Hydraulic device of a control device, such as a blade pitch-change device

A hydraulic device includes a body, a piston rod configured to be actuated by a pressurized hydraulic fluid, and a first drainage channel for externally draining an internal leakage of hydraulic fluid in the device. The device includes a second drainage channel for externally draining the internal l...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Brettes Frédéric, Lavie Alain François Jean
Format:	Patent
Sprache:	eng
Schlagworte:	AEROPLANES AIRCRAFT AVIATION BLASTING COMBUSTION ENGINES COSMONAUTICS DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS HEATING HELICOPTERS HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS HYDRAULICS OR PNEUMATICS IN GENERAL JET-PROPULSION PLANTS LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	A hydraulic device includes a body, a piston rod configured to be actuated by a pressurized hydraulic fluid, and a first drainage channel for externally draining an internal leakage of hydraulic fluid in the device. The device includes a second drainage channel for externally draining the internal leakage of hydraulic fluid in the device, the first and second channels being oriented in two different directions and each of the channels communicating at one of the ends thereof inside the body of the device.