Feed pump
US6517310B2 · kind B2 · utility
6Cited by
9References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2001 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | Mar 19, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S415/915
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A feed pump designed as a side-channel or peripheral pump has two rings of guide vanes arranged in an impeller and concentrically enclosing one another. The sides of the guide vanes facing the intended direction of rotation of the impeller are inclined at an angle relative to the axis of rotation of the impeller. The angles of the guide vanes in a radially outer ring of guide vanes are larger than the angles of guide vanes in a radially inner ring of guide vanes. This arrangement allows the impeller to be produced in an injection mold in an especially cost-effective manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.