Low specific speed pump casing construction
US4789301A · kind A · utility
24Cited by
17References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 1986 |
| Grant date | Dec 6, 1988 |
| Priority date | — |
| Expiry date | Mar 27, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49989
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An improved low specific speed pump is disclosed, which provides for greater consistency of pump operating efficiencies obtainable by pumps of any given group of like size pumps. In the present pump, the internal dimensions of the pump chamber and discharge passage are enlarged to provide for a reduction in flow velocities therewithin compared to a conventional pump of a given design flow capacity and a controlled size restrictor is arranged adjacent the pump discharge in order to reduce the resultant increase in flow capacity to such given design value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.