Patent ID: 8491265

Claim:
A machine, comprising: a rotor; a bearing assembly rotationally mounting the rotor, the bearing assembly including an inner race and an outer race, the inner race at least engaging the rotor; a rotor imbalance load limiting system at least engaging the outer race of the bearing assembly, the rotor imbalance load limiting system including: a plurality of circumferentially spaced variable volume hydraulic fluid receptacles, each variable volume hydraulic fluid receptacle comprising a bellows having hydraulic fluid disposed therein; a substantially fixed volume hydraulic fluid receptacle surrounding the plurality of variable volume hydraulic fluid receptacles, the substantially fixed volume hydraulic fluid receptacle having hydraulic fluid disposed therein; a plurality of flow passages interconnecting the substantially fixed volume hydraulic fluid receptacle with each of the variable volume hydraulic fluid receptacles; a plurality of circumferentially spaced pistons, each piston at least engaging one of the bellows and at least engaging the outer race of the bearing assembly; a plurality of first check valves, each of the first check valves disposed at least partially within one of the flow passages and configured to selectively allow hydraulic fluid to flow from one of the variable volume hydraulic fluid receptacles into the substantially fixed volume hydraulic fluid receptacle; and a plurality of second check valves, each of the second check valves disposed at least partially within one of the flow passages and configured to selectively allow hydraulic fluid to flow from the substantially fixed volume hydraulic fluid receptacle into one of the variable volume hydraulic fluid receptacles.