Pump tank divider plate for sump suction sodium pumps
US4029123A · kind A · utility
0Cited by
1References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 1975 |
| Grant date | Jun 14, 1977 |
| Priority date | — |
| Expiry date | Aug 20, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86067
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A circular plate extends across the diameter of "sump suction" pump, with a close clearance between the edge of the plate and the wall of the pump tank. The plate is located above the pump impeller, inlet and outlet flow nozzles but below the sodium free surface and effectively divides the pump tank into two separate chambers. On change of pump speed, the close fitting flow restriction plate limits the rate of flow into or out of the upper chamber, thereby minimizing the rate of level change in the tank and permitting time for the pump cover gas pressure to be varied to maintain an essentially constant level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.