High velocity prestressed shaft for degasser or pumping application in molten metal
US6106226A · kind A · utility
1Cited by
2References
34Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 22, 1999 |
| Grant date | Aug 22, 2000 |
| Priority date | — |
| Expiry date | Nov 22, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D7/065
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A rotating shaft for pumping or degassing hydrogen from molten metal comprising a motor connected to the upper end of a hollow shaft. An impeller is connected to the lower end of the shaft in the molten metal. The shaft is telescopically housed within a heat resistant shield shaft. The shield is clamped in a state of longitudinal compression to prevent tensile forces from damaging the shield as the impeller is being rotated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.