Pump
US12345270B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2020 |
| Grant date | Jul 1, 2025 |
| Priority date | — |
| Expiry date | Feb 12, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2213/03
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pump includes: a rotor; a magnetic bearing supporting the rotor by a magnetic force; a drive mechanism rotationally driving the rotor; a pump mechanism including an impeller attached to the rotor; and a control unit controlling the magnetic bearing which includes: a bearing rotor member in the rotor formed from a magnetic material; and a bearing stator member facing the bearing rotor member, the bearing stator member has: a core formed from a magnetic material; and a coil wound around the core, the drive mechanism includes: a driven member adjacent in a radial direction to the bearing rotor member; and a drive portion facing the driven member in the radial direction, and magnetically coupled to the driven member to drive the rotor, and the control unit corrects rotational position of the rotor based on a detection signal from a first sensor portion capable of detecting displacement of the rotor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.