Water pump with housing/impeller to enhance seal performance
US8506238B2 · kind B2 · utility
2Cited by
10References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 16, 2006 |
| Grant date | Aug 13, 2013 |
| Priority date | — |
| Expiry date | Sep 9, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/128
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Systems and methods for improving seal performance in a centrifugal water pump for an internal combustion engine increase static pressure at the seal by incorporating a combination of slots and ribs into a seal cavity of the pump housing that are positioned to convert dynamic fluid pressure into static pressure at the seal while reducing coolant velocity at the seal. Vent holes in the impeller having an appropriate size and location may also be used to increase the static pressure at the seal to enhance seal performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.