Anti-vortex pintle
US4120152A · kind A · utility
7Cited by
7References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 15, 1977 |
| Grant date | Oct 17, 1978 |
| Priority date | — |
| Expiry date | Mar 15, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63H11/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In high velocity pumps such as waterjet pumps, flow leaving the rotor is guided to a smaller discharge diameter by a stator-nozzle combination. To achieve maximum thrust efficiency, the whirl component of velocity must be eliminated at the nozzle exit. Two or more low profile, substantially straight guide vanes are added to the pintle body to destroy any potential whirl component of velocity leaving the stator before being discharged in the exiting stream of water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.