Pump device for a gas oil tank of a motor vehicle
US6412517B1 · kind B1 · utility
7Cited by
14References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2000 |
| Grant date | Jul 2, 2002 |
| Priority date | — |
| Expiry date | Jul 18, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86043
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to a pump device for a gas oil tank of a motor vehicle, the device comprising a pump (10) and a filtering strainer (20) placed at the intake of the pump (10), and being characterized by the fact that it includes a valve (100) disposed in a passage (22) formed through the strainer (20) so as to close said passage (22) in normal operation, the valve (100) being adapted to open automatically when the pressure difference between the outside of the strainer (20) and the inside thereof exceeds a threshold because of the strainer (20) becoming clogged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.