| 摘要 |
<p>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 also comprises a device (34) for generating turbulence in the primary flow limiting the jet noise, 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 toward the downstream in relation to a downstream end of the hollow main body, and a retracted position in which it is retracted into this hollow main body, and vice versa. Furthermore, the device (34) comprises a cylindrical support body (42) having an axis parallel to an axis (32) of the ejection cone, as well as at least one fin (46) supported by the body (42).</p> |
