Abstract: A fluid intake system including a fluid collector scoop designed to be fastened on an inside surface of a wall in order to collect the fluid flowing on the outside of the wall; and an extraction duct suitable for directing the fluid from an inlet orifice into the duct to at least one outlet orifice from the duct, is provided. The scoop is arranged so as to direct the collected fluid towards the inlet orifice of the extraction duct. In this system, at least one outlet orifice is of substantially elliptical section with a ratio of the major diameter of the ellipse over its minor diameter being greater than 1.5.

Abstract: The invention aims at providing a sufficient air exchange in the engine area without raising the static pressure in the outlet area of the air exchange duct. In order to do this, the invention provides for an outlet section capable of concentrating the outlet of the exchange airflow towards zones with smaller static pressure. A turbojet engine outlet according to the invention provides an engine cowl, which comprises an external wall of a circumferential duct in which circulates an exchange airflow of the turbines, and an airflow mixer. At the outlet, the duct delivers the exchange airflow towards the mixer for the primary and secondary airflows of the turbojet engine. The mixer presents hot and cold lobes. In particular, the engine outlet also includes guiding of the exchange airflow towards the cold lobes.

Abstract: A fluid intake system (10) comprising a fluid collector scoop (12) designed to be fastened on an inside surface of a wall (16) in order to collect the fluid flowing on the outside of the wall; and an extraction duct (14) suitable for directing the fluid from an inlet orifice into said duct to at least one outlet orifice from said duct; the scoop being arranged so as to direct the collected fluid towards the inlet orifice of the extraction duct. In this system, at least one outlet orifice (25) is of substantially elliptical section with a ratio of the major diameter of the ellipse over its minor diameter being greater than 1.5.

Abstract: A biconical exhaust cone for a civil aviation jet engine, this cone delimiting, on its outside, an annular exhaust stream of combustion gases and comprising an upstream frustoconical portion extending outward from upstream to downstream and a downstream frustoconical portion extending inward from upstream to downstream, wherein the downstream frustoconical portion comprises a segment which defines an outer annular surface of which one tangent, at any point along the longitudinal axis of the cone, is inclined by an angle greater than 40° and less than 90° with respect to this longitudinal axis.

Abstract: The invention aims at providing a sufficient air exchange in the engine area without raising the static pressure in the outlet area of the air exchange duct. In order to do this, the invention provides for an outlet section capable of concentrating the outlet of the exchange airflow towards zones with smaller static pressure. An turbojet engine outlet according to the invention provides an engine cowl, which comprises an external wall of a circumferential duct in which circulates an exchange airflow of the turbines, and an airflow mixer. At the outlet, the duct delivers the exchange airflow towards the mixer for the primary and secondary airflows of the turbojet engine. The mixer presents hot and cold lobes. In particular, the engine outlet also comprises guiding means of the exchange airflow towards the cold lobes.