AIRCRAFT HYDRAULIC SYSTEM COMPRISING AT LEAST ONE SERVO-CONTROL, AND AN ASSOCIATED ROTOR AND AIRCRAFT

摘要

A hydraulic system of an aircraft, the system comprising at least one servo-control, each servo-control comprising at least one cylinder together with a drive rod and a piston arranged in each cylinder. Between each cylinder of servo-control and the drive rod of that servo-control, at least one servo-control presents main sealing means with controlled leakage allowing a hydraulic fluid to leak out from the cylinder, the hydraulic system further comprising at least one enclosure, each cylinder of the servo-control being arranged inside the enclosure so that the fluid is collected in the enclosure.

主权项

1. A hydraulic system for an aircraft, the hydraulic system comprising at least one servo-control, each servo-control comprising at least one cylinder together with a drive rod and a piston arranged in each cylinder, the drive rod of a servo-control being secured to each piston of the servo-control, the drive rod of a servo-control passing through the corresponding cylinder of the servo-control, at least one servo-control presenting between each cylinder of the servo-control and the drive rod of the servo-control main sealing means with controlled leakage allowing a leak of a hydraulic fluid out from the cylinder, the hydraulic system including at least one enclosure, each cylinder of the servo-control being arranged inside the enclosure so that the fluid is collected in the enclosure, wherein the hydraulic system includes a cap for surrounding a hub of a rotor, the enclosure being connected to the cap by a rotary system allowing relative rotary movement between the enclosure and the cap.