发明授权
- 专利标题: High performance magnetic bearing
- 专利标题(中): 高性能磁性轴承
-
申请号: US98117申请日: 1993-07-27
-
公开(公告)号: US5543673A公开(公告)日: 1996-08-06
- 发明人: Shin Katsumata , Martha Fisher-Votava , David Halsey
- 申请人: Shin Katsumata , Martha Fisher-Votava , David Halsey
- 申请人地址: IL Rockford
- 专利权人: Sundstrand Corporation
- 当前专利权人: Sundstrand Corporation
- 当前专利权人地址: IL Rockford
- 主分类号: F16C39/06
- IPC分类号: F16C39/06 ; H02K7/09
摘要:
A magnetic bearing system (24) supports a shaft (20). The bearing system (24) includes a magnetic rotor (34) and a stator element (36) positioned in proximity to the rotor (34). A plurality of first electromagnets (40, 41, 42) are mounted in the stator element (36). The first electromagnets (40, 41, 42) are of relatively large size to provide high load bearing capacity. A plurality of second electromagnets (44, 45, 46) are mounted in the shator element (36) in spaced relation with the first electromagnets (40, 41, 42), the second electromagnets (44, 45, 46) being of relatively small size to provide high frequency response. Displacement sensors (56, 57, 58) sense position of the shaft (20) relative to the stator element (36). A controller (60) is coupled to the displacement sensors (56, 57, 58) and the electromagnets (40, 41, 42, 44, 45, 46) for controlling current thereto. The controller (60) develops a first set of current signals to the first electromagnets (40, 41, 42) and a second set of current signals to the second electromagnets (44, 45, 46).
公开/授权文献
- US6133113A Method of manufacturing shallow trench isolation 公开/授权日:2000-10-17
信息查询