GAS TURBINE ENGINE EXHAUST DUCT VENTILATION

摘要

A centerbody for the exhaust system of a gas turbine engine having an ups tream end mounted within an exhaust duct casing of the exhaust system. The c enterbody includes a plurality of ventilation openings defined in a centerbo dy wall which provide fluid flow communication between an internal cavity an d exhaust gas flow surrounding the centerbody, such that ventilating air fro m within the cavity can exit into the exhaust gas flow.