ASSEMBLY OF A DOUBLE-FLOW TURBOJET ENGINE WITH AN EPICYCLOIDAL OR PLANETARY GEARBOX Russian patent published in 2022 - IPC F02C3/107 

FIELD: engine technology.

SUBSTANCE: invention relates to a turbojet engine comprising a shaft (AC) surrounded by a low-pressure rotor (RB) surrounded by a coaxial and independent cascade (CH) of high pressure, this turbojet engine includes from the upstream fragment (AM) to the downstream fragment (AV): a fan driven by shaft action (AC); low-pressure compressor supported by a rotor (RB); inter-compressor housing; high-pressure compressor and high-pressure turbine belonging to the high-pressure cascade (CH); inter-turbine housing (18); low pressure turbine (19) supported by a rotor (RB); exhaust housing (21); this turbojet engine includes: upstream rotor bearing (24) supported by an inter-compressor housing; downstream rotor bearing (26) supported by an exhaust housing (21); gearbox (22) below downstream of the downstream bearing (26) through which the rotor (RB) drives the shaft (AC); downstream bearing (34) of the shaft downstream of the downstream bearing (26) of the rotor.

EFFECT: it is possible to improve the retention of low-pressure rotating elements in order to limit the use of complex bearings for damping oscillation modes.

9 cl, 5 dwg