Pump and motor unit and method for pumping fluids
US6293760A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2000 |
| Grant date | Sep 25, 2001 |
| Priority date | — |
| Expiry date | Mar 14, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D13/0666
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pump and motor unit 100 and method for pumping fluid is provided. The pump and motor unit 100 has a rotor element 102 which provides both pumping force and motor force. The rotor element 102 contains a fluid flow channels 200 which pump the fluid through the pump and motor 100 when rotated using centrifugal pump principles. The rotor element 102 further includes magnets 108, preferably permanent magnets, which generate a rotor magnetic field. First and second stator seconds 104 and 106 generate a stator magnetic field using coils 300-314. The rotor and stator magnetic fields interact and generate a torque which rotates the rotor element 102 using brushless DC motor principles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.