FIELD: machine building.
SUBSTANCE: hydraulic device is intended for control system of the propeller pitch change. The hydraulic device (100) contains a casing (10), a piston rod (20) driven by hydraulic liquid under pressure, a first drain channel (35) to drain outside internal leaks of the hydraulic liquid in said device (100), at that it contains a second drain channel (37) to drain outside the said drains of the hydraulic liquid in said device (100), at that the said first channel (35) and said second channel (37) are such oriented in two different directions, that each of said channels (35, 37) interacts at level of one of their ends inside the said casing (10) of the said device (100).
EFFECT: simplified process.
8 cl, 2 dwg
