IT7819916A0 - Dispositivo di montaggio per pale di rotore in elicotteri. - Google Patents
Dispositivo di montaggio per pale di rotore in elicotteri.Info
- Publication number
- IT7819916A0 IT7819916A0 IT7819916A IT1991678A IT7819916A0 IT 7819916 A0 IT7819916 A0 IT 7819916A0 IT 7819916 A IT7819916 A IT 7819916A IT 1991678 A IT1991678 A IT 1991678A IT 7819916 A0 IT7819916 A0 IT 7819916A0
- Authority
- IT
- Italy
- Prior art keywords
- helicopters
- mounting device
- rotor blades
- blades
- rotor
- Prior art date
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Support Of The Bearing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Rotary Pumps (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/765,151 US4135856A (en) | 1977-02-03 | 1977-02-03 | Rotor blade retention system |
Publications (1)
Publication Number | Publication Date |
---|---|
IT7819916A0 true IT7819916A0 (it) | 1978-02-02 |
Family
ID=25072785
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT7819916A IT7819916A0 (it) | 1977-02-03 | 1978-02-02 | Dispositivo di montaggio per pale di rotore in elicotteri. |
Country Status (5)
Country | Link |
---|---|
US (1) | US4135856A (it) |
JP (1) | JPS53102600A (it) |
DE (1) | DE2804477A1 (it) |
FR (1) | FR2379431A1 (it) |
IT (1) | IT7819916A0 (it) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4257739A (en) * | 1978-09-11 | 1981-03-24 | Textron, Inc. | Soft inplane helicopter rotor |
IT1117626B (it) * | 1979-02-02 | 1986-02-17 | Aereonautiche Giovanni Augusta | Rotore articolato per elicotteri |
US4430045A (en) | 1979-04-24 | 1984-02-07 | Bell Helicopter Textron, Inc. | Helicopter power train for distributing rotor blade flapping displacements through a plurality of drive train components |
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 |
IT1155132B (it) * | 1982-03-11 | 1987-01-21 | Agusta Aeronaut Costr | Rotore per elicotteri |
IT1157122B (it) * | 1982-12-06 | 1987-02-11 | Agusta Aeronaut Costr | Rotore per elicottero |
FR2584997B1 (fr) * | 1985-07-22 | 1987-11-13 | Aerospatiale | Dispositif de butees de battement pour rotor de giravion |
IT1196800B (it) * | 1986-11-25 | 1988-11-25 | Agusta Aeronaut Costr | Rotore anticoppia per elicotteri |
GB8922338D0 (en) * | 1989-10-04 | 1989-11-22 | Westland Helicopters | Helicopter rotors |
WO1994015113A1 (en) * | 1992-12-23 | 1994-07-07 | United Technologies Corporation | Tubular elastomer damper |
US5913659A (en) * | 1993-11-22 | 1999-06-22 | United Technologies Corporation | Apparatus and method for adjusting rotor blade tracking |
US6862567B1 (en) * | 2000-08-30 | 2005-03-01 | Mindspeed Technologies, Inc. | Noise suppression in the frequency domain by adjusting gain according to voicing parameters |
US6921249B1 (en) * | 2003-06-05 | 2005-07-26 | The United States Of America As Represented By The Secretary Of The Navy | Main rotor shear restraint |
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 |
CH704541A2 (de) * | 2011-02-28 | 2012-08-31 | Marenco Swisshelicopter AG Engineering & Consulting | Rotorblattkopplungsvorrichtung. |
KR101921574B1 (ko) | 2011-04-07 | 2018-11-26 | 로오드 코포레이션 | 항공기 회전익 모션 제어 및 계장화 모션 제어 유체 장치 |
US9085357B2 (en) | 2011-11-15 | 2015-07-21 | Textron Innovations Inc. | Rotor hub bearing system |
US9879722B2 (en) * | 2013-03-11 | 2018-01-30 | Bell Helicopter Textron Inc. | Low shear modulus transition shim for elastomeric bearing bonding in torsional applications |
US9657582B2 (en) * | 2013-03-13 | 2017-05-23 | Bell Helicopter Textron Inc. | Gimbaled tail rotor hub with spherical elastomeric centrifugal force bearing for blade retention and pitch change articulation |
EP2913268B1 (en) * | 2014-02-26 | 2018-08-01 | AIRBUS HELICOPTERS DEUTSCHLAND GmbH | Bearing arrangement with a first bearing layer and a second bearing layer |
US9764831B2 (en) * | 2014-03-10 | 2017-09-19 | Bell Helicopter Textron Inc. | Articulated main rotor hub with inwardly CF bearing and 3% flapping hinge offset |
US9796469B2 (en) * | 2014-04-04 | 2017-10-24 | The Boeing Company | Modular rotor craft rotor hub system |
CA3004054C (en) | 2017-05-05 | 2024-02-13 | Laflamme Aero Inc. | Helicopter rotor hub assembly and helicopter including same |
EP4402054A1 (en) * | 2021-09-16 | 2024-07-24 | Supernal, LLC | Rotor hub systems and methods |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3026942A (en) * | 1959-07-07 | 1962-03-27 | Bell Helicopter Corp | Helicopter rotor system |
US3504989A (en) * | 1967-12-28 | 1970-04-07 | Boeing Co | Rotor system |
US3556673A (en) * | 1968-10-11 | 1971-01-19 | Bolkow Gmbh | Rotor mounting |
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 |
US3807896A (en) * | 1972-10-10 | 1974-04-30 | Textron Inc | Concentric tube spring rotor mount |
US3790302A (en) * | 1972-10-10 | 1974-02-05 | Textron Inc | Tail rotor mounting for coning relief |
US4012169A (en) * | 1973-05-10 | 1977-03-15 | Societe Nationale Industrielle Aerospatiale | Rotor for rotating wing type aircraft |
GB1432117A (en) * | 1973-05-10 | 1976-04-14 | Aerospatiale | Rotor for rotating wing type aircraft |
US3942910A (en) * | 1974-05-13 | 1976-03-09 | Textron, Inc. | Grip-yoke assembly with a redundant centrifugal load support |
-
1977
- 1977-02-03 US US05/765,151 patent/US4135856A/en not_active Expired - Lifetime
-
1978
- 1978-02-02 DE DE19782804477 patent/DE2804477A1/de active Pending
- 1978-02-02 IT IT7819916A patent/IT7819916A0/it unknown
- 1978-02-02 FR FR7802866A patent/FR2379431A1/fr not_active Withdrawn
- 1978-02-03 JP JP1136378A patent/JPS53102600A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
US4135856A (en) | 1979-01-23 |
JPS53102600A (en) | 1978-09-06 |
DE2804477A1 (de) | 1978-08-10 |
FR2379431A1 (fr) | 1978-09-01 |
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