Fuel pumps with reduced contamination effects
US6561765B2 · kind B2 · utility
3Cited by
8References
10Claims
0Family size
Inventors
Key dates
| Filing date | Dec 6, 2001 |
| Grant date | May 13, 2003 |
| Priority date | — |
| Expiry date | Dec 6, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/188
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A vehicle regenerative-type fuel pump which reduces the possible accumulation and effects of contamination relative to impellers with outer ring members. The impellers for the pump have outer ring members with non-uniform configurations (slanted, curved, grooved, etc.) which reduce the affects of contamination which can cause wear and roughing of the outer surface resulting in higher torque and reduced pump efficiencies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.