FIELD: turbojet engines.
SUBSTANCE: proposed device for taking characteristics of fan operating in bypass turbojet engine with separated nozzles of outer and inner loops is provided with pickups to measure behind fan. Device is furnished also with additional outlet device arranged on outer loop including closed space formed by outer shell and body of outer loop nozzle connected by holes with inner space of outer loop nozzle and furnished with air discharge pipeline with fitted-in adjustable throttle. Device is furnished also with air channels to discharge air in case of surging located before adjustable throttle in air discharge pipeline. Adjustable throttle is made in form of remote controlled gate.
EFFECT: possibility of effective and safe taking of fan characteristics directly on engine.
3 cl, 1 dwg
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