EXHAUST NOZZLE AND EXHAUST CHANNEL VARIABLE METHOD

摘要

PROBLEM TO BE SOLVED: To provide an exhaust nozzle that reduces noises by using a lightweight simple mechanism without the complication and upsizing of an exhaust nozzle structure and that increases efficiency during supersonic cruise, and an exhaust channel variable method.SOLUTION: A main nozzle piece 110 of an exhaust nozzle 100 is provided in such a manner that a back end side can swing inward and outward directions of an exhaust channel 101 centering on an opening/closing bent part 111 in the rear of an engine. A connecting nozzle piece 120 is connected to the adjacent main nozzle pieces 110 on both sides in a bendable manner. When the main nozzle piece 110 swings in the inward direction of the exhaust channel 101, the connecting nozzle piece 120 forms a protrusion 102 within the exhaust channel 101.