Jet engine comprising an afterburner cooled by a ventilation flow with variable flow

摘要

The after body (15) has a diaphragm forming assembly (40) with two annular plates (46, 50) in contact with one another. A section of a passage corresponds to mutual covering zones between slots (48) of the plate (46) and slots (52) of the plate (50). The assembly is designed such that dilatation of thermal protection liner (26) under the effect of thermal constraints causes a radial displacement towards exterior of the plate (50) with respect to the plate (46) leading to increase of width of passage section (74) defined by the slots.