Development of a Vacuum Pump using Axial-Gap Self-Bearing Motor and Superconducting Magnetic Bearing
In recent years, superconducting technology has rapidly advanced and has been applied to several devices like magnetoencephalography(MEG) and magnetic resonance imaging(MRI). Superconductivity occur at extremely low temperatures, hence liquid helium is always used to achieve it. In order to conserve liquid helium, a circulation system has been recently developed. In the developed system, a pump will be used for cooling liquid helium. In addition, this pump will improve the capability of medical devices that use superconducting coils. In this paper, we propose the development of a vacuum pump that can be used at extremely low temperatures by using axial self bearing motor (ASBM) and superconducting magnetic bearing (SMB). The pump has the advantages of no friction, as there is no contact, high efficiency and no maintenance. The design of the pump is presented, and the control method is theoretically and practically analyzed. We performed an experiment to confirm that the reliability of the proposed vacuum pump.
Rotary Machinery Magnetic Bearing Superconducting Magnetic Bearing Vacuum Pump
Tatsushi Suzuki Satoshi Ueno Tsunehiro Takeda
Ritsumeikan University, 1-1-1 Nojihihigashi, Kusatsu, Shiga,525-8577 Japan University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa-shi, Chiba 277-8561, Japan
国际会议
The Twelfth International Symposium on Magnetic Bearings(第十二届国际磁悬浮轴承学术会议)
武汉
英文
740-748
2010-08-22（万方平台首次上网日期，不代表论文的发表时间）