Integral electronically commutated drive system
US5197865A · kind A · utility
28Cited by
19References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 6, 1992 |
| Grant date | Mar 30, 1993 |
| Priority date | — |
| Expiry date | Feb 6, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K5/128
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A pump assembly includes a pump head that is coupled to a permanent magnet rotor. The rotor is enclosed in a cavity defined by a fluid-tight cup that has an open first end and a closed second end. This cavity is in fluid connection with the pump head through its open first end. Outside the cup enclosure are disposed a plurality of electrical stator windings. A housing encloses all of the foregoing elements, and may also enclose a circuit board that includes circuitry for driving the stator windings. The pump assembly thereby provided is compact, efficient, and reliable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.