Centrifugal pumping apparatus
US5116198A · kind A · utility
11Cited by
6References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 7, 1990 |
| Grant date | May 26, 1992 |
| Priority date | — |
| Expiry date | Sep 7, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05B2210/132
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A centrifugal pump for pumping gas containing fiber suspensions includes a centrifugal pumping chamber (54); a centrifugal impeller (60) rotatably mounted within the pumping chamber (54); a liquid ring vacuum pump with a vacuum pump chamber (76) adjacent the centrifugal pumping chamber which includes a radially vaned vacuum pump rotor (96) mounted for rotation therein; an intermediate wall (72) separating the centrifugal pumping chamber from the liquid ring vacuum pump; and a gas inlet (94) and gas outlet (80) within the intermediate wall on the same side of the liquid-ring pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.