In tank fuel pump and reservoir with stand pipe
US5809975A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 1997 |
| Grant date | Sep 22, 1998 |
| Priority date | — |
| Expiry date | Jul 9, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K15/077
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
For a fuel pump mounted within a module in a vehicle fuel tank, a stand pipe is provided in communication at its upper end with a return fuel reservoir and at its lower end with the inlet of the fuel pump to deliver fuel from the return fuel reservoir when the level of fuel in the reservoir rises above the upper end of the stand pipe. The return fuel reservoir has an inlet in communication with a fuel return line through which excess fuel in the fuel system is delivered to the return fuel reservoir. This "weathered" return fuel is delivered to the fuel pump inlet through the stand pipe when the level of fuel in the reservoir is sufficiently high to prefer use of the weathered return fuel by the fuel pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.