Porous core cowling for a turbojet engine

Abstract

A core cowling for a bypass turbojet engine consisting of an internal wall (7) bathed in the main airflow (1) of said turbojet engine and an outer wall (6) bathed in the secondary airflow (2) thereof, the two walls between them forming a cavity (5) which receives the ventilation airflow originating from the hot parts of the turbojet engine to be injected into the secondary airflow through said outer wall, wherein said outer wall is pierced with multiple perforations (8) which are uniformly distributed on the circumference of said barrel and spread longitudinally along said outer wall in the direction of flow of the secondary airflow (2), so as to connect said cavity that receives the ventilation airflow to said secondary flow along at least two parallel circles of perforations.

Dependencies are inferred from the claim text.