Invention Grant
- Patent Title: Hybrid magnetic bearing
- Patent Title (中): 混合磁轴承
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Application No.: US11988773Application Date: 2006-08-30
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Publication No.: US07683514B2Publication Date: 2010-03-23
- Inventor: Hiroyuki Onuma , Toru Masuzawa , Yohji Okada
- Applicant: Hiroyuki Onuma , Toru Masuzawa , Yohji Okada
- Applicant Address: JP
- Assignee: Iwaki Co., Ltd
- Current Assignee: Iwaki Co., Ltd
- Current Assignee Address: JP
- Agency: Schwegman, Lundberg & Woessner, P.A.
- Priority: JP2005-313989 20051028
- International Application: PCT/JP2006/317143 WO 20060830
- International Announcement: WO2007/049396 WO 20070503
- Main IPC: H02K7/09
- IPC: H02K7/09

Abstract:
In a hybrid magnetic bearing, the electromagnet has a core wound with a control coil and has a main pole and a commutating pole with a commutating pole permanent magnet provided approximately parallel to each other at predetermined intervals in a protruding condition radially or axially to the rotor. In the magnetic bearing provided radially, two electromagnets are placed oppositely to each other across the rotor in an approximately horizontal position, and the rotor is arranged so as to have a predetermined gap with the main pole and the commutating pole, and the permanent magnet is provided between the adjacent electromagnets. In the magnetic bearing provided axially, two electromagnets are placed in parallel in an approximately horizontal position, and the rotor is arranged so as to have a predetermined gap with the main pole and the commutating pole, and the permanent magnet is provided between the adjacent electromagnets.
Public/Granted literature
- US20090079284A1 Hybrid Magnetic Bearing Public/Granted day:2009-03-26
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