GB2040391B - Valving in aircraft undercarriage shock absorbers - Google Patents

Valving in aircraft undercarriage shock absorbers

Info

Publication number
GB2040391B
GB2040391B GB8000968A GB8000968A GB2040391B GB 2040391 B GB2040391 B GB 2040391B GB 8000968 A GB8000968 A GB 8000968A GB 8000968 A GB8000968 A GB 8000968A GB 2040391 B GB2040391 B GB 2040391B
Authority
GB
United Kingdom
Prior art keywords
valving
shock absorbers
aircraft undercarriage
undercarriage shock
aircraft
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.)
Expired
Application number
GB8000968A
Other versions
GB2040391A (en
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
Safran Landing Systems SAS
Original Assignee
Messier Bugatti SA
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
Application filed by Messier Bugatti SA, Messier Hispano SA filed Critical Messier Bugatti SA
Publication of GB2040391A publication Critical patent/GB2040391A/en
Application granted granted Critical
Publication of GB2040391B publication Critical patent/GB2040391B/en
Expired 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
    • F16F9/32—Details
    • F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
    • F16F9/512—Means responsive to load action, i.e. static load on the damper or dynamic fluid pressure changes in the damper, e.g. due to changes in velocity

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Damping Devices (AREA)
GB8000968A 1979-01-18 1980-01-11 Valving in aircraft undercarriage shock absorbers Expired GB2040391B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7901292A FR2472699B1 (en) 1979-01-18 1979-01-18 IMPROVEMENTS ON CYLINDER SHOCK ABSORBERS

Publications (2)

Publication Number Publication Date
GB2040391A GB2040391A (en) 1980-08-28
GB2040391B true GB2040391B (en) 1983-07-20

Family

ID=9220936

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8000968A Expired GB2040391B (en) 1979-01-18 1980-01-11 Valving in aircraft undercarriage shock absorbers

Country Status (4)

Country Link
DE (1) DE3001169A1 (en)
FR (1) FR2472699B1 (en)
GB (1) GB2040391B (en)
IT (1) IT1129524B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4597548A (en) * 1983-06-17 1986-07-01 Hr Textron Inc. Shock absorbing struts for aircraft landing gear
CN101949398A (en) * 2010-09-13 2011-01-19 三一重工股份有限公司 Single-action hydraulic oil cylinder and paver with same
US12060148B2 (en) 2022-08-16 2024-08-13 Honeywell International Inc. Ground resonance detection and warning system and method

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR977624A (en) * 1942-09-01 1951-04-03 Cie Gen Equip Aeronautique Aircraft landing gear shock absorber
FR982548A (en) * 1943-07-13 1951-06-12 Olaer Patent Co Aircraft landing gear leg
US2767978A (en) * 1954-05-14 1956-10-23 Boeing Co Oleo snubbers
FR1242903A (en) * 1959-08-04 1960-10-07 Rech Etudes Production Sarl Fluid rolling system for shock absorbers
US3458016A (en) * 1967-11-27 1969-07-29 Menasco Mfg Co Selective damping device
US3696894A (en) * 1971-07-02 1972-10-10 Us Navy Acceleration sensitive shock absorber valve
US3750856A (en) * 1971-12-09 1973-08-07 G Kenworthy Adjustable, pressure compensating shock absorber/buffer
FR2338421A1 (en) * 1976-01-15 1977-08-12 Messier Hispano Sa OLEOPNEUMATIC SHOCK ABSORBERS
FR2370196A2 (en) * 1976-02-04 1978-06-02 Messier Hispano Sa IMPROVEMENTS TO SHOCK ABSORBERS-CYLINDERS
US4126212A (en) * 1976-09-03 1978-11-21 The Boeing Co. Crash load attenuating valve for an aircraft landing gear shock strut

Also Published As

Publication number Publication date
FR2472699A1 (en) 1981-07-03
GB2040391A (en) 1980-08-28
IT1129524B (en) 1986-06-04
IT8019236A0 (en) 1980-01-16
FR2472699B1 (en) 1985-10-18
DE3001169A1 (en) 1980-10-30

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19960111