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Aviation Glossary :: Hydraulic System Component  Aviation Glossary :: Hydraulic System Component FAA Written Test Preparation
Aviation Glossary Welcome to the Dauntless Aviation Glossary!

At Dauntless, our editorial staff maintains the web's largest unified glossary of aviation terms. This glossary is built from a combination of official, quasi-official, and proprietary sources (including original material that we develop oursselves). Uniquely, we often provide multiple definitions of a given term so that you can find that which best applies to you. In order to maximize your learning efficiency, this glossary (and similar ones for our international users) is incresingly fully integrated into our aviation learning apps, including our FAA written test prep and FAA practical test prep software and apps. If you like this glossary, you'll love them with their polished learning environments and world's best and clearest content (please do give them a try.).

Hydraulic System Component
Hydraulic System Component
A linear actuator moved in both directions by fluid power.
source: FAA Aviation Maintenance Technician Airframe Handbook (FAA-H-8083-31)
A hand-operated fluid pump that moves fluid during both strokes of the pump handle.
source: FAA Aviation Maintenance Technician Airframe Handbook (FAA-H-8083-31)
The portion of a fluid power system from which the selector valves receive their pressurized fluid.
source: FAA Aviation Maintenance Technician Airframe Handbook (FAA-H-8083-31)
A type of hydraulic system-pressure control valve. When the system pressure is low, as it is when some unit is actuated, the output of the constant-delivery pump is directed into the system. When the actuation is completed and the pressure builds up to a specified kick-out pressure, the pressure regulator shifts. A check valve seals the system off and the pressure is maintained by the accumulator. The pump is unloaded and its output is directed back into the reservoir with very little opposition. The pump output pressure drops, but the volume of flow remains the same. When the system pressure drops to the specified kick-in pressure, the regulator again shifts and directs fluid into the system. Spool-type and balanced-pressure-type system pressure regulators are completely automatic in their operation and require no attention on the part of the flight crew.
source: FAA Aviation Maintenance Technician Airframe Handbook (FAA-H-8083-31)

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