FIELD: aircraft industry; turbojet engines.
SUBSTANCE: invention relates to design of nozzles of turbojet engines. Proposed nozzle has fixed body with cardan joint and movable body connected by posts with movable part of cardan joint, movable and fixed bodies of nozzle are in contact through spherical shell. Posts and movable body of nozzle in double-flow turbojet engine are made hollow. Movable body space of nozzle communicates with surrounding medium, fixed and movable parts of cardan joint are made in form of hollow cylinders communicating through channel. Fixed cylinder communicates with air space of engine outer loop, and movable one communicates through hollow posts with space of nozzle movable body.
EFFECT: provision of effective cooling of cardan joint heated to high temperatures, and also hollow posts and movable body of nozzle, reduced mass of nozzle and improved reliability in operation.
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