GEARED TURBOFAN ENGINE

摘要

A gas turbine engine turbine comprises a high pressure turbine (130) configured to rotate with a high pressure compressor (126) as a high pressure spool (132) in a first direction about a central axis. A low pressure turbine (134) is configured to rotate with a low pressure compressor (124) as a low pressure spool (136) in a second direction about the central axis. A mid-turbine frame (142) supports the high pressure turbine (130). The mid-turbine frame (142) includes a first bearing (156) supporting the high pressure turbine (130), and a strut (150) supporting the first bearing (156) at a location between the high pressure turbine (130) and the low pressure turbine (134). A plurality of vanes (158) are associated with a first stage of the low pressure turbine (134). The plurality of vanes (156) are positioned within the mid-turbine frame (142).