公开(公告)号：US20200271545A1

公开(公告)日：2020-08-27

申请号：US16792886

申请日：2020-02-18

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Yong Bok LEE ,  Wonil KWAK ,  Junsang KONG ,  Jungwan KIM ,  Yunseok HA

IPC: G01M13/045 ,  F16C41/00 ,  H04W4/38 ,  H02N2/18

Abstract: Provided is a system for real-time condition diagnosis of a bearing module including a self-power generation module installed in an outer ring of a bearing to generate electricity using vibration generated from a micro whirling motion of the bearing, a behavior detection unit installed in the bearing to detect behavior information of the bearing in real time, a wireless transmission module connected to the behavior detection unit to transmit the real-time detected behavior information of the bearing to an external device, and a condition diagnosis unit that receives the behavior information of the bearing transmitted from the wireless transmission module and diagnoses condition of the bearing in real time, wherein the real-time behavior information of the behavior detection unit installed in the bearing is transmitted through the electricity obtained by the self-power generation module.

公开(公告)号：US20230407914A1

公开(公告)日：2023-12-21

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.

公开(公告)号：US20240384755A1

公开(公告)日：2024-11-21

申请号：US18654131

申请日：2024-05-03

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Yong Bok LEE ,  YunSeok HA ,  Jungwan KIM ,  Byul AN

IPC: F16C32/04 ,  F16C17/04

Abstract: The present disclosure relates to a hybrid thrust bearing that combines an airfoil bearing and a magnetic bearing to support a rotating shaft with a disk-shaped thrust disk, and the magnetic bearing includes a disk-shaped housing into which the rotation shaft is inserted through a hole formed in a center and facing the thrust disk, a ring-shaped inner pole part formed around the hole on one side of the housing facing the thrust disk, a ring-shaped outer pole part disposed outside the inner pole part, an attachment part provided between the inner pole part and the outer pole part, and a coil stored in the attachment part, wherein a part of the airfoil bearing is inserted into the attachment part.