公开(公告)号：US20240159649A1

公开(公告)日：2024-05-16

申请号：US18503568

申请日：2023-11-07

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Yong Bok LEE ,  Wonil KWAK ,  YunSeok HA ,  Byul AN

IPC: G01N15/14 ,  G06T7/246 ,  G06T7/285 ,  G06T7/292 ,  G06T7/62 ,  G06V20/60

CPC classification number: G01N15/1463 ,  G01N15/1459 ,  G06T7/248 ,  G06T7/285 ,  G06T7/292 ,  G06T7/62 ,  G06V20/60 ,  G01N2015/1075 ,  G01N2015/1477 ,  G01N2015/1493

Abstract: Provided is a fluid monitoring method including photographing a particle in a flowing fluid using a first camera, photographing the particle using a second camera spaced apart from the first camera, and analyzing the particle using images captured by each of the first camera and the second camera, in which the analyzing of the particle includes calculating a volume of the particle, calculating a velocity of the particle moving in the fluid, calculating a density of the particle using the volume and the velocity, and identifying a type of the particle using the density.

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.