Magnetically levitated pump and controlling circuit
US6626644B2 · kind B2 · utility
82Cited by
7References
23Claims
0Family size
Assignees
Inventor
Key dates
| Filing date | Oct 24, 2001 |
| Grant date | Sep 30, 2003 |
| Priority date | — |
| Expiry date | Oct 24, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S415/90
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An impeller has one surface with a soft magnetic member arranged closer to an inner diameter thereof, opposite an electromagnet, the impeller is provided with a permanent magnet arranged closer to an outer diameter thereof, opposite a permanent magnet of a rotor, and the impeller has the other surface provided with a ferromagnetic body, opposite a permanent magnet of a casing, thereby magnetically levitating the impeller, and allowing a motor stator to rotate a motor rotor to rotate the impeller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.