Fuel filter and mounting support of which the outlet is sealed by a valve in case of removal of a filter insert
US11338230B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2017 |
| Grant date | May 24, 2022 |
| Priority date | — |
| Expiry date | Dec 6, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2201/347
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The fuel filter has an outlet for the filtered fuel in a lower base portion of a casing, and a valve associated with the outlet. The filter insert has an internal space in which filtered fuel flows and that accommodates a central member capable of moving the valve to an open position when the insert is in an operational configuration in the casing. The valve is urged, by default, to a sealed position cutting off the flow to the outlet, for example by resilient return arranged between the bottom of the filter and a wall of an interface that guides the lower end of the central member. The central member and the filter insert form a removable unit, and it is therefore possible, typically by way of a cover/removable unit fastening, to automatically obtain the sealed position after opening the top cover.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.