AIRCRAFT JET ENGINE PROVIDED WITH A DEVICE FOR REDUCING PROPULSION JET NOISE

摘要

The present invention relates to an aircraft reactor comprising at least one nozzle (1) ejecting a propulsive jet or several confluent propellant jets, said nozzle (1) having an output ring (2), characterized in that said ring of outlet (2) comprises means for disturbing said at least one propulsive jet consisting of at least one pair (3 to 10) of ducts (3a, 3b, ..., 10a, 10b) through which air jets are ejected. said ducts (3a, 3b, ..., 10a, 10b) opening at the outlet of said nozzles (1), and in that the ducts (3a, 3b, ..., 10a, 10b) of each pair (3 to 10) are arranged convergent relative to each other at an angle of 40 to 70 degrees to generate at the output a triangle of interaction of the air jets penetrating into the propulsive jet with a given incidence.