Sealing shroud centrifugal pump
US4648808A · kind A · utility
18Cited by
8References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 9, 1985 |
| Grant date | Mar 10, 1987 |
| Priority date | — |
| Expiry date | Jul 9, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05B2260/4041
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Inside the sealing shroud of the centrifugal pump there is located an inner rotor driven by a drive motor, while an outer rotor which is connected to the pump impeller is located outside of the sealing shroud wall. At least the sealing shroud wall is formed of a material which is electrically non-conductive. The efficiency is improved. Materials not normally used in sealing shrouds, such as ceramics, can be used for the same and this increases the usefulness or fields of application of the pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.