FR2433659A1 - SERVOMECHANICAL AND IRREVERSIBLE HYDRAULIC DRIVE SYSTEM - Google Patents

SERVOMECHANICAL AND IRREVERSIBLE HYDRAULIC DRIVE SYSTEM

Info

Publication number
FR2433659A1
FR2433659A1 FR7919371A FR7919371A FR2433659A1 FR 2433659 A1 FR2433659 A1 FR 2433659A1 FR 7919371 A FR7919371 A FR 7919371A FR 7919371 A FR7919371 A FR 7919371A FR 2433659 A1 FR2433659 A1 FR 2433659A1
Authority
FR
France
Prior art keywords
signal path
drive system
control
control signal
irreversible
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
FR7919371A
Other languages
French (fr)
Other versions
FR2433659B1 (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.)
Airbus Defence and Space GmbH
Original Assignee
Messerschmitt Bolkow Blohm AG
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 Messerschmitt Bolkow Blohm AG filed Critical Messerschmitt Bolkow Blohm AG
Publication of FR2433659A1 publication Critical patent/FR2433659A1/en
Application granted granted Critical
Publication of FR2433659B1 publication Critical patent/FR2433659B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C13/00—Control systems or transmitting systems for actuating flying-control surfaces, lift-increasing flaps, air brakes, or spoilers
    • B64C13/24—Transmitting means
    • B64C13/38—Transmitting means with power amplification
    • B64C13/40—Transmitting means with power amplification using fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/54—Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement
    • B64C27/58—Transmitting means, e.g. interrelated with initiating means or means acting on blades
    • B64C27/64—Transmitting means, e.g. interrelated with initiating means or means acting on blades using fluid pressure, e.g. having fluid power amplification

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Mechanical Control Devices (AREA)
  • Toys (AREA)

Abstract

Système d'entraînement hydraulique et irréversible à servomécanisme, en particulier pour la commande du pas des pales du rotor principal d'un hélicoptère. L'organe de commande 4 est relié à l'organe d'entrée 16 par l'intermédiaire d'un autre trajet de signaux de commande mécanique (tringle de commande 58) agissant parallèlement au trajet de signaux de commande électrohydraulique 60, et dans le régulateur 62 l'écart de réglage est modifié en fonction de paramètres d'entrée variables presélectionnés, et par une commande correspondante de la servo-valve auxiliaire 64, on produit au niveau de l'organe de commande 4, une force de commande sensible, simulée de façon variable et agissant par l'intermédiaire du servomoteur auxiliaire 66, et du trajet de signaux de commande mécanique 58.Hydraulic and irreversible servomechanism drive system, in particular for controlling the pitch of the blades of the main rotor of a helicopter. The controller 4 is connected to the input member 16 through another mechanical control signal path (control rod 58) acting parallel to the electro-hydraulic control signal path 60, and in the regulator 62 the adjustment deviation is modified according to preselected variable input parameters, and by a corresponding control of the auxiliary servo-valve 64, a sensitive control force is produced at the level of the control member 4, variably simulated and acting through auxiliary servo motor 66, and mechanical control signal path 58.

FR7919371A 1978-07-27 1979-07-26 SERVOMECHANICAL AND IRREVERSIBLE HYDRAULIC DRIVE SYSTEM Granted FR2433659A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2832898A DE2832898C2 (en) 1978-07-27 1978-07-27 Irreversible hydraulic actuator

Publications (2)

Publication Number Publication Date
FR2433659A1 true FR2433659A1 (en) 1980-03-14
FR2433659B1 FR2433659B1 (en) 1984-09-14

Family

ID=6045480

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7919371A Granted FR2433659A1 (en) 1978-07-27 1979-07-26 SERVOMECHANICAL AND IRREVERSIBLE HYDRAULIC DRIVE SYSTEM

Country Status (3)

Country Link
DE (1) DE2832898C2 (en)
FR (1) FR2433659A1 (en)
GB (1) GB2026406B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2771071A1 (en) * 1997-11-14 1999-05-21 Eurocopter France Control linkage for helicopter flight controls
US10738803B2 (en) 2017-12-07 2020-08-11 Airbus Helicopters Servo control, rotor and aircraft

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3206162A1 (en) * 1982-02-20 1983-09-01 Hartmann & Lämmle GmbH & Co KG, 7255 Rutesheim DRIVE FOR A MOVABLE DIMENSION BY MEANS OF A HYDROMOTOR
DE3638821A1 (en) * 1986-09-12 1988-03-24 Messerschmitt Boelkow Blohm ELEVATOR CONTROL SYSTEM
US4899641A (en) * 1988-05-16 1990-02-13 Kaman Aerospace Corporation Electro-hydraulic helicopter system having individual blade control
DE19537417C2 (en) * 1995-10-07 1997-07-24 Eurocopter Deutschland Hydraulic actuator
FR3020038A1 (en) * 2014-04-18 2015-10-23 Airbus Helicopters HYDRAULIC AIRCRAFT SYSTEM COMPRISING AT LEAST ONE SERVO, ROTOR AND AIRCRAFT
RU2610851C1 (en) * 2015-12-30 2017-02-16 Акционерное общество "Научно-исследовательский институт "Субмикрон" System for adaptive control of controlled electrohydraulic servo drive
EP4155196B1 (en) * 2021-09-27 2024-04-24 Microtecnica S.r.l. Stability control augmentation system and method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB780759A (en) * 1954-12-03 1957-08-07 Hobson Ltd H M Improvements in or relating to aircraft control systems
US2939653A (en) * 1956-10-31 1960-06-07 Westinghouse Electric Corp Flight control system
US2945477A (en) * 1955-07-29 1960-07-19 Sperry Gyroscope Co Ltd Control systems for aircraft
GB859504A (en) * 1956-05-09 1961-01-25 Fairey Co Ltd Improvements relating to a mechanism for deflecting a control surface of an aircraft
FR2061616A1 (en) * 1969-09-09 1971-06-25 United Aircraft Corp
FR2320230A1 (en) * 1975-08-04 1977-03-04 United Technologies Corp SYSTEM TO INCREASE SENSATION ON THE AERODYNAMIC SURFACE CONTROL LEVER

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3487750A (en) * 1967-12-01 1970-01-06 Bell Aerospace Corp Positioning system having input signal integrator and load pressure feedback
DE1800866C3 (en) * 1968-10-03 1975-09-04 Messerschmitt-Boelkow-Blohm Gmbh, 8000 Muenchen Hydraulic actuator, in particular for controlling aircraft and space vehicles
GB1337423A (en) * 1970-05-22 1973-11-14 British Aircraft Corp Ltd Actuators particularly for aircraft power control systems
DE2151122C2 (en) * 1971-10-14 1983-04-21 Canadian General Electric Co. Ltd., Toronto, Ontario Bilateral hydromechanical servo-system - has mechanical intermediate couplings for power feedback to setting unit and control valve

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB780759A (en) * 1954-12-03 1957-08-07 Hobson Ltd H M Improvements in or relating to aircraft control systems
US2945477A (en) * 1955-07-29 1960-07-19 Sperry Gyroscope Co Ltd Control systems for aircraft
GB859504A (en) * 1956-05-09 1961-01-25 Fairey Co Ltd Improvements relating to a mechanism for deflecting a control surface of an aircraft
US2939653A (en) * 1956-10-31 1960-06-07 Westinghouse Electric Corp Flight control system
FR2061616A1 (en) * 1969-09-09 1971-06-25 United Aircraft Corp
FR2320230A1 (en) * 1975-08-04 1977-03-04 United Technologies Corp SYSTEM TO INCREASE SENSATION ON THE AERODYNAMIC SURFACE CONTROL LEVER

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2771071A1 (en) * 1997-11-14 1999-05-21 Eurocopter France Control linkage for helicopter flight controls
US10738803B2 (en) 2017-12-07 2020-08-11 Airbus Helicopters Servo control, rotor and aircraft

Also Published As

Publication number Publication date
GB2026406A (en) 1980-02-06
FR2433659B1 (en) 1984-09-14
DE2832898C2 (en) 1985-12-19
GB2026406B (en) 1982-06-30
DE2832898A1 (en) 1980-02-14

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse