Engine modularity.

摘要

The low pressure compressor (11) and fan (2) together with the intermediate case (10) are removable as a unit from the core engine by removal of the nose cone (62,58) and a stub shaft (40) at the front of the low pressure turbine shaft (38) and at the internal diameter of the fan hub (50) to provide access to attachment bolts (53) at the inner portion of the intermediate case (10) which holds the bearing (34) for the high pressure rotor (35) in position within the intermediate case (10) after assembly of the engine.