Molten metal pump particle passage system
US7144217B2 · kind B2 · utility
3Cited by
7References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2001 |
| Grant date | Dec 5, 2006 |
| Priority date | — |
| Expiry date | Oct 26, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D7/065
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A molten metal pump system which includes a particle relief passageway between the vanes on the impeller and the pump base, the particle relief passageway being a predetermined size to allow particles of a predetermined size to pass between the plurality of vanes and the interior walls of the impeller aperture of the pump base. Part or all of the particle relief passageway may, but need not, be as a result of a shoulder on the radially outward end of the plurality of vanes in the inlet side of the impeller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.