Thrust gas bearing, centrifugal compressor equipped with thrust gas bearing, and refrigerating apparatus provided with the same

摘要

Problem to be solved: to efficiently cool the thrust gas bearing.The thrust gas bearing (60) comprises a flange (17), a first base portion (61), a first gas film forming portion (63), a second base portion (62), a second gas film forming portion (64), and a cooling flow path (67).The cooling flow path (67) includes a first flow path (61b) and a second channel (62b).The first flow path (61b) is formed on one end side in the axial direction of the first base portion (61) and extends from the axial center side to the outer peripheral side of the first base portion (61).The second channel (62b) is formed on the other side in the axial direction of the second base portion (62) and extends from the outer peripheral side of the second base portion (62) toward the axial center.The second channel (62b) is located downstream of the first channel (61b).Diagram