FIELD: machine building.
SUBSTANCE: proposed power amplifier is designed for aircraft electrohydraulic automatic control systems. The amplifier comprises electro mechanic converter with its output link articulated, via a lever, with control member of the flat spool hydraulic control valve-cylindrical sleeve. The base of the latter has working openings and working fluid feed and discharge channels. Aforesaid base communicates with electro mechanic converter via the cup. The cylindrical bushing is pressed in the electro mechanic converter lever, along its lengthwise axis, or fitted with a radial clearance therein. The base of the flat spool hydraulic control valve is linked up with aforesaid converter with the help of a rigid bushing furnished with two face flanges. The spacer is added to the design perpendicular hydraulic control valve, furnished with two face flanges. One of the said flanges is jointed to the electro mechanic converter flange, another is connected to the hydraulic control valve base. Two covers are attached to the said spacer, perpendicular to cylindrical sleeve axis and opposite each other. Each of the said covers is furnished with working opening of hydraulic control valve and working fluid feed and discharge channels. Protective bushings are pressed in the covers. Radial seal is arranged between the hydraulic control valve base and aforesaid cup.
EFFECT: simplified design.
2 dwg
