TERMIUM Plus®

From: Translation Bureau

On social media

Consult the Government of Canada’s terminology data bank.

GEAR ACTUATOR [13 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2017-10-12

English

Subject field(s)
  • Control Instrumentation (Mechanical Components)
  • Aircraft Systems
  • Landing Gear (Aeroindustry)
CONT

An actuating cylinder consists fundamentally of a cylinder housing one or more pistons, piston rods and seals.

OBS

actuator(hydraulic), power unit(hydraulic), power strut(landing gear), central cylinder(braking system).

French

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

vérin de commande; vérin de manœuvre : termes uniformisés par les Comités d'uniformisation de la terminologie aéronautique (CUTA) - Opérations aériennes et Maintenance; termes acceptés par le Comité d'étude de la terminologie des cartes de travail du DC-9.

Spanish

Save record 1

Record 2 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 2

Record 3 2010-02-26

English

Subject field(s)
  • Aeronautical Engineering and Maintenance
OBS

when the landing gear control levers are set to GEAR DOWN, pressure is ported(...) to the down ports of the MLG actuator(...)

French

Domaine(s)
  • Aérotechnique et maintenance

Spanish

Save record 3

Record 4 2010-02-11

English

Subject field(s)
  • Aeronautical Engineering and Maintenance
OBS

if the [manual drive] indexes are not aligned, the electromechanical load-limiting actuator cannot be locked and the gear train can back-drive enough to release the holding torque load, allowing the main entrance ladder assembly to rock back and forth on the fixed carriage during flight.

French

Domaine(s)
  • Aérotechnique et maintenance

Spanish

Save record 4

Record 5 2008-09-05

English

Subject field(s)
  • Flight Controls (Aeroindustry)
  • Aircraft Maneuvers
PHR

Aileron, brake, control surface, failsafe nozzle, landing gear, leading-edge slat, main landing gear door, slat, trim actuator, wing flap actuating system.

PHR

Electrical, hydraulic, pneumatic actuating system.

French

Domaine(s)
  • Commandes de vol (Constructions aéronautiques)
  • Manœuvres d'aéronefs
OBS

système d'actionnement : terme uniformisé par les Comités d'uniformisation de la terminologie aéronautique (CUTA) - Opérations aériennes et Maintenance.

PHR

Système d'actionnement des gouvernes, des volets, d'un inverseur de poussée, d'une surface de commande de vol.

PHR

Système d'actionnement électrique, hydraulique.

Spanish

Save record 5

Record 6 2008-04-22

English

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

The MLG [main landing gear] retracts inwards into the fuselage wheel well. Each MLG has two doors. The outboard door is rigidly attached at the strut. The inboard door operates by mechanical linkage to the strut and is held in up position by two uplock cylinders. This uplock is released when landing gear lever is placed in down position by hydraulic pressure, or by nitrogen pressure in emergency. The MLG is held, while airborne, in retracted position by hydraulic pressure in the actuator and by the inboard door mechanical uplock, if pressure drops. As the gear is extended, an internal lock in the actuator automatically locks it in fully extended positions.

French

Domaine(s)
  • Commandes de vol (Constructions aéronautiques)
  • Atterrisseur (Constructions aéronautiques)
CONT

La séquence d'extension/rétraction des trains est conditionnée par la position du levier de commande «rentrée/sortie» des trains et par la réponse des détecteurs de positions du train et des trappes. Elle commande successivement l'ouverture des trappes, le déverrouillage du train, l'extension du train, le verrouillage du train en position basse, puis la fermeture des trappes principales (et inversement lors de la rétraction).

OBS

levier de commande train; levier train : termes uniformisés par les Comités d'uniformisation de la terminologie aéronautique (CUTA) - Opérations aériennes et Maintenance.

Spanish

Save record 6

Record 7 2007-12-13

English

Subject field(s)
  • Landing Gear (Aeroindustry)
CONT

Landing gear axle steering for an aircraft having a six wheel three axle truck. A set of wheels driven about a vertical shaft utilizes a single actuator alone without a walking beam.

French

Domaine(s)
  • Atterrisseur (Constructions aéronautiques)
CONT

Direction d'essieux de train d'atterrissage d'avion comprend un bogie à trois essieux et six roues. Un jeu de roues entraînées autour d'un arbre vertical utilise un seul actuateur sans balancier flottant.

OBS

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

OBS

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

Spanish

Save record 7

Record 8 2007-10-31

English

Subject field(s)
  • Aircraft Systems
DEF

Any toothed gearing together with its housing which is called a "gear case."

CONT

The landing gear of the BE-10 aircraft is a fully retractable tricycle configuration, driven by a 28-volt motor located on the forward side of the main spar. The main gear actuators are driven from the motor gearbox through torque shafts. The nose-gear actuator is driven by a duplex chain from a sprocket on the motor gearbox. The input shaft to the nose-gear actuator drives a series of rotating gears inside the actuator. These gears rotate a screw into and out of a lubricated aluminum-bronze alloy nut. The movement of the screw through the lubricated nut extends and retracts the nose landing gear.

Key term(s)
  • gear-box

French

Domaine(s)
  • Circuits des aéronefs
DEF

Transmission par engrenages avec son boîtier appelé «carter».

CONT

Le BE-10 est équipé d'un train tricycle escamotable entraîné par un moteur de 28 volts situé en avant du longeron principal. Les vérins de commande du train principal sont entraînés à partir de la boîte d'engrenages du moteur par l'entremise d'arbres de torsion. Le vérin de commande du train avant est entraîné par une chaîne double à partir d'un pignon sur la boîte d'engrenages du moteur.

OBS

boîte d'engrenages : terme uniformisé par le Comité d'uniformisation de la terminologie aéronautique (CUTA) - Maintenance.

Spanish

Save record 8

Record 9 2007-10-31

English

Subject field(s)
  • Machine-Tooling (Metallurgy)
DEF

A sharp or rough projection of metal usually caused by machine processing.

CONT

Subsequent investigation revealed that the right main gear hydraulic actuator was weak in operation due to an internal leak across the piston seals, and that the right gear was prevented from fully extending due to the downlock stop bolt on the leg jamming on a burr on the downlock cam.

French

Domaine(s)
  • Usinage (Métallurgie)
DEF

Saillie pointue ou rugueuse sur la surface du métal, attribuable à l'usinage.

OBS

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

Spanish

Save record 9

Record 10 2006-10-05

English

Subject field(s)
  • Wind Energy
DEF

A system [that] turns [a wind turbine] nacelle into the actual wind direction using a rotary actuator and a gear mechanism at the top of the tower.

French

Domaine(s)
  • Énergie éolienne
DEF

Système qui positionne la nacelle d'une éolienne en direction du vent à l'aide d'une servocommande et d'un mécanisme à roulement logés au sommet de la tour.

Spanish

Save record 10

Record 11 1988-03-24

English

Subject field(s)
  • Landing Gear (Aeroindustry)
CONT

The system is based on a special landing gear called a jump strut, which works by giving the aircraft the proper attitude for take-off,.... First, the system extends the nose gear, raising the nose. A few milliseconds later, the main gear is activated(’jumps’) in its turn, increasing the distance between wheels and fuselage, while rotation continues. After a vertical leap of some 6ft, the aircraft slows and descends slightly because of the increased drag at the higher angle of attack. Finally, and virtually without a pause, the aircraft resumes its climb.... The jump strut is extended under pilot control by a nitrogen-charged actuator. Once fired, it is immediately vented to atmosphere to enable the gear to resume its normal shock-attenuating function should the take-off run have to be aborted.

French

Domaine(s)
  • Atterrisseur (Constructions aéronautiques)

Spanish

Save record 11

Record 12 1983-02-01

English

Subject field(s)
  • Mechanical Components
OBS

The [main landing gear] actuator barrel and cap are integral.

French

Domaine(s)
  • Composants mécaniques
CONT

Sur la tête du vérin contrefiche [...] nous trouvons le système de verrouillage train bas [...]

Spanish

Save record 12

Record 13 1980-09-17

English

Subject field(s)
  • Aeroindustry
OBS

a sintered breather plug is provided at the opposite end [of the door actuator] to allow the piston to extend by the weight of the MLG [main landing gear].

French

Domaine(s)
  • Constructions aéronautiques

Spanish

Save record 13

Copyright notice for the TERMIUM Plus® data bank

© Public Services and Procurement Canada, 2026
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau

Display options

Change the order of display of the official languages of Canada
Option to display the non-official languages (Spanish or Portuguese)
Display definitions, contexts, etc., on records

Features

GCtranslate (available on the Government of Canada network only)

Use this artificial intelligence prototype to translate Government of Canada content up to and including Protected B. Available to employees of selected departments and agencies only.

Writing tools

The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.

Glossaries and vocabularies

Access Translation Bureau glossaries and vocabularies.

Date Modified: