Gas turbine engine with active tip clearance control device and corresponding operating method

摘要

An active tip clearance control (ATCC) apparatus (38) of an aircraft gas turbine engine is situated within a pressurized core case (13) of the engine. First and second portions (34,42) of bypass air flow passing through a compressed core compartment (30) and the ATCC apparatus (38), are isolated from one another in order to improve both the ATCC performance and bypass air duct performance.