Trustable air intake, in particular a 2-dimensional oblique shock diffuser for jet engines powering high-performance aircraft

摘要

The invention relates to an adjustable air intake, in particular a 2-dimensional oblique shock diffuser for jet engines driving a high-performance aircraft, which comprises upper ramps 1a and a lower collection lip 2 articulated on the front of the bottom of the air intake 3 and pivotable around a transversal axis 4. The overall pivoting range is under the operating angle, divided into a lower subsonic - transonic operating area A forming a relatively large angle between the lower adjustment point a and a median adjustment point b and into an upper supersonic operating area B forming a smaller angle between the median adjustment point b and the upper adjustment point c. It further comprises an auxiliary air intake 5, controlled as a function of the air collection lip 2 in the upper operating area B. IMAGE