Fuel pumps with reduced contamination effects
US6604905B1 · kind B1 · utility
4Cited by
8References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2000 |
| Grant date | Aug 12, 2003 |
| Priority date | — |
| Expiry date | Jun 20, 2020 |
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 outer ring members have 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.