GAS TURBINE ENGINE

摘要

The invention relates to a gas turbine engine in which there is a rotor carried from a shaft, a first bearing supporting the shaft adjacent the rotor, a second bearing supporting the shaft remote from the rotor and a third bearing supporting the shaft at a further distance from the rotor. The first bearing is mounted so that under conditions of extreme inbalance of the rotor its supporting structure deforms to allow the rotor to invert, and the second bearing is adapted to allow rotation of the shaft during and after the inversion.