Rotational machine as well as apparatus having a rotational machine
US10389207B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 16, 2012 |
| Grant date | Aug 20, 2019 |
| Priority date | — |
| Expiry date | Jan 15, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2360/44
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A rotational machine, designed as a bearing free motor, including a stator designed as a bearing and drive stator having a stator winding and a disc-shaped rotor stored magnetically contact free within the stator. An axial height (H) of the rotor is smaller than or equal to a half diameter (D) of the rotor and with the rotor being passively stabilized by reluctance forces with regard to the stator both against a displacement along a rotational axis (A) of the rotor and also against a tilting from an equilibrium position (G), and with the stator including a permanent magnet for the generation of a homopolar magnetic flux (HΦ). The rotor is a ring-like rotor rotatably arranged about a pole piece of the stator and the rotor includes a ferromagnetic material (FM) and no permanent magnet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.