ROCKET ENGINE NOZZLE Russian patent published in 2018 - IPC F02K9/84 F02K9/97 

FIELD: rocket equipment.

SUBSTANCE: invention relates to rocket technology and can be used in the development of rocket engines. Nozzle of the rocket engine contains a fixed part and a hermetic joint tightly fastened with two elastic hinges to it, one elastic hinge – sealing, the other – a supporting one. Elastic joints have a common center of rotation. Sealing elastic hinge is fixed rigidly to the stationary part of the nozzle with a large spherical radius and is fixed to the turning part with a smaller spherical radius, as a result of which it seals the volume of the combustion chamber. Support elastic hinge is rigidly fixed to the fixed and rotatable parts of the nozzle and is located entirely outside the combustion chamber.

EFFECT: invention makes it possible to reduce the load perceived by the suspension assembly, to increase its stability and to reduce the hinge moment of the nozzle in the entire range of acting pressures while maintaining the stable shape of the elastic hinge.

7 cl, 3 dwg