GB1054896A - - Google Patents

Info

Publication number
GB1054896A
GB1054896A GB6417002A GB6417002A GB1054896A GB 1054896 A GB1054896 A GB 1054896A GB 6417002 A GB6417002 A GB 6417002A GB 6417002 A GB6417002 A GB 6417002A GB 1054896 A GB1054896 A GB 1054896A
Authority
GB
United Kingdom
Prior art keywords
web
connector
ports
members
sleeve
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
GB6417002A
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 filed Critical
Priority to GB6417002A priority Critical patent/GB1054896A/en
Publication of GB1054896A publication Critical patent/GB1054896A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
    • F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
    • F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
    • F16F13/08—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/51—Damping of blade movements
    • 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
    • F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
    • F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
    • F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
    • F16F13/24—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the central part of the unit being supported by one element and both extremities of the unit being supported by a single other element, i.e. double acting mounting
    • 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
    • F16F2230/00—Purpose; Design features
    • F16F2230/10—Enclosure elements, e.g. for protection
    • F16F2230/105—Flexible, e.g. bellows or bladder

Landscapes

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

Abstract

1,054,896. Hydraulic dampers. WESTLAND AIRCRAFT Ltd. April 7, 1965 [April 24, 1964], No. 17002/64. Heading F2S. A hydraulic damper, for rotor blade assemblies of aircraft, comprises a rigid cylindrical body 2 with an inner centrally-disposed web 3 having an inner bush 4 and which is closed at its ends by flexible wall elements 21, 22, the inner edges of the elements being secured to bell-shaped members 11, 14 carried by a first connector 10, which extends through a sleeve 6 slidable within the bore 5 of the bush 4, and the outer edges being clamped by bell-shaped outer wall extension members 16, 18, in grooves in the body 2, the outer wall member 18 being extended downwardly for connection to a second connector 20. A nut 13 clamps the inner edges of the members 11, 14 and the sleeve 6 against a shoulder 12 on the connector 10, a sealing ring 7 being accommodated in a groove 8 in the bore 5. Ports 26 are associated in diametric pairs 26, 26 mutually at right angles in the web 3 with flexible valve members 27, 28 disposed on opposite sides of the web 3 and retained by means of a rivet 29. Two further ports 30, 30 in the web are controlled by a needle valve and filler connection 33. In a modification, Fig. 4, not shown, the web 51 has ports 70, 70 controlled by a needle valve and filler connection 73 and two ports such as 68 each controlled by a one-way valve such as 69, the outer edges of the flexible wall elements 56, 57 being clamped in grooves in perimeter walls of the web 51 by means of a collar 62, a sleeve 63, and a locking ring 64. The flexible wall elements 56, 57 are connected to an outer cylindrical part 76, 77 which is carried by a connector member 75, the other connector member being connected to a pair of trunnions on the web, 51, the trunnions, not shown, projecting through slots in the outer cylinder 76, 77.
GB6417002A 1964-04-24 1964-04-24 Expired GB1054896A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB6417002A GB1054896A (en) 1964-04-24 1964-04-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6417002A GB1054896A (en) 1964-04-24 1964-04-24

Publications (1)

Publication Number Publication Date
GB1054896A true GB1054896A (en) 1967-01-11

Family

ID=86331320

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6417002A Expired GB1054896A (en) 1964-04-24 1964-04-24

Country Status (1)

Country Link
GB (1) GB1054896A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2144825A (en) * 1983-06-29 1985-03-13 Continental Gummi Werke Ag Hydraulically damped elastomeric mountings
GB2153482A (en) * 1984-01-25 1985-08-21 Dunlop Ltd Hydraulic campers
GB2223080A (en) * 1988-06-13 1990-03-28 Ind Vibration Technology Pneumatic anti-vibration mounting
US4974794A (en) * 1988-03-30 1990-12-04 Aerospatiale Societe Nationale Industrielle Elastic strut having an integrated hydromechanical resonator in particular for the suspension of a transmission box on a rotor aircraft and a suspension device using such a strut
FR3090777A1 (en) * 2018-12-19 2020-06-26 Airbus Helicopters HYDROELASTIC SHOCK ABSORBER, ROTOR COMPRISING SUCH A HYDROELASTIC SHOCK ABSORBER AND ASSOCIATED AIRCRAFT

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2144825A (en) * 1983-06-29 1985-03-13 Continental Gummi Werke Ag Hydraulically damped elastomeric mountings
GB2153482A (en) * 1984-01-25 1985-08-21 Dunlop Ltd Hydraulic campers
US4974794A (en) * 1988-03-30 1990-12-04 Aerospatiale Societe Nationale Industrielle Elastic strut having an integrated hydromechanical resonator in particular for the suspension of a transmission box on a rotor aircraft and a suspension device using such a strut
GB2223080A (en) * 1988-06-13 1990-03-28 Ind Vibration Technology Pneumatic anti-vibration mounting
GB2223080B (en) * 1988-06-13 1992-07-08 Ind Vibration Technology Pneumatic anti-vibration mounting
FR3090777A1 (en) * 2018-12-19 2020-06-26 Airbus Helicopters HYDROELASTIC SHOCK ABSORBER, ROTOR COMPRISING SUCH A HYDROELASTIC SHOCK ABSORBER AND ASSOCIATED AIRCRAFT
EP3680510A1 (en) 2018-12-19 2020-07-15 Airbus Helicopters Hydroelastic damper, rotor comprising such a hydroelastic damper and associated aircraft

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