초록 ▼

A three dimensional converging/diverging nozzle assembly includes upstream converging nozzle flaps pivotally connected to an inner unison ring, diverging nozzle flaps pivotally connected to the downstream ends of the converging flaps, and external connectors pivotally connected at their downstream e

A three dimensional converging/diverging nozzle assembly includes upstream converging nozzle flaps pivotally connected to an inner unison ring, diverging nozzle flaps pivotally connected to the downstream ends of the converging flaps, and external connectors pivotally connected at their downstream ends to the downstream ends of the diverging flaps and at their upstream ends to an outer unison ring. The outer unison ring is interconnected to the inner unison ring such that axial translation of either unison ring results in axial translation of the other unison ring, but at a different rate of speed. In one embodiment the unison rings are interconnected by a cam track and linkage arrangement.

대표청구항 ▼

A variable area nozzle assembly for a gas turbine engine having an axis comprising: engine fixed structure; a unison ring assembly comprising radially inner axially translatable unison ring means, radially outer axially translatable unison ring means, and interconnection means connecting said inner

A variable area nozzle assembly for a gas turbine engine having an axis comprising: engine fixed structure; a unison ring assembly comprising radially inner axially translatable unison ring means, radially outer axially translatable unison ring means, and interconnection means connecting said inner and outer unison ring means and causing relative axial movement therebetween in accordance with a predetermined relationship during translation of said unison ring assembly; at least one actuator adapted to engage said unison ring assembly and translate said inner and outer unison ring means; a plurality of rotatable and axially translatable first flaps defining an upstream nozzle; means connecting said flaps to said inner unison ring means; a plurality of second flaps downstream of said first flaps and interconnected to said first flaps for rotation relative thereto, said second flaps being axially translatable and rotatable; and means connecting said second flaps to said outer unison ring means.