The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 08, 2014
Filed:
Nov. 19, 2007
Yong Bok Lee, Seoul, KR;
Chang Ho Kim, Seoul, KR;
Seung Jong Kim, Seoul, KR;
Sang Hwa Lee, Anyang-si, KR;
Hee Soo Kim, Gimhae-si, KR;
Yong Bok Lee, Seoul, KR;
Chang Ho Kim, Seoul, KR;
Seung Jong Kim, Seoul, KR;
Sang Hwa Lee, Anyang-si, KR;
Hee Soo Kim, Gimhae-si, KR;
Korea Institute of Science and Technology, Seoul, KR;
Abstract
An airfoil-magnetic hybrid bearing, which is a combination of a magnetic bearing and airfoil bearing includes a housing, an airfoil bearing, a magnetic bearing, coils, and a coupling segment. The housing is around a rotating shaft of a rotation device. The airfoil bearing is positioned between the housing and the rotating shaft to form dynamic pressure to levitate the rotating shaft during rotation of the rotating shaft. The magnetic bearing includes cores positioned radially between inner surface of the housing and outer surface of the airfoil bearing. The cores are projected to the center of the rotating shaft. The coils wound to the cores to levitate the rotating shaft using a magnetic attractive force generated by a current application thereto. The coupling segment is configured to couple the airfoil bearing to the magnetic bearing directly.