IL94680A0 - Pitch change bearing system - Google Patents
Pitch change bearing systemInfo
- Publication number
- IL94680A0 IL94680A0 IL94680A IL9468090A IL94680A0 IL 94680 A0 IL94680 A0 IL 94680A0 IL 94680 A IL94680 A IL 94680A IL 9468090 A IL9468090 A IL 9468090A IL 94680 A0 IL94680 A0 IL 94680A0
- Authority
- IL
- Israel
- Prior art keywords
- bearing system
- pitch change
- change bearing
- pitch
- change
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/38—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type
- F16F1/393—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type with spherical or conical sleeves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Support Of The Bearing (AREA)
- Sliding-Contact Bearings (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/421,166 US4986735A (en) | 1989-10-13 | 1989-10-13 | Pitch change bearing system |
Publications (1)
Publication Number | Publication Date |
---|---|
IL94680A0 true IL94680A0 (en) | 1991-04-15 |
Family
ID=23669443
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IL94680A IL94680A0 (en) | 1989-10-13 | 1990-06-08 | Pitch change bearing system |
Country Status (7)
Country | Link |
---|---|
US (1) | US4986735A (de) |
EP (1) | EP0448654B1 (de) |
JP (1) | JP2696430B2 (de) |
AU (1) | AU6161290A (de) |
DE (1) | DE69019335T2 (de) |
IL (1) | IL94680A0 (de) |
WO (1) | WO1991005701A1 (de) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5110259A (en) * | 1989-10-13 | 1992-05-05 | Bell Helicopter Textron Inc. | Pitch change bearing system |
US5083725A (en) * | 1990-10-11 | 1992-01-28 | United Technologies Corporation | Elastomeric swashplate configuration for helicopters |
US5120195A (en) * | 1990-10-23 | 1992-06-09 | Schmaling David N | Clevis joint capable of accommodating substantial pivotal motion between its joined members and loading along its axis |
US5188513A (en) * | 1990-12-17 | 1993-02-23 | United Technologies Corporation | Snubber-bearing with combined elastomer laminates |
FR2685675B1 (fr) * | 1991-12-26 | 1994-04-01 | Aerospatiale Ste Nationale Indle | Dispositif de palier elastomerique cylindrique a grand debattement angulaire. |
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 |
US7097169B2 (en) * | 2004-08-04 | 2006-08-29 | Skf Usa Inc. | Elastomeric bearing with modified cylindrical core |
US8360727B2 (en) * | 2009-01-19 | 2013-01-29 | Textron Innovations Inc. | Yoke and bearing fitting assembly for rotors |
US9702402B2 (en) * | 2011-10-28 | 2017-07-11 | Textron Innovations Inc. | Increased capacity spherical lined bearings |
US9085357B2 (en) * | 2011-11-15 | 2015-07-21 | Textron Innovations Inc. | Rotor hub bearing system |
US8926281B2 (en) | 2012-02-21 | 2015-01-06 | Textron Innovations Inc. | Compact rotorcraft dual-element spherical elastomeric centrifugal-force bearing assembly |
WO2015066472A1 (en) * | 2013-11-01 | 2015-05-07 | Lord Corporation | Improved riser tensioner bearing system |
US9657816B2 (en) * | 2013-11-01 | 2017-05-23 | Bell Helicopter Textron Inc. | Drive link for tiltrotor rotor system |
US9796469B2 (en) * | 2014-04-04 | 2017-10-24 | The Boeing Company | Modular rotor craft rotor hub system |
US10309452B2 (en) * | 2014-09-30 | 2019-06-04 | Aktiebolaget Skf | Cylindrical bearing with thermally conductive members |
US20160238068A1 (en) * | 2015-02-12 | 2016-08-18 | Aktiebolaget Skf | Combination spherical and laminated bearing |
US10556676B2 (en) * | 2018-01-29 | 2020-02-11 | Bell Helicopter Textron Inc. | Hybrid yoke |
US10543913B2 (en) * | 2018-01-29 | 2020-01-28 | Bell Helicopter Textron Inc. | Tri-hybrid yoke |
EP4402054A1 (de) * | 2021-09-16 | 2024-07-24 | Supernal, LLC | Rotornabensysteme und -verfahren |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1931026A (en) * | 1930-03-26 | 1933-10-17 | Chrysler Corp | Bearing |
US3362765A (en) * | 1963-05-28 | 1968-01-09 | Plastic & Rubber Prod Co | Shaft bearing and replaceable bearing insert therefor |
US3556673A (en) * | 1968-10-11 | 1971-01-19 | Bolkow Gmbh | Rotor mounting |
US3782854A (en) * | 1972-07-05 | 1974-01-01 | United Aircraft Corp | Elastomeric bearing for a helicopter rotor |
US3807896A (en) * | 1972-10-10 | 1974-04-30 | Textron Inc | Concentric tube spring rotor mount |
US3829239A (en) * | 1973-02-21 | 1974-08-13 | United Aircraft Corp | Multiple element journal bearing |
US3942910A (en) * | 1974-05-13 | 1976-03-09 | Textron, Inc. | Grip-yoke assembly with a redundant centrifugal load support |
US4522563A (en) * | 1982-07-06 | 1985-06-11 | Bell Helicopter Textron, Inc. | Elastomeric system for mounting a helicopter rotor |
US4543040A (en) * | 1982-09-30 | 1985-09-24 | The Boeing Company | Helicopter rotor system |
EP0135296B1 (de) * | 1983-08-22 | 1987-06-03 | Westland Group plc | Hubschrauberrotor |
-
1989
- 1989-10-13 US US07/421,166 patent/US4986735A/en not_active Expired - Lifetime
-
1990
- 1990-06-08 IL IL94680A patent/IL94680A0/xx unknown
- 1990-06-25 WO PCT/US1990/003511 patent/WO1991005701A1/en active IP Right Grant
- 1990-06-25 AU AU61612/90A patent/AU6161290A/en not_active Abandoned
- 1990-06-25 EP EP90912414A patent/EP0448654B1/de not_active Expired - Lifetime
- 1990-06-25 JP JP2511510A patent/JP2696430B2/ja not_active Expired - Fee Related
- 1990-06-25 DE DE69019335T patent/DE69019335T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US4986735A (en) | 1991-01-22 |
DE69019335D1 (de) | 1995-06-14 |
WO1991005701A1 (en) | 1991-05-02 |
AU6161290A (en) | 1991-05-16 |
DE69019335T2 (de) | 1995-09-14 |
EP0448654A4 (en) | 1993-03-31 |
EP0448654A1 (de) | 1991-10-02 |
EP0448654B1 (de) | 1995-05-10 |
JP2696430B2 (ja) | 1998-01-14 |
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