FIELD: rocket engine nozzles.
SUBSTANCE: proposed extensible nozzle has fixed bell mouth extensible probe mounted on guide cylinder and probe locking mechanism consisting of retainers and flexible plates. Retainers are mounted on cantilever parts of flexible plates secured to the cylinder and their teeth are engageable with bell mouth and are embraced by bandage band with lock. Flexible plates are located under bandage band. Located on the inner side of guide cylinder near its shear are projections which embrace the bead near shear of fixed bell mouth together with retainer teeth. Ends of retainers which are opposite to teeth rest against outer surface of cylinder.
EFFECT: reduced overall dimensions locking unit; simplified construction of locking unit.
4 dwg
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