FIELD: aircraft engineering; engines.
SUBSTANCE: invention can be used in automatic control systems of gas-turbine engines. According to invention, two discrete-action (open-closed electromagnetic valves are included additionally into device. First electromagnetic valve connects piston space of hydraulic booster with high-pressure main line, and second electromagnetic valve, with drain pressure main line, both electromagnetic valves being connected to control unit and chosen to provide passing of working medium through electromagnetic valve in open position in amount 3-4 times greater than maximum possible flow rate through supply jet.
EFFECT: improved reliability of hydraulic booster, reliability of gas-turbine engine in operating and safety of flight.
1 dwg
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