GAS EJECTION CONE FOR AN AIRCRAFT TURBOJET EQUIPPED WITH A DEVICE FOR GENERATING TURBULENCE IN A PRIMARY FLOW LIMITING JET NOISE, AND TURBOJET AND MOTOR ASSEMBLY ASSOCIATED THEREWITH

摘要

The present invention relates to a gas ejection cone (8) for an aircraft turbojet, the cone having a hollow main body (30) defining, on the outside, a radially inner skin (36) of an annular primary flow channel. According to the invention, it further includes a device (34) for generating turbulence in the primary flow, limiting jet noise, which is mounted so as to move on the main body so as to be able to be displaced from an extracted position in which it projects towards the downstream relative to a downstream end of the hollow main body and a retracted position in which it is retracted into its hollow main body, and vice versa. In addition, the device (34) includes a cylindrical support body (42) having an axis parallel to an axis (32) of the ejection cone, and also at least one fin (46) supported by the body (42).