Afterbody for aircraft`s jet engine, has diaphragm forming assembly comprising moving unit permitting to displace annular plates relative to each other to vary size of passage section defined by slots in plates

摘要

The afterbody (15) has a diaphragm forming assembly (40) comprising two annular plates (46, 50) covering each other and each pierced with slots (48, 52) that together define a passage section. The plate (46) is fixedly mounted on an afterburning casing (16), and the plate (50) is movably mounted on the casing. The assembly has a moving unit (60) permitting to displace the plates relative to each other to vary the size of the passage section defined by the slots.