发明名称 |
Magnetically leviated superconducting bearing |
摘要 |
A magnetically levitated superconducting bearing includes a magnet (2) mounted on a shaft (12) that is rotatable around an axis of rotation and a Type II superconductor (6) supported on a stator (14) in proximity to the magnet (2). The superconductor (6) is positioned so that when it is cooled to its superconducting state in the presence of a magnetic field, it interacts with the magnet (2) to produce an attractive force that levitates the magnet (2) and supports a load on the shaft (12). The interaction between the superconductor (6) and magnet(2) also produces surface screening currents (8) that generate a repulsive force perpendicular to the load. The bearing also has means for maintaining the superconductor at a temperature below its critical temperature (16, 18). The bearing could also be constructed so the magnet (2) is supported on the stator (14) and the superconductor (6) is mounted on the shaft (12). The bearing can be operated by cooling the superconductor (6) to its superconducting state in the presence of a magnetic field.
|
申请公布号 |
US5256638(A) |
申请公布日期 |
1993.10.26 |
申请号 |
US19910791834 |
申请日期 |
1991.11.14 |
申请人 |
UNITED TECHNOLOGIES CORPORATION |
发明人 |
WEINBERGER, BERNARD R.;LYNDS, JR., LAHMER |
分类号 |
F16C39/06;(IPC1-7):H02K7/09;G11B5/55 |
主分类号 |
F16C39/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|