Rotary pump
US9835158B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 1, 2010 |
| Grant date | Dec 5, 2017 |
| Priority date | — |
| Expiry date | May 24, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K1/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Disclosed is a rotary pump including a magnetic rotor arranged in a pump housing and having a magnetic rotor plane, which rotor is operatively connected to a drive for conveying a fluid. The drive is a bearingless motor having a stator configured as a bearing stator and drive stator and having a magnetic stator plane, wherein the stator bears a drive coil and a bearing coil lying in the stator plane and/or a drive bearing coil. The rotor is magnetically contactlessly journalled within the stator, wherein an axial height (H) of the rotor is smaller than or equal to half a diameter (D) of the rotor so that the rotor is passively magnetically stabilized by reluctance forces with respect to the magnetic stator plane both against axial displacement and against a tilt from an equilibrium position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.