Науково-Дослідний Та Проектно-Конструкторський Інститут Промислових Гідроприводів Та Гідроавтоматики
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Amplifier includes controlled element nozzle-slide, slide of which is connected to armature of electromechanical transformer and turned to one of the ends of the nozzle, with channel connected through throttle with constant cross section to line of supply of working liquid and electro-controlled back valve connected in sequence to element nozzle-slide, with pusher for drive of shutoff element resting on fixed seat. Back valve is connected between element nozzle-slide and throttle with constant cross section, seat of shutoff element is placed at the end of the nozzle opposite to end turned to slide, and pusher is placed with possibility of displacement in channel of the nozzle and is rigidly connected to slide installed with respect to nozzle at distance larger than working stroke of adjustment of element nozzle-gate and smaller or equal to maximal stroke of armature of electromechanical transformer.