Divergent flap actuation system for two-dimensional convergent - divergent turbojet exhaust nozzle

摘要

A pair of linear actuators is disposed within a gas turbojet engine exhaust nozzle for actuating a pivotable truss frame which in turn actuates a divergent flap. One end of each actuator is pivotally mounted to a fixed structural support within the exhaust nozzle while the other end of each actuator is pivotally mounted to the truss frame. Rollers mounted to the truss frame transmit actuation forces from the actuators to the divergent flap without transmitting parasitic actuation loads to the divergent flap.