FR2370196A2 - Perfectionnements aux amortisseurs-verins - Google Patents

Perfectionnements aux amortisseurs-verins

Info

Publication number
FR2370196A2
FR2370196A2 FR7633261A FR7633261A FR2370196A2 FR 2370196 A2 FR2370196 A2 FR 2370196A2 FR 7633261 A FR7633261 A FR 7633261A FR 7633261 A FR7633261 A FR 7633261A FR 2370196 A2 FR2370196 A2 FR 2370196A2
Authority
FR
France
Prior art keywords
chamber
cylinders
shock absorbers
elastic means
expansions
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7633261A
Other languages
English (en)
Other versions
FR2370196B2 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Messier Hispano SA
Original Assignee
Messier Hispano SA
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.)
Filing date
Publication date
Priority claimed from FR7603126A external-priority patent/FR2340482A1/fr
Application filed by Messier Hispano SA filed Critical Messier Hispano SA
Priority to FR7633261A priority Critical patent/FR2370196A2/fr
Priority to IT19663/77A priority patent/IT1079171B/it
Priority to GB3597/77A priority patent/GB1563273A/en
Priority to DE2703716A priority patent/DE2703716C2/de
Priority to US05/765,284 priority patent/US4088286A/en
Publication of FR2370196A2 publication Critical patent/FR2370196A2/fr
Application granted granted Critical
Publication of FR2370196B2 publication Critical patent/FR2370196B2/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C25/00—Alighting gear
    • B64C25/32—Alighting gear characterised by elements which contact the ground or similar surface 
    • B64C25/58—Arrangements or adaptations of shock-absorbers or springs
    • B64C25/60—Oleo legs
    • 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
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C25/00—Alighting gear
    • B64C25/001—Devices not provided for in the groups B64C25/02 - B64C25/68
    • B64C2025/008—Comprising means for modifying their length, e.g. for kneeling, for jumping, or for leveling the aircraft

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

L'invention concerne des variantes de réalisations des amortisseurs-vérins faisant l'objet du brevet principal. Une chambre supplémentair 105 est adjacente à la chambre de descente 5, dont elle est séparée par un piston séparateur 104, rappelé par des moyens élastiques 106 contre une première butée 1 3, et susceptible d'être déplacé contre les moyens élastiques 106 sous l'effet des dilatations du fluide hydraulique, pour constituer une chambre d'accumulation de ces dilatations. La chambre 105 peut être agencée en amortisseur supplémentaire dont les effets s'ajoutent à ceux de l'amortisseur 2, 3, 15 et 17. Application au relevage de trains d'atterrissage.
FR7633261A 1976-02-04 1976-11-04 Perfectionnements aux amortisseurs-verins Granted FR2370196A2 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR7633261A FR2370196A2 (fr) 1976-02-04 1976-11-04 Perfectionnements aux amortisseurs-verins
IT19663/77A IT1079171B (it) 1976-02-04 1977-01-26 Perfezionamenti agli ammortizzatori-martinetti
GB3597/77A GB1563273A (en) 1976-02-04 1977-01-28 Shock absorber
DE2703716A DE2703716C2 (de) 1976-02-04 1977-01-29 Stoßdämpfer
US05/765,284 US4088286A (en) 1976-02-04 1977-02-03 Shock absorber

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7603126A FR2340482A1 (fr) 1976-02-04 1976-02-04 Perfectionnements aux amortisseurs-verins
FR7633261A FR2370196A2 (fr) 1976-02-04 1976-11-04 Perfectionnements aux amortisseurs-verins

Publications (2)

Publication Number Publication Date
FR2370196A2 true FR2370196A2 (fr) 1978-06-02
FR2370196B2 FR2370196B2 (fr) 1983-01-07

Family

ID=26219284

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7633261A Granted FR2370196A2 (fr) 1976-02-04 1976-11-04 Perfectionnements aux amortisseurs-verins

Country Status (5)

Country Link
US (1) US4088286A (fr)
DE (1) DE2703716C2 (fr)
FR (1) FR2370196A2 (fr)
GB (1) GB1563273A (fr)
IT (1) IT1079171B (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0014660A1 (fr) * 1979-02-06 1980-08-20 Messier-Hispano-Bugatti (S.A) Amortisseur et amortisseur-vérin notamment pour trains d'atterrissage d'aérodyne
FR2461852A1 (fr) * 1979-07-17 1981-02-06 Messier Hispano Sa Perfectionnements aux amortisseurs et amortisseurs-verins notamment pour trains d'atterrissage d'aerodyne
EP0051506A1 (fr) * 1980-10-30 1982-05-12 Messier-Hispano-Bugatti (S.A) Amortisseur-vérin
FR2530763A1 (fr) * 1982-07-22 1984-01-27 Messier Hispano Sa Amortisseur retractable
FR2538468A1 (fr) * 1982-12-22 1984-06-29 Petroles Cie Francaise Verin-amortisseur hydraulique notamment pour equipement sous-marin
FR2608242A1 (fr) * 1986-12-12 1988-06-17 Aerospatiale Amortisseur-verin, contre-fiche le comportant, et train d'atterrissage equipe d'une telle contre-fiche
FR2638828A1 (fr) * 1988-11-04 1990-05-11 Cybernetix Dispositif amortisseur anti-recul escamotable
EP0461981A2 (fr) * 1990-06-13 1991-12-18 Messier Bugatti Dispositif ressort-amortisseur à course variable pour véhicule
US5094407A (en) * 1989-05-18 1992-03-10 Aerospatiale Societe Nationale Industrielle S.A. Device for reducing the flexibility of an oleo-pneumatic shock absorber for an undercarriage, and shock absorber and undercarriage including it
FR2687123A1 (fr) * 1992-02-11 1993-08-13 Eram Train d'atterrissage relevable d'aeronef, notamment pour helicoptere.
FR2957646A1 (fr) * 2010-03-16 2011-09-23 Ratier Figeac Soc Dispositif d'amortissement en fin de course du deplacement d'un corps

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2472699B1 (fr) * 1979-01-18 1985-10-18 Messier Hispano Sa Perfectionnements aux amortisseurs-verins
US4381857A (en) * 1980-12-08 1983-05-03 Lockheed Corporation Programmed oleo-pneumatic shock absorber
CA1213300A (fr) * 1983-03-17 1986-10-28 Larry J. Oliphant Dispositif pour contrecarrer le mouvement oscillatoire d'un vehicule
US4573592A (en) * 1983-03-17 1986-03-04 Harnischfeger Corporation Means to reduce oscillatory deflection of vehicle
US4674638A (en) * 1983-03-17 1987-06-23 Kobe Steel Ltd. Control for deflection reduction means
US4658970A (en) * 1985-11-15 1987-04-21 Kobe Steel Ltd. Deflection reduction module for boom hoist cylinder of mobile crane
IL86374A0 (en) * 1988-05-13 1988-11-30 Israel Aircraft Ind Ltd Aircraft landing gear shortening apparatus
DE3910119C2 (de) * 1989-03-29 1994-03-24 Hemscheidt Maschf Hermann Hydropneumatisches Federungssystem
US5944283A (en) * 1997-12-05 1999-08-31 Cartercopters, Llc Crashworthy landing gear shock
US7571876B2 (en) * 2004-01-20 2009-08-11 Lord Corporation Aircraft landing gear assembly shimmy damper
US7578465B2 (en) * 2004-01-20 2009-08-25 Lord Corporation Aircraft front nose landing gear and method of making an aircraft landing gear
FR2867451B1 (fr) * 2004-03-12 2007-04-20 Messier Dowty Sa Atterisseur a reservoir de gaz et procedes de maintenance d'un tel atterisseur
FR2869016B1 (fr) * 2004-04-19 2007-07-20 Messier Dowty Sa Sa Atterisseur a amortisseur trichambre
US7621481B2 (en) * 2004-09-03 2009-11-24 Lockheed-Martin Corporation Decoupled steering/planing air vehicle nose landing gear
FR2892700B1 (fr) * 2005-10-27 2009-04-24 Messier Dowty Sa Sa Amortisseur d'atterrisseur a retenue positive en position retractee et surcourse de crash
FR2917371B1 (fr) * 2007-06-15 2009-11-20 Messier Dowty Sa Amortisseur pour atterisseur d'aeronef
US9481452B2 (en) * 2010-11-22 2016-11-01 The Boeing Company Hydraulic actuator for semi levered landing gear
CN102060106A (zh) * 2010-12-21 2011-05-18 南京航空航天大学 一种行星探测器的缓冲着陆腿
US8939400B2 (en) 2011-02-21 2015-01-27 The Boeing Company Air-ground detection system for semi-levered landing gear
CN102120498A (zh) * 2011-02-24 2011-07-13 哈尔滨工业大学 一种电磁阻尼缓冲器
US8998133B2 (en) 2011-04-01 2015-04-07 The Boeing Company Landing gear system
CN102198866B (zh) * 2011-04-22 2013-10-02 南京航空航天大学 伸缩式行星探测器着陆腿展开机构
US20140291085A1 (en) * 2013-03-30 2014-10-02 Ronald Scott Bandy Segmented Air Shock
US20160122008A1 (en) * 2014-11-03 2016-05-05 Borealis Technical Limited Roller Traction Drive System for an Aircraft Drive Wheel Drive System
US10486802B2 (en) * 2016-09-19 2019-11-26 Goodrich Corporation Landing gear arrangement with passive shock strut shrink actuator
US10562614B2 (en) 2016-09-21 2020-02-18 The Boeing Company Aircraft landing gear, aircraft, and related methods
DE102017104250B3 (de) * 2017-03-01 2018-05-30 Lisa Dräxlmaier GmbH Rotationsdämpfer mit konstantem Reibungskoeffizient
CN111114842B (zh) * 2018-10-30 2022-07-22 哈尔滨工业大学 一种电磁和弹性阻尼复合吸能的折叠小行星表面着陆装置
FR3102522B1 (fr) * 2019-10-29 2021-11-12 Safran Landing Systems Porte-diaphragme pour amortisseur de type oléopneumatique
CN112196932B (zh) * 2020-09-25 2022-04-22 中国直升机设计研究所 一种缓冲器用节流阀
US11211896B1 (en) 2021-01-14 2021-12-28 FTC Solar, Inc. Systems for damping a solar photovoltaic array tracker
US11695370B2 (en) 2021-07-27 2023-07-04 FTC Solar, Inc. Locking assembly for a solar photovoltaic array tracker
GB2614877B (en) * 2022-01-13 2024-01-31 Safran Landing Systems Uk Ltd Aircraft landing gear shock absorber strut
US20230392701A1 (en) * 2022-06-03 2023-12-07 Safran Landing Systems Canada Inc. Fuse pin valve

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR803805A (fr) * 1935-03-28 1936-10-09 Elektronmetall Gmbh Entretoise de longueur variable pour avions
US2294918A (en) * 1938-07-26 1942-09-08 Siam Retractable undercarriage for airplanes and the like
US2554581A (en) * 1941-07-31 1951-05-29 Siam Shock absorber with retractable stroke for airplanes
BE468925A (fr) * 1944-05-03
US2698751A (en) * 1950-04-03 1955-01-04 Cleveland Pneumatic Tool Co Device for maintaining constant static position for landing gears
US2892626A (en) * 1955-08-17 1959-06-30 Cleveland Pneumatic Ind Inc Landing gear construction
FR1161122A (fr) * 1955-10-18 1958-08-21 Cleveland Pneumatic Tool Co Train d'atterrissage
US2942809A (en) * 1955-11-10 1960-06-28 British Messier Ltd Aircraft undercarriage leg
US3140084A (en) * 1960-12-27 1964-07-07 Lockheed Aircraft Corp Shock strut
GB1013821A (en) * 1961-07-05 1965-12-22 Dowty Rotol Ltd Improvements relating to aircraft landing gear
US3156257A (en) * 1961-11-20 1964-11-10 Hough Co Frank Flow control valve
GB1081018A (en) * 1964-11-27 1967-08-31 Electro Hydraulics Ltd Hydro-pneumatic shock absorbers
US3292919A (en) * 1964-12-21 1966-12-20 Bendix Corp Aircraft shock absorber
US3290038A (en) * 1965-01-14 1966-12-06 Bendix Corp Extensible shock absorber
US3426651A (en) * 1966-07-26 1969-02-11 Pneumo Dynamics Corp Air-oil suspension

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0014660A1 (fr) * 1979-02-06 1980-08-20 Messier-Hispano-Bugatti (S.A) Amortisseur et amortisseur-vérin notamment pour trains d'atterrissage d'aérodyne
FR2461852A1 (fr) * 1979-07-17 1981-02-06 Messier Hispano Sa Perfectionnements aux amortisseurs et amortisseurs-verins notamment pour trains d'atterrissage d'aerodyne
EP0051506A1 (fr) * 1980-10-30 1982-05-12 Messier-Hispano-Bugatti (S.A) Amortisseur-vérin
FR2530763A1 (fr) * 1982-07-22 1984-01-27 Messier Hispano Sa Amortisseur retractable
FR2538468A1 (fr) * 1982-12-22 1984-06-29 Petroles Cie Francaise Verin-amortisseur hydraulique notamment pour equipement sous-marin
EP0275735A1 (fr) * 1986-12-12 1988-07-27 AEROSPATIALE Société Nationale Industrielle Amortisseur-vérin, contre-fiche le comportant, et train d'atterrissage équipé d'une telle contre-fiche
FR2608242A1 (fr) * 1986-12-12 1988-06-17 Aerospatiale Amortisseur-verin, contre-fiche le comportant, et train d'atterrissage equipe d'une telle contre-fiche
US4821983A (en) * 1986-12-12 1989-04-18 Aerospatiale Societe Nationale Industrielle Shock absorbing jack, a stay comprising it and landing gear equipped with such a stay
FR2638828A1 (fr) * 1988-11-04 1990-05-11 Cybernetix Dispositif amortisseur anti-recul escamotable
US5094407A (en) * 1989-05-18 1992-03-10 Aerospatiale Societe Nationale Industrielle S.A. Device for reducing the flexibility of an oleo-pneumatic shock absorber for an undercarriage, and shock absorber and undercarriage including it
EP0461981A2 (fr) * 1990-06-13 1991-12-18 Messier Bugatti Dispositif ressort-amortisseur à course variable pour véhicule
EP0461981A3 (en) * 1990-06-13 1993-08-04 Messier Bugatti Spring-damper unit with variable stroke for a vehicle
FR2687123A1 (fr) * 1992-02-11 1993-08-13 Eram Train d'atterrissage relevable d'aeronef, notamment pour helicoptere.
FR2957646A1 (fr) * 2010-03-16 2011-09-23 Ratier Figeac Soc Dispositif d'amortissement en fin de course du deplacement d'un corps
US8776963B2 (en) 2010-03-16 2014-07-15 Ratier Figeac Device for damping the movement of a body at the end of travel

Also Published As

Publication number Publication date
FR2370196B2 (fr) 1983-01-07
DE2703716C2 (de) 1982-08-26
US4088286A (en) 1978-05-09
DE2703716A1 (de) 1977-08-11
IT1079171B (it) 1985-05-08
GB1563273A (en) 1980-03-26

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