Pump and method
US7568896B2 · kind B2 · utility
19Cited by
24References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 30, 2006 |
| Grant date | Aug 4, 2009 |
| Priority date | — |
| Expiry date | Nov 30, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/181
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pump for moving a liquid including a stator and a rotor which rotates to move at least one helical pumping member. The rotor in rotation is radially supported relative to the stator only by a layer of liquid maintained between the rotor and stator by rotor rotation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.