TURBOMACHINE WITH THRUST BEARING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a thrust bearing structure having a function for improving a stability against a rotor vibration while supporting a thrust force in a thrust bearing.SOLUTION: The present invention relates to a turbomachine comprising a rotor 1 formed with a thrust collar part 4 and a thrust bearing device 2 for rotatably supporting the rotor 1 in which a sliding surface 3 of the thrust bearing device and a contact surface 5 of the thrust collar part 4 oppositely facing against the sliding surface have a gradient toward a rotor shaft.