Gas turbine engine exhaust duct ventilation

摘要

A centerbody 20 for the exhaust system of a gas turbine engine having an upstream end mounted within an exhaust duct casing of the exhaust system. The centerbody 20 includes a plurality of ventilation openings 50 defined in a centerbody wall which provide fluid flow communication between an internal cavity 28 and exhaust gas flow surrounding the centerbody 20, such that ventilating air from within the cavity 28 can exit into the exhaust gas flow.