AIR-JET ENGINE TWO-DIMENSIONAL EXIT NOZZLE Russian patent published in 2004 - IPC

FIELD: aircraft industry; air jet engines.

SUBSTANCE: proposed two-dimensional exit nozzle for air-jet engine contains body, flaps hinge-connected with body and interconnected, articulated leverages connected with flaps and drives, systems to control changes of thrust vector and thrust reversal. Flaps are arranged inside nozzle body along side walls. One through port closed by panel is made on each side wall. Each panel is connected by tie-rod with corresponding movable supersonic flap. Control articulated leverage of each flap consists of pairs f pneumatic cylinder and hydraulic cylinder connected in tandem or two hydraulic cylinders. Ports closed by flap are made in upper and lower walls of body. Guide with movable rollers are installed in aperture of each port between its front side and common hinge joint. Guides accommodating movable sections of panels are installed on upper and lower walls of nozzle body.

EFFECT: provision of control of engine operating conditions over entire operating range, changes of thrust vector to pitch and course, thrust reversal.

3 cl, 10 dwg