CH624899A5 - - Google Patents
Download PDFInfo
- Publication number
- CH624899A5 CH624899A5 CH1487777A CH1487777A CH624899A5 CH 624899 A5 CH624899 A5 CH 624899A5 CH 1487777 A CH1487777 A CH 1487777A CH 1487777 A CH1487777 A CH 1487777A CH 624899 A5 CH624899 A5 CH 624899A5
- Authority
- CH
- Switzerland
- Prior art keywords
- brackets
- axis
- transmission unit
- power transmission
- rotor
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 claims description 67
- 230000009471 action Effects 0.000 claims description 26
- 229920001971 elastomer Polymers 0.000 claims description 20
- 239000000806 elastomer Substances 0.000 claims description 20
- 239000002184 metal Substances 0.000 claims description 14
- 238000013016 damping Methods 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 239000000725 suspension Substances 0.000 description 29
- 238000005096 rolling process Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 5
- 230000005484 gravity Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000036755 cellular response Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 125000001475 halogen functional group Chemical group 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/001—Vibration damping devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/001—Vibration damping devices
- B64C2027/002—Vibration damping devices mounted between the rotor drive and the fuselage
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S416/00—Fluid reaction surfaces, i.e. impellers
- Y10S416/50—Vibration damping features
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Vibration Prevention Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/749,131 US4111386A (en) | 1976-12-09 | 1976-12-09 | Helicopter rotor and transmission mounting and vibration isolation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH624899A5 true CH624899A5 (no) | 1981-08-31 |
Family
ID=25012393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1487777A CH624899A5 (no) | 1976-12-09 | 1977-12-06 |
Country Status (17)
| Country | Link |
|---|---|
| US (1) | US4111386A (no) |
| JP (1) | JPS5378598A (no) |
| AU (1) | AU511090B2 (no) |
| BE (1) | BE861601A (no) |
| BR (1) | BR7708151A (no) |
| CA (1) | CA1066683A (no) |
| CH (1) | CH624899A5 (no) |
| DE (1) | DE2753892A1 (no) |
| DK (1) | DK547677A (no) |
| EG (1) | EG13105A (no) |
| FR (1) | FR2373443A1 (no) |
| GB (1) | GB1563166A (no) |
| IL (1) | IL53523A (no) |
| IT (1) | IT1088385B (no) |
| NL (1) | NL7713561A (no) |
| NO (1) | NO142515C (no) |
| PL (1) | PL119849B1 (no) |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2043573B (en) * | 1979-02-26 | 1983-03-23 | Textron Inc | Helicopter transmission mounting |
| GB2043574B (en) * | 1979-03-01 | 1982-12-22 | Textron Inc | Pylon mounting system for reducing helicopter vibration |
| US4362281A (en) * | 1979-03-01 | 1982-12-07 | Textron, Inc. | Pylon mounting system for reducing helicopter vibration |
| US4275992A (en) * | 1979-04-09 | 1981-06-30 | Textron, Inc. | Mode controlled attachment of rotor mounted components |
| 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 |
| US4725019A (en) * | 1986-08-11 | 1988-02-16 | The Boeing Company | Aircraft engine mount with vertical vibration isolation |
| DE3706379A1 (de) * | 1987-02-27 | 1988-09-08 | Porsche Ag | Aufhaengungssystem fuer ein antriebsaggregat eines hubschraubers |
| US5641133A (en) * | 1994-05-11 | 1997-06-24 | Mcdonnell Douglas Helicopter Co. | Rotorcraft fuselage modal frequency placement using resilient mounting connections |
| US5762295A (en) * | 1996-02-23 | 1998-06-09 | Lord Corporation | Dynamically optimized engine suspension system |
| US5713438A (en) * | 1996-03-25 | 1998-02-03 | Lord Corporation | Method and apparatus for non-model based decentralized adaptive feedforward active vibration control |
| US5716300A (en) * | 1996-05-01 | 1998-02-10 | Sikorsky Aircraft Corporation | Isolated ring gear for planetary gear drive systems |
| US6199801B1 (en) * | 1997-12-01 | 2001-03-13 | Csa Engineering, Inc. | Whole-spacecraft passive isolation devices |
| US6290183B1 (en) | 1999-10-19 | 2001-09-18 | Csa Engineering, Inc. | Three-axis, six degree-of-freedom, whole-spacecraft passive vibration isolation system |
| US6644590B2 (en) | 2000-09-15 | 2003-11-11 | General Dynamics Advanced Information Systems, Inc. | Active system and method for vibration and noise reduction |
| EP1320488A2 (en) * | 2000-09-27 | 2003-06-25 | Lord Corporation | Mounting assembly for an aircraft auxiliary power unit |
| US7296766B2 (en) * | 2004-07-13 | 2007-11-20 | Sikorsky Aircraft Corporation | Lightweight structural damping assembly |
| PL2179922T3 (pl) * | 2008-10-21 | 2012-08-31 | Agustawestland Spa | Helikopter |
| US8770513B2 (en) | 2011-11-30 | 2014-07-08 | Honeywell International Inc. | Resilient aircraft engine mounts and aircraft engine mounting systems including the same |
| US8955809B2 (en) * | 2012-12-05 | 2015-02-17 | Hamilton Sundstrand Corporation | Three-way mount bracket for aircraft cabin air supply system |
| EP2962935B1 (en) | 2014-07-04 | 2016-09-21 | AGUSTAWESTLAND S.p.A. | Helicopter with noise and vibration damping transmission mounting |
| US10384790B2 (en) | 2016-02-01 | 2019-08-20 | Bell Textron Inc. | Engine mount assemblies for aircraft |
| US10336459B2 (en) | 2016-02-01 | 2019-07-02 | Bell Helicopter Textron Inc. | Clamped splines for aircraft engine mount assemblies |
| US10598251B2 (en) * | 2017-04-14 | 2020-03-24 | The Boeing Company | Vibration damping link and method therefore |
| US20180372210A1 (en) * | 2017-06-26 | 2018-12-27 | Bell Helicopter Textron Inc. | Safety Bypass Valve |
| US11167842B2 (en) * | 2017-10-10 | 2021-11-09 | Bell Helicopter Textron Inc. | Mount for supporting a component and attenuating noise |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2648509A (en) * | 1947-04-17 | 1953-08-11 | Lord Mfg Co | Vibration controller for a resilient mounting |
| US2722391A (en) * | 1952-05-31 | 1955-11-01 | United Aircraft Corp | Engine mount |
| US2761638A (en) * | 1953-11-17 | 1956-09-04 | Gordon L Getline | Vibration-isolating power plant mounting system |
| US3163378A (en) * | 1963-08-27 | 1964-12-29 | Bell Aerospace Corp | Rotary wing aircraft pylon mounting |
| GB1380710A (en) * | 1970-12-29 | 1975-01-15 | Kawasaki Heavy Ind Ltd | Rotary wing aircraft |
| US3908399A (en) * | 1973-04-23 | 1975-09-30 | United Technologies Corp | Primary flight control with isolated gear box |
| FR2228662B1 (no) * | 1973-05-08 | 1976-11-12 | Aerospatiale | |
| US3863871A (en) * | 1973-05-14 | 1975-02-04 | Jr Daniel T Meisenheimer | Vibration isolation mounting assembly |
| FR2232481B1 (no) * | 1973-06-08 | 1976-05-07 | Aerospatiale | |
| GB1468359A (en) * | 1973-10-09 | 1977-03-23 | Westland Aircraft Ltd | Bifilar vibration dampers |
| US3858831A (en) * | 1973-12-26 | 1975-01-07 | Textron Inc | Nodal beam inertial flexure |
| FR2270144B1 (no) * | 1974-05-09 | 1976-10-15 | Aerospatiale |
-
1976
- 1976-12-09 US US05/749,131 patent/US4111386A/en not_active Expired - Lifetime
-
1977
- 1977-12-02 PL PL1977202794A patent/PL119849B1/pl unknown
- 1977-12-02 IT IT30312/77A patent/IT1088385B/it active
- 1977-12-02 IL IL53523A patent/IL53523A/xx unknown
- 1977-12-02 DE DE19772753892 patent/DE2753892A1/de not_active Withdrawn
- 1977-12-02 AU AU31168/77A patent/AU511090B2/en not_active Expired
- 1977-12-06 CH CH1487777A patent/CH624899A5/de not_active IP Right Cessation
- 1977-12-07 CA CA292,588A patent/CA1066683A/en not_active Expired
- 1977-12-07 NO NO774171A patent/NO142515C/no unknown
- 1977-12-07 BE BE183251A patent/BE861601A/xx unknown
- 1977-12-07 NL NL7713561A patent/NL7713561A/xx not_active Application Discontinuation
- 1977-12-08 DK DK547677A patent/DK547677A/da not_active Application Discontinuation
- 1977-12-08 FR FR7736967A patent/FR2373443A1/fr not_active Withdrawn
- 1977-12-08 BR BR7708151A patent/BR7708151A/pt unknown
- 1977-12-09 JP JP14869077A patent/JPS5378598A/ja active Pending
- 1977-12-09 GB GB51423/77A patent/GB1563166A/en not_active Expired
- 1977-12-10 EG EG681/77A patent/EG13105A/xx active
Also Published As
| Publication number | Publication date |
|---|---|
| EG13105A (en) | 1980-12-31 |
| IT1088385B (it) | 1985-06-10 |
| GB1563166A (en) | 1980-03-19 |
| PL202794A1 (pl) | 1978-07-31 |
| IL53523A (en) | 1982-11-30 |
| FR2373443A1 (fr) | 1978-07-07 |
| DK547677A (da) | 1978-06-10 |
| AU3116877A (en) | 1979-06-07 |
| AU511090B2 (en) | 1980-07-24 |
| US4111386A (en) | 1978-09-05 |
| CA1066683A (en) | 1979-11-20 |
| NO774171L (no) | 1978-06-12 |
| BE861601A (fr) | 1978-03-31 |
| NL7713561A (nl) | 1978-06-13 |
| JPS5378598A (en) | 1978-07-12 |
| DE2753892A1 (de) | 1978-06-15 |
| NO142515C (no) | 1980-09-03 |
| PL119849B1 (en) | 1982-01-30 |
| BR7708151A (pt) | 1978-08-15 |
| NO142515B (no) | 1980-05-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |