公开(公告)号：US11905993B2

公开(公告)日：2024-02-20

申请号：US17956246

申请日：2022-09-29

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Yong Bok Lee ,  Jungwan Kim ,  Yunseok Ha ,  Byul An ,  Wonil Kwak ,  Yeong-do Lee

IPC: F16C32/04

CPC classification number: F16C32/0442 ,  F16C32/0478 ,  F16C2360/45

Abstract: A turbomachine according to an embodiment of the present disclosure may include a rotary shaft, a magnetic bearing including a core body configured to surround the rotary shaft, a plurality of poles radially extending from an inner surface of the core body toward the rotary shaft, and coils wound around the plurality of poles to levitate the rotary shaft by using a magnetic force generated by a magnetic field formed by applied electric current, a sleeve journal bearing disposed between the rotary shaft and the magnetic bearing so as to surround the rotary shaft and configured to levitate the rotary shaft by generating a dynamic pressure when the rotary shaft rotates, and a permanent magnet disposed between the plurality of poles and configured to support the rotary shaft by using a magnetic force.