Apparatus for separating gas with a pump from a medium being pumped
US5167678A · kind A · utility
18Cited by
9References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 15, 1991 |
| Grant date | Dec 1, 1992 |
| Priority date | — |
| Expiry date | Apr 15, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/428
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pump for pumping an air containing medium includes rear vanes (11) on the propeller back plate of the pump and a back ball arranged so that a radially widening space is created between the impeller back plate and the rear wall for guiding the flow of the medium, generated by the combined effect of forces with different directions and different intensities directed at the medium in the spaces between the rear vanes, past gas discharge opening (12) in the rear wall of the pump or for retarding the flow thereby preventing the flow from entering the gas discharge opening (12).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.