Gap tube motor
US5939813A · kind A · utility
61Cited by
10References
9Claims
0Family size
Assignees
Inventor
Key dates
| Filing date | Feb 23, 1998 |
| Grant date | Aug 17, 1999 |
| Priority date | — |
| Expiry date | Feb 23, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K7/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The gap tube motor comprises a rotor, a stator and a gap tube which is arranged between the rotor and the stator, with at least two bearing apparatuses being arranged with a spacing in the axial direction (A) with respect to the rotor, and with at least one of the bearing apparatuses being designed as a bearing and drive apparatus and comprising both an electrical motor drive apparatus and a magnetic bearing apparatus in order to both drive the rotor and to journal the rotor in the radial direction without contact using this bearing and drive apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.