FIELD: engine building.
SUBSTANCE: invention relates to a dual-flow turbojet engine with a central shaft (AC) surrounded by a high-pressure main part (CH) rotating around the same longitudinal axis (AC) while being independent in rotation, wherein said engine comprises: a fan (13) actuated by the central pressure shaft; a high-pressure compressor (16) and a high-pressure turbine (17), installed in the high-pressure main part (CH); an inter-turbine body (18); a low-pressure turbine (19) installed on the low-pressure rotor (RB) surrounding the central shaft (AC); an exhaust body (21) whereon the exhaust cone (23) is installed; a gearbox (22), by means whereof the low-pressure rotor (RB) actuates the central pressure shaft (AC); two bearings (34) installed on the exhaust body (21) and, accordingly, receiving the central shaft (AC) and the low-pressure rotor (RB); a bearing (26) installed on the inter-turbine body (18) and receiving the low-pressure rotor (RB).
EFFECT: retention of the rotating low-pressure elements is improved in order to limit the use of complex bearings for damping oscillation modes.
9 cl, 7 dwg
Authors
Dates
2022-09-08—Published
2019-11-21—Filed