Submersible electric pump having a shaft with spaced apart shoulders
US9581158B2 · kind B2 · utility
1Cited by
41References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 8, 2014 |
| Grant date | Feb 28, 2017 |
| Priority date | — |
| Expiry date | Oct 20, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C2240/808
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A submersible electric pump includes a housing adapted to be submerged within a fluid to be pumped having apertures extending therethrough. An electric motor stator is positioned within the housing in communication with the apertures and is adapted to be in contact with the fluid. Inner and outer pump rotors are positioned within the housing in meshed engagement with one another to pump fluid when rotated. A plurality of permanent magnets are fixed for rotation with the outer rotor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.