Pump with rotor position measurement system
US8957674B2 · kind B2 · utility
26Cited by
2References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2010 |
| Grant date | Feb 17, 2015 |
| Priority date | — |
| Expiry date | Nov 5, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F11/029
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pump comprising an electrical motor drive (2) and a pump engine (3), the pump engine having a stator portion (32) and an axially and rotatably movable rotor portion (30) mounted in the stator portion. The electrical motor drive comprises a rotor (6) with a permanent magnet (20), a stator (4) with a magnetic circuit (10) and one or more coils, and a position sensor (8) comprising at least one magnetic field detector (24a, 24b) positioned in the proximity of the rotor permanent magnet and configured to detect both rotational and axial movement of the rotor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.