MID-SPAN GAS BEARING

摘要

A centrifugal compressor (200) includes a rotor assembly (220, 230, 239) with a shaft (220) and a plurality of impellers (230, 239), bearings (250, 255) located at ends of the shaft (220) and configured to support the rotor assembly (220, 230, 239), a sealing mechanism (280, 285) disposed between the rotor assembly (220, 230, 239) and the bearings (250, 255), and a gas bearing (290) disposed between the plurality of impellers (230, 239) for supporting the shaft (220) and receiving a working gas from an impeller (230) downstream from a location of the gas bearing (290).