CONE jet nozzle Aviation turbojet engine equipped with a device turbulent flow of the primary circuit, limit noise from JET

摘要

1. cone (8) of the nozzle aviation turbojet, comprising a hollow main body (30), the outer side of which is an inner side (36) delimiting radially an annular channel (12) of the flow (14) of the first circuit of the turbojet engine, wherein in that it comprises a device (34) forming the turbulence of said flow (14) of the first circuit, configured to move in the hollow main body (30) from an extended position in which it acts downstream of the races laid the downstream edge of said hollow main body, a retracted position in which it is retracted into said hollow main body (30), and in the opposite direction, said device (34) forming turbulence comprises a cylindrical bearing housing (42), whose axis parallel to the axis (32) of the nozzle cone, as well as at least one rib (46) disposed on said cylindrical support casing (42). ! 2. The cone (8) of the nozzle according to claim 1, characterized in that the device (34) comprises a turbulence forming two ribs (46) oriented substantially horizontally and mounted on both sides of said cylindrical bearing casing (42). ! 3. The cone (8) of the nozzle according to claim 1, characterized in that the hollow main body (30) comprises a groove (40) for placing each edge (46) of the device (34) forming turbulence while it is in the retracted position. ! 4. The cone (8) of the nozzle according to claim 1, characterized in that the device (34) forming turbulence in the retracted position forms, together with the hollow main body (30) on susches