Molten metal pump with filter
US4940384A · kind A · utility
133Cited by
6References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 10, 1989 |
| Grant date | Jul 10, 1990 |
| Priority date | — |
| Expiry date | Feb 10, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/708
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A molten metal pump includes a filter that prevents ingestion of foreign material such as dross from molten metal within which the pump is immersed. The filter is a large structure that is secured to the base of the pump surrounding the pump's inlet. The filter forms a cavity adjacent the pump's inlet. The ratio of the surface area of the filter to the inlet area of the pump is very large; the filter has a low porosity while maintaining a high flow rate for the pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.