lagerlosen Rotor eines Hubschraubers |
FR2817830B1 (fr) * | 2000-12-11 | 2003-02-14 | Eurocopter France | Perfectionnements aux rotors de giravion a pales a repliage manuel et installation de connexion electrique de degivrage |
FR2826933B1 (fr) | 2001-07-04 | 2003-09-26 | Eurocopter France | Amortisseur de trainee a inertie fluide pour rotor de giravion |
FR2835506B1 (fr) | 2002-02-06 | 2004-03-12 | Eurocopter France | Amortisseur de trainee a double piston pour rotor de giravion |
FR2890937B1 (fr) * | 2005-09-21 | 2009-04-24 | Eurocopter France | Rotor de giravion a pales articulees en battement et en trainee |
FR2898581B1 (fr) * | 2006-03-15 | 2009-01-09 | Eurocopter France | Pale comportant une manchette integree et rotor de giravion pourvu d'une telle pale. |
CA2650355C (en) * | 2006-05-12 | 2012-04-17 | Bell Helicopter Textron Inc. | Yoke with notched arm roots |
US7841829B2 (en) * | 2006-11-15 | 2010-11-30 | Sikorsky Aircraft Corporation | Rotor system with pitch flap coupling |
EP2256035B1 (en) * | 2009-05-27 | 2012-05-23 | Eurocopter Deutschland GmbH | Rotor blade with flat unidirectional fiber layers |
CN101936337A (zh) * | 2010-09-10 | 2011-01-05 | 中国航空工业集团公司北京航空材料研究院 | 一种直升机旋翼用球面弹性轴承及其成型方法 |
CN102011798B (zh) * | 2010-11-19 | 2012-07-18 | 中国航空工业集团公司北京航空材料研究院 | 一种球面弹性轴承及成型球面弹性轴承的注胶方法 |
US8695918B2 (en) | 2012-01-10 | 2014-04-15 | Bell Helicopter Textron Inc. | Bearing restraint for rotor systems |
US8857756B2 (en) * | 2012-07-19 | 2014-10-14 | Bell Helicopter Textron Inc. | Elastomeric bearing housing and mating grip for helicopter rotor system |
US20150078909A1 (en) * | 2013-09-16 | 2015-03-19 | Bell Helicopter Textron Inc. | Rotor blade and structural system for coupling the rotor blade in a rotor hub |
FR3017855B1 (fr) * | 2014-02-21 | 2016-04-29 | Airbus Helicopters | Rotor pour giravion comportant un mecanisme de butee en battement, et giravion |
CN104632885A (zh) * | 2014-12-03 | 2015-05-20 | 中国航空工业集团公司北京航空材料研究院 | 一种橡胶弹性轴承 |
CN105156470B (zh) * | 2015-05-29 | 2017-08-15 | 中国航空工业集团公司北京航空材料研究院 | 一种弹性轴承等刚度设计方法 |
RU2616771C2 (ru) * | 2015-07-20 | 2017-04-18 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Тюменский индустриальный университет" (ТИУ) | Несущий винт вертолета |
US12060148B2 (en) | 2022-08-16 | 2024-08-13 | Honeywell International Inc. | Ground resonance detection and warning system and method |
CN115451013A (zh) * | 2022-09-26 | 2022-12-09 | 株洲时代新材料科技股份有限公司 | 一种叠层橡胶-金属球面弹性轴承的注胶成型方法及装置 |
CN115924071A (zh) * | 2023-03-13 | 2023-04-07 | 扬州平航航空动力技术有限公司 | 一种倾转旋翼机桨毂系统 |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2815821A (en) * | 1955-03-24 | 1957-12-10 | United Aircraft Corp | Helicopter rotor blade connection |
US3147810A (en) * | 1962-09-12 | 1964-09-08 | Boeing Co | Restraining mechanism |
US3231222A (en) | 1964-05-20 | 1966-01-25 | Scheutzow Helicopter Corp | Rotary wing aircraft |
DE1456107A1 (de) * | 1964-07-04 | 1968-12-19 | Westland Aircraft Ltd | Drehfluegelflugzeug |
US3282350A (en) * | 1965-10-20 | 1966-11-01 | Boeing Co | Rotor blade mounting construction |
FR2063969B1 (it) | 1969-10-16 | 1974-05-24 | Aerospatiale | |
US3923419A (en) * | 1969-10-16 | 1975-12-02 | Rene Louis Mouille | Damped elastic tie device between rotor blade and hub on rotary-wing aircraft |
CA934732A (en) * | 1970-10-26 | 1973-10-02 | L. Potter James | Rotor system having viscoelastic lead-lag damper |
US3758230A (en) * | 1971-05-13 | 1973-09-11 | J Potter | Rotor system having viscoelastic lead-lag damper |
US3759632A (en) * | 1972-07-05 | 1973-09-18 | United Aircraft Corp | Articulated helicopter rotor |
US3761199A (en) * | 1972-07-14 | 1973-09-25 | United Aircraft Corp | Helicopter rotor with redundant load carrying capability |
IL42948A (en) * | 1972-09-05 | 1976-05-31 | United Aircraft Corp | Helicopter rotor |
GB1432117A (en) * | 1973-05-10 | 1976-04-14 | Aerospatiale | Rotor for rotating wing type aircraft |
FR2305343A2 (fr) * | 1975-03-26 | 1976-10-22 | Aerospatiale | Rotor pour giravions |
DE2333138C2 (de) * | 1973-06-29 | 1983-12-08 | Robert Bosch Gmbh, 7000 Stuttgart | Dieselmotor mit einem Stellglied zum Einstellen der je Arbeitszyklus eingespritzten Kraftstoffmenge |
GB1500007A (en) * | 1974-08-22 | 1978-02-08 | Westland Aircraft Ltd | Rotor for rotary wing aircraft |
US3932059A (en) * | 1975-01-10 | 1976-01-13 | United Technologies Corporation | Droop stops for helicopter rotor having elastomeric bearings |
US4028001A (en) * | 1975-07-28 | 1977-06-07 | Westland Aircraft Limited | Rotor for rotary wing aircraft |
JPS5264797A (en) * | 1975-11-26 | 1977-05-28 | Kawasaki Heavy Ind Ltd | Rotor head of rotary cascade aircraft |
US4028002A (en) * | 1976-03-01 | 1977-06-07 | Lord Corporation | Rotor blade retention system |
US4178130A (en) * | 1976-04-06 | 1979-12-11 | United Technologies Corporation | Helicopter rotor having lead-lag damper operable with pitch and flap decoupling |
US4105365A (en) * | 1976-10-04 | 1978-08-08 | United Technologies Corporation | Helicopter rotor lead-lag damper |
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1979
- 1979-05-25 GB GB7918301A patent/GB2025338B/en not_active Expired
- 1979-05-30 IN IN385/DEL/79A patent/IN151974B/en unknown
- 1979-05-30 US US06/043,878 patent/US4304525A/en not_active Expired - Lifetime
- 1979-06-01 DE DE2953675A patent/DE2953675C2/de not_active Expired
- 1979-06-01 DE DE2922469A patent/DE2922469C2/de not_active Expired
- 1979-06-01 IT IT23223/79A patent/IT1121236B/it active
-
1981
- 1981-09-08 US US06/300,091 patent/US4407633A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US4304525A (en) | 1981-12-08 |
IT7923223A0 (it) | 1979-06-01 |
DE2922469A1 (de) | 1979-12-06 |
DE2922469C2 (de) | 1983-09-29 |
GB2025338A (en) | 1980-01-23 |
DE2953675C2 (de) | 1986-10-23 |
US4407633A (en) | 1983-10-04 |
IT1121236B (it) | 1986-03-26 |
GB2025338B (en) | 1982-08-04 |