FIELD: electrohydraulic servo control systems.
SUBSTANCE: proposed electrohydrostatic drive that can be used as off-line electrohydraulic actuating mechanism in control systems of flying vehicles has two nonreversible valve pumps for organizing reverse motion of hydraulic cylinder, characterized in comparatively simple mechanical design, reduced leakage, and less problems concerned with drive operation in comprehensive speed range. It also has electrohydraulic drain valve used to provide communication between passive space of hydraulic cylinder and hydraulic compensator controlled by electromagnets in response to polarity of servo drive error signal in relay mode.
EFFECT: simplified design, improved tightness of pump, enlarged speed range.
2 cl, 2 dwg
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