TERMIUM Plus®

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HYDRAULIC ACTUATING CYLINDER [11 records]

Record 1 2016-06-16

English

Subject field(s)
  • Closing Devices and Nozzles (Mechanical Components)
  • Aircraft Systems
DEF

A valve used in liquid-powered systems to allow normal speed of operation in one direction and limited speed in another.

CONT

An orifice check valve may be included in a hydraulic landing gear actuator system. When the gear is raised, the check valve allows full fluid flow to lift the heavy gear at maximum speed. When lowering the gear, the orifice in the check valve prevents the gear from violently dropping by restricting fluid flow out of the actuating cylinder.

French

Domaine(s)
  • Obturateurs et buses (Composants mécaniques)
  • Circuits des aéronefs
OBS

clapet antiretour à orifice : terme uniformisé par le Comité d'uniformisation de la terminologie aéronautique (CUTA) - Maintenance.

Spanish

Save record 1

Record 2 2011-10-05

English

Subject field(s)
  • Transformation of Momentum (Mechanical Components)
OBS

the [actuating] shaft, through gearing, rotates two poppet assemblies to shut off the pressure in each hydraulic system, at the same time interconnecting both sides of each piston section of the actuating cylinder when the booster assembly is shifted to boost off operation to prevent hydraulic lock of each piston section.

French

Domaine(s)
  • Transformations de mouvements (Composants mécaniques)
OBS

par inférence. Les vérins ont des sections identiques de chaque côté du piston. Chaque chambre est mise en communication, soit avec la pression hydraulique d'alimentation, soit avec la bâche par l'intermédiaire d'un distributeur à tiroir. Le code de source complet est INCAR-SE-210,1971,2,27-30-0,27.

Spanish

Save record 2

Record 3 2010-02-11

English

Subject field(s)
  • Electrical Systems
  • Aeronautical Engineering and Maintenance
OBS

each component senses the hydraulic load on the booster actuating cylinder and transmits an equivalent electrical signal to the autopilot system.

French

Domaine(s)
  • Ensembles électrotechniques
  • Aérotechnique et maintenance

Spanish

Save record 3

Record 4 2008-05-13

English

Subject field(s)
  • Aircraft Systems
  • Landing Gear (Aeroindustry)
OBS

Retractable landing gear may be retracted manually, electrically, or hydraulically. The main struts of retractable landing gear are mounted on trunnions and bearings so that they can easily be swung upward into the fuselage or wing. The retracting mechanism may be a jackscrew arrangement, an electric-motor-operated screw or gear system, or a hydraulic actuating cylinder connected to suitable linking devices.

OBS

Landing gear may be classified as either fixed or retractable, and it may also be classified according to arrangement on the aircraft. In this case we may say that the two principal arrangements are conventional and tricycle.

French

Domaine(s)
  • Circuits des aéronefs
  • Atterrisseur (Constructions aéronautiques)
OBS

rentrée du train : terme uniformisé par le Comité d'uniformisation de la terminologie aéronautique (CUTA) - Maintenance.

OBS

rentrée train : terme uniformisé par le Comité d'uniformisation de la terminologie aéronautique (CUTA) - Opérations aériennes.

Spanish

Save record 4

Record 5 1999-10-12

English

Subject field(s)
  • Control Instrumentation (Mechanical Components)
  • Aircraft Systems
DEF

A cylinder or fluid motor that converts hydraulic power into useful mechanical work; mechanical motion produced may be linear, rotary, or oscillatory.

CONT

Hydraulic actuators.... The most commonly utilized actuator is the actuating cylinder; however, servo actuators and hydraulic motors are also employed for special applications where modified motion is required.

French

Domaine(s)
  • Dispositifs de commande (Composants mécaniques)
  • Circuits des aéronefs
CONT

Les appareils de robinetterie peuvent être commandés soit manuellement, soit à l'aide d'actionneurs à énergie auxiliaire (pneumatique, électrique ou hydraulique).

CONT

actionneurs (...) hydrauliques. Ces actionneurs utilisent le plus souvent le principe du vérin.

OBS

Actionneur hydraulique : terme accepté par le Comité d'étude de la terminologie des cartes de travail du DC-9.

Spanish

Save record 5

Record 6 1999-06-07

English

Subject field(s)
  • Control Instrumentation (Mechanical Components)
  • Aircraft Systems

French

Domaine(s)
  • Dispositifs de commande (Composants mécaniques)
  • Circuits des aéronefs
OBS

vérin hydraulique de commande : terme uniformisé par le CUTA opérations aériennes et accepté par le Comité d'étude de la terminologie des cartes de travail du DC-9.

Spanish

Save record 6

Record 7 1993-01-31

English

Subject field(s)
  • Control Instrumentation (Mechanical Components)
  • Flight Controls (Aeroindustry)
CONT

Hydraulic actuators are devices for converting hydraulic pressure to mechanical motion(work) or power. The most commonly utilized actuator is the actuating cylinder, however, servo actuators... are also employed for special applications where modified motion is required.... [and, ] in situations where accurately controlled intermediate positions of units are required.... The servo actuator is used to move large control surfaces... [and] is designed to provide hydraulic power to aid the pilot in the movement of various aircraft controls.

OBS

servo-actuator: term standardized by ISO.

French

Domaine(s)
  • Dispositifs de commande (Composants mécaniques)
  • Commandes de vol (Constructions aéronautiques)
CONT

Utilisant des informations d'angle d'incidence, des données de vol pneumatiques et des programmes de calcul stockés en mémoire sous forme digitale, cet ordinateur numérique détermine de manière continue la section d'entrée optimale et assure les réglages nécessaires par l'intermédiaire d'un servomoteur.

OBS

Le terme "servomoteur" a été uniformisé par le CUTA opérations aériennes.

OBS

Les termes "servo-actionneur" et "servomoteur" ont été acceptés par le Comité d'étude de la terminologie des cartes de travail du DC-9.

OBS

servocommande : terme normalisé par l'ISO.

Key term(s)
  • servo-moteur

Spanish

Save record 7

Record 8 1987-04-16

English

Subject field(s)
  • Lubrication Technology
  • Aeronautical Engineering and Maintenance
DEF

... torque required to turn nut on eyebolt with eyebolt threads completely through nut, but nut not contacting structure.

CONT

Install nut to connect elevator hydraulic actuating cylinder to elevator. Using a properly calibrated torque wrench, check the initial running torque of the nut. The initial running torque must be a minimum of 18 inch-pounds. If the initial running torque does not meet the 18 inch-pound minimum requirement, the nut must be replaced with a new nut which does meet the minimum requirement. Tighten nut to a final torque of 400 [more or less] 50 inch-pounds.

French

Domaine(s)
  • Tribologie
  • Aérotechnique et maintenance
CONT

Les écrous freinés ou auto-bloquants se définissent comme essentiellement rigides, et développent un couple de frottement élevé au vissage.

OBS

couple normal; couple de frottement : termes acceptés par le Comité d'étude de la terminologie des cartes de travail du DC-9.

Spanish

Save record 8

Record 9 1987-02-02

English

Subject field(s)
  • Flight Controls (Aeroindustry)
CONT

The rudder throw-limiter positions a progressive, hook-like stop in a slot in the rudder hydraulic power package actuating cylinder piston rod to restrict rudder travel at high airspeeds.

CONT

Rudder travel is limited at normal cruising speeds by the rudder throw-limiter actuator. Maximum rudder travel is 22 degrees left or right of neutral position, and a light on the annunciator panel is on when the rudder travel is unrestricted.

French

Domaine(s)
  • Commandes de vol (Constructions aéronautiques)
OBS

limiteur de débattement de la direction : terme uniformisé par le CUTA opérations aériennes et accepté par le Comité d'étude de la terminologie des cartes de travail du DC-9.

Spanish

Save record 9

Record 10 1980-09-17

English

Subject field(s)
  • Aeroindustry
OBS

the hydraulic assembly is made up of an actuator assembly which consists of a hydraulic manifold on which is mounted a surface position transmitter, actuating cylinder(...)

French

Domaine(s)
  • Constructions aéronautiques

Spanish

Save record 10

Record 11 1980-07-05

English

Subject field(s)
  • Mechanics
OBS

each hydraulic booster includes a dual tandem hydraulic actuating cylinder(...)

French

Domaine(s)
  • Mécanique

Spanish

Save record 11

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