Title:
LIQUID METAL-LUBRICATED SLIDING BEARING USABLE IN VACUUM ATMOSPHERE AND ANODE ROTARY X-RAY TUBE INCLUDING SAME
Document Type and Number:
WIPO Patent Application WO/2023/195758
Kind Code:
A1
Abstract:
The present invention relates to: a liquid metal-lubricated sliding bearing that has a reduced sliding average coefficient of friction and is improved to quickly dissipate heat; and an anode rotary X-ray tube including same. The present invention provides the anode rotary X-ray tube provided with: a vacuum tube having an inner space in a vacuum state; an anode assembly which is disposed in the inner space of the vacuum tube and with which electrons collide to emit X-rays; and the liquid metal-lubricated sliding bearing which can rotatably support the anode assembly. The liquid metal-lubricated sliding bearing is provided with: a bearing housing; a rotary shaft that rotates within the bearing housing; and a liquid metal that fills the space between the rotary shaft and the bearing housing. A plurality of surface-texturing patterns are formed on the outer circumferential surface of the rotary shaft and at least one of the upper or lower surface of a fastening flange of the rotary shaft.
Inventors:
CHAE YOUNGHUN (KR)
Application Number:
PCT/KR2023/004569
Publication Date:
October 12, 2023
Filing Date:
April 05, 2023
Export Citation:
Assignee:
KYUNGPOOK NAT UNIV IND ACADEMIC COOP FOUND (KR)
International Classes:
F16C33/10; F16C3/035; F16C3/14; F16C3/16; H01J35/10
Domestic Patent References:
| WO2015176861A1 | 2015-11-26 |
Foreign References:
| US20160047415A1 | 2016-02-18 | |||
| US20190103244A1 | 2019-04-04 | |||
| JPH08507647A | 1996-08-13 | |||
| US20140355743A1 | 2014-12-04 |
Attorney, Agent or Firm:
CHUN, Sunghoon (KR)
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