主权项 |
1. A centrifugal compressor that includes: a shaft that is rotatably supported by a magnetic bearing; an impeller that is fixed to the shaft; and an auxiliary bearing that supports the shaft when the shaft is displaced from a reference position, the centrifugal compressor comprising:
a first auxiliary bearing, as the auxiliary bearing, which is arranged on a side of a first end of the shaft; a second auxiliary bearing, as the auxiliary bearing, which is arranged on a side of a second end of the shaft; and a stopper that is provided only for the first auxiliary bearing among the first auxiliary bearing and the second auxiliary bearing, that is fixed to the shaft, and that restricts a movement of the shaft in both directions in an axial direction of the shaft by the stopper being brought into contact with the first auxiliary bearing. |