Fuel filter
US5084170A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1990 |
| Grant date | Jan 28, 1992 |
| Priority date | — |
| Expiry date | Aug 23, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2201/34
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A fuel filter assembly employs a base which mounts a disposable filter element cartridge. The cartridge includes a dual stage filter system wherein fuel flows axially to a primary filter element for removing particulate matter and coalescing water droplets and axially to a secondary filter stage which functions as a water barrier. The filtered fuel flows axially and exits through an outlet passage in the base. Water may be collected in a sump. The cartridge is retained on the base by a collar which engages against a roll seam structure of the cartridge. In one embodiment the base has a cannister configuration for receiving the cartridge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.