DEVICE FOR ARTICULATION OF OUTER SURFACE OF ENGINE SWIVEL PROPULSIVE JET NOZZLE AND AIRCRAFT ENGINE NACELLE Russian patent published in 1999 - IPC

FIELD: aeronautical engineering. SUBSTANCE: device includes hinges with hinged flaps whose one arm adjoins outer surface of nozzle and other arm adjoins engine nacelle. Hinges are mounted on engine nacelle. Hinged flap and engine nacelle adjoin by their and surfaces; to this end, engine nacelle is provided with end circular section on side of inner surface of wall. Cavity between flaps and outlet section of engine nacelle is brought in communication with atmosphere through holes which may be made in outlet section of engine nacelle or which may be made in form of slot between end faces of engine nacelle and flaps in area of hinged joint. Each arm of flap adjoining engine nacelle is fitted with spring pressed to its inner side. End circular section is toroidal in form with center of circle passing through axis of rotation of hinged flaps. EFFECT: minimum wear due to reliable adjoining of hinged flap to outer surface of swivel nozzle and engine nacelle. 6 cl, 3 dwg