FR2313603A1 - Amortisseur hydraulique ayant des moyens d'etancheite redondants - Google Patents

Amortisseur hydraulique ayant des moyens d'etancheite redondants

Info

Publication number
FR2313603A1
FR2313603A1 FR7616940A FR7616940A FR2313603A1 FR 2313603 A1 FR2313603 A1 FR 2313603A1 FR 7616940 A FR7616940 A FR 7616940A FR 7616940 A FR7616940 A FR 7616940A FR 2313603 A1 FR2313603 A1 FR 2313603A1
Authority
FR
France
Prior art keywords
shock absorber
sealing means
hydraulic shock
redundant sealing
redundant
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.)
Withdrawn
Application number
FR7616940A
Other languages
English (en)
Inventor
Robert Charles Rybicki
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.)
Raytheon Technologies Corp
Original Assignee
United Technologies Corp
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 United Technologies Corp filed Critical United Technologies Corp
Publication of FR2313603A1 publication Critical patent/FR2313603A1/fr
Withdrawn legal-status Critical Current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
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
    • F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
    • F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
    • F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
    • F16F9/20—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with the piston-rod extending through both ends of the cylinder, e.g. constant-volume dampers
    • 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
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/3271—Assembly or repair
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/002—Sealings comprising at least two sealings in succession
    • F16J15/004—Sealings comprising at least two sealings in succession forming of recuperation chamber for the leaking fluid

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Fluid-Damping Devices (AREA)
FR7616940A 1975-06-05 1976-06-04 Amortisseur hydraulique ayant des moyens d'etancheite redondants Withdrawn FR2313603A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/584,238 US4084668A (en) 1975-06-05 1975-06-05 Redundant damper seals

Publications (1)

Publication Number Publication Date
FR2313603A1 true FR2313603A1 (fr) 1976-12-31

Family

ID=24336505

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7616940A Withdrawn FR2313603A1 (fr) 1975-06-05 1976-06-04 Amortisseur hydraulique ayant des moyens d'etancheite redondants

Country Status (8)

Country Link
US (1) US4084668A (fr)
BR (1) BR7603630A (fr)
CA (1) CA1045947A (fr)
DE (1) DE2625240A1 (fr)
FR (1) FR2313603A1 (fr)
GB (1) GB1550170A (fr)
IL (1) IL49744A (fr)
IT (1) IT1081094B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993019301A1 (fr) * 1992-03-20 1993-09-30 Mannesmann Rexroth Gmbh Dispositif hydraulique d'entrainement a verin
EP2933186A1 (fr) 2014-04-18 2015-10-21 Airbus Helicopters Système hydraulique d'aéronef comprenant au moins une servocommande, rotor et aéronef associés
WO2016148584A1 (fr) 2015-03-15 2016-09-22 Holmes Solutions Limited Partnership Appareil de transfert d'énergie et son procédé d'utilisation
US10948044B2 (en) 2015-03-15 2021-03-16 Holmes Solutions Limited Partnership Fluid circuit device

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NL185595C (nl) * 1977-05-09 1990-06-01 Lely Nv C Van Der Koppelelement in de hefinrichting-bevestiging van een werktuig aan een trekker of dergelijk voertuig.
JPS58185397A (ja) * 1982-04-26 1983-10-29 Sanshin Ind Co Ltd 船舶推進機のチルトロツク装置
US4695226A (en) * 1983-11-07 1987-09-22 United Technologies Corporation Helicopter rotor backup damper system
SE438990B (sv) * 1984-06-21 1985-05-28 Saab Scania Ab Arrangemang for dempning av vexlingsrorelser vid en mekanisk synkroniserad flerstegsvexellada
DE3524862A1 (de) * 1985-04-12 1986-10-30 Robert Bosch Gmbh, 7000 Stuttgart Vorrichtung zur daempfung von bewegungsablaeufen
US4730706A (en) * 1986-07-09 1988-03-15 Tayco Developments, Inc. Snubber with integral test structure
US4921080A (en) * 1989-05-08 1990-05-01 Lin Chien H Hydraulic shock absorber
US5347771A (en) * 1991-06-20 1994-09-20 Kajima Corporation High damping device for seismic response controlled structure
US6022600A (en) * 1992-04-24 2000-02-08 Lord Corporation High-temperature fluid mounting
US5382058A (en) * 1993-06-17 1995-01-17 Vlsi Technology, Inc. Rotatable flange union for use with vacuum systems
US5501434A (en) * 1994-05-10 1996-03-26 Lord Corporation Hybrid fluid and elastomer damper
US5687452A (en) * 1995-05-02 1997-11-18 The Boeing Company Hydraulic snubber for aircraft
GB2300840B (en) * 1995-05-18 1999-05-26 Louis Karmios Improvements in or relating to vehicle suspension systems
US6135138A (en) * 2000-02-01 2000-10-24 Raytheon Company Rotary coupler for fluid conduits
GB0004649D0 (en) * 2000-02-29 2000-04-19 Gkn Westland Helicopters Ltd Vibration damping apparatus
US6464048B1 (en) * 2000-07-24 2002-10-15 Tenneco Automotive Inc. Solenoid actuated continuously variable shock absorber
FR2826933B1 (fr) * 2001-07-04 2003-09-26 Eurocopter France Amortisseur de trainee a inertie fluide pour rotor de giravion
FR2835506B1 (fr) 2002-02-06 2004-03-12 Eurocopter France Amortisseur de trainee a double piston pour rotor de giravion
US20040074720A1 (en) * 2002-05-07 2004-04-22 Thieltges Gary Peter Motion stabilized mounts
EP1653118B1 (fr) * 2003-02-05 2007-12-05 Kajima Corporation Amortisseur hydraulique de type a commutation a coefficient d'attenuation
JP3873192B2 (ja) * 2003-03-27 2007-01-24 カヤバ工業株式会社 ダンパ内蔵型フロントフォーク
US7438164B2 (en) * 2003-12-08 2008-10-21 Tenneco Automotive Operating Company Inc. Solenoid actuated continuously variable servo valve for adjusting damping in shock absorbers and struts
GB2420395A (en) * 2004-11-18 2006-05-24 Westland Helicopters Vibration damping apparatus for a helicopter rotor system
US20060261530A1 (en) * 2005-05-18 2006-11-23 Bell Helicopter Textron Inc. Preloaded one-way valve accumulator
US7607383B2 (en) 2007-05-01 2009-10-27 Nagel Robert W System for backup rod seal for hydraulic cylinder
EP2714285A4 (fr) * 2011-05-26 2015-08-26 Failsafe Metering Internat Ltd Dispositif, système et procédé de dosage de précision prédictif et adaptable
US9004466B2 (en) * 2013-02-04 2015-04-14 Bell Helicopter Textron Inc. Pneumatically augmented elastomeric damper for improved spring rate tuning
EP3431781A1 (fr) * 2017-07-21 2019-01-23 Claverham Limited Ensemble de piston
FR3079577B1 (fr) 2018-03-30 2020-03-13 Airbus Helicopters Amortisseur hydro elastique et aeronef
DE102020110325A1 (de) 2020-04-15 2021-10-21 Liebherr-Components Kirchdorf GmbH Schwingungsdämpfer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB809897A (en) * 1957-07-26 1959-03-04 Sperry Gyroscope Co Ltd Shaft sealing arrangement
US3307574A (en) * 1964-02-07 1967-03-07 Acf Ind Inc Drain structure for venting leaked fluid from valve stem packing
FR1520440A (fr) * 1966-12-20 1968-04-12 Renault Dispositif pour maintenir à hauteur constante, à l'arrêt, un véhicule automobileéquipé d'une suspension oléopneumatique
FR1522274A (fr) * 1967-02-09 1968-04-26 Langen & Co Cylindre hydraulique, notamment pour jambe de force ou amortisseur d'oscillations de véhicules à réglage de niveau
US3869963A (en) * 1973-11-09 1975-03-11 Singer Co Hydraulic actuator having a self-aspirating actuator rod seal

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2122045A (en) * 1935-10-22 1938-06-28 Waterbury Tool Co Power transmission
US2334115A (en) * 1941-06-05 1943-11-09 Smith & Sons Ltd S Hydraulic apparatus
US2394364A (en) * 1943-04-15 1946-02-05 Niels A Christensen Pressure seal
US2604953A (en) * 1946-08-16 1952-07-29 Firestone Tire & Rubber Co Damping device for rotative wing aircraft
US2755872A (en) * 1952-03-06 1956-07-24 United Aircraft Corp Fluid damper for rotary wing aircraft
US3110367A (en) * 1962-03-16 1963-11-12 Buckeye Steel Castings Co Hydraulic cushioning device for railway vehicles
NL6403323A (fr) * 1963-03-29 1964-09-30
US3469833A (en) * 1967-03-27 1969-09-30 Leonard S Suozzo Hydraulic shock and sway arrestor
US3514114A (en) * 1967-11-09 1970-05-26 John C Monahan Multiple sealing means
DE1630738A1 (de) * 1967-11-16 1971-08-12 Langen & Co Hydrozylinder,insbesondere fuer Federbeine oder Schwingungsdaempfer von Fahrzeugen mit Niveauregulierung
US3636708A (en) * 1970-04-13 1972-01-25 Scott Equipment Co Fluid makeup system
US3925987A (en) * 1972-10-06 1975-12-16 Jacques Faisandier Hydraulic control circuit
US3810659A (en) * 1973-02-02 1974-05-14 J Marcil Suspension damping device
US3943717A (en) * 1974-01-07 1976-03-16 Caterpillar Tractor Co. Contaminant removal from a hydraulic cylinder

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB809897A (en) * 1957-07-26 1959-03-04 Sperry Gyroscope Co Ltd Shaft sealing arrangement
US3307574A (en) * 1964-02-07 1967-03-07 Acf Ind Inc Drain structure for venting leaked fluid from valve stem packing
FR1520440A (fr) * 1966-12-20 1968-04-12 Renault Dispositif pour maintenir à hauteur constante, à l'arrêt, un véhicule automobileéquipé d'une suspension oléopneumatique
FR1522274A (fr) * 1967-02-09 1968-04-26 Langen & Co Cylindre hydraulique, notamment pour jambe de force ou amortisseur d'oscillations de véhicules à réglage de niveau
US3869963A (en) * 1973-11-09 1975-03-11 Singer Co Hydraulic actuator having a self-aspirating actuator rod seal

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993019301A1 (fr) * 1992-03-20 1993-09-30 Mannesmann Rexroth Gmbh Dispositif hydraulique d'entrainement a verin
US5469704A (en) * 1992-03-20 1995-11-28 Mannesmann Rexroth Gmbh Hydraulic drive apparatus comprising a cylinder
EP2933186A1 (fr) 2014-04-18 2015-10-21 Airbus Helicopters Système hydraulique d'aéronef comprenant au moins une servocommande, rotor et aéronef associés
FR3020038A1 (fr) * 2014-04-18 2015-10-23 Airbus Helicopters Systeme hydraulique d'aeronef comprenant au moins une servocommande, rotor et aeronef associes
US9428262B2 (en) 2014-04-18 2016-08-30 Airbus Helicopters Aircraft hydraulic system comprising at least one servo-control, and an associated rotor and aircraft
WO2016148584A1 (fr) 2015-03-15 2016-09-22 Holmes Solutions Limited Partnership Appareil de transfert d'énergie et son procédé d'utilisation
EP3271606A4 (fr) * 2015-03-15 2019-01-16 Holmes Solutions Limited Partnership Appareil de transfert d'énergie et son procédé d'utilisation
US10948044B2 (en) 2015-03-15 2021-03-16 Holmes Solutions Limited Partnership Fluid circuit device
US11598387B2 (en) 2015-03-15 2023-03-07 Holmes Solutions Limited Partnership Method of controlling pressure variation in working fluids in a fluid circuit undergoing working pressure variations
US12092186B2 (en) 2015-03-15 2024-09-17 Holmes Solutions Limited Partnership Method of controlling pressure variation in working fluids in a fluid circuit undergoing working pressure variations

Also Published As

Publication number Publication date
DE2625240A1 (de) 1976-12-23
IL49744A (en) 1979-01-31
BR7603630A (pt) 1977-01-18
GB1550170A (en) 1979-08-08
CA1045947A (fr) 1979-01-09
US4084668A (en) 1978-04-18
IT1081094B (it) 1985-05-16

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Legal Events

Date Code Title Description
ST Notification of lapse