Fuel drawing device for motor vehicle tank
US6712590B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 27, 2001 |
| Grant date | Mar 30, 2004 |
| Priority date | — |
| Expiry date | Apr 25, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2201/208
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A device for drawing fuel for a motor vehicle tank, the device comprising a drawing pump (100) and a fine filter (210) placed upstream from the pump (100), and wherein: the housing (200) of the filter possesses a degassing orifice (222) in the top portion thereof; the drawing pump (100) also possesses a degassing orifice (130); and the filter housing (200) is fitted with a duct (224) which extends the degassing orifice (222) of the housing (200), opens out into a cavity (220) common to the degassing orifice of the pump (100), and possesses a mouth (227) situated at a height that is equal to or lower than that of the degassing orifice (130) of the pump (100), said duct (224) being shaped so as to constitute a siphon suitable for conveying fuel around the mouth (227) to the inside of the filter housing (200) while the drawing pump (100) is being stopped.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.