Reverse flow cartridge
US5985144A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 3, 1997 |
| Grant date | Nov 16, 1999 |
| Priority date | — |
| Expiry date | Jul 3, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M37/24
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An improved fuel filter cartridge comprises a housing which defines an opening, a filter element enclosed within the housing, and a flow-reversing insert disposed within the housing between the opening and the filter element. The improved filter cartridge is preferably used with a conventional header of the type having a fuel entry port, a fuel exit port, a central first conduit for interiorly defining a first axial fuel passage which is in fluid communication with the entry port of the header. Headers used with the improved filter cartridge also include a second conduit surrounding and cooperating with the first conduit to define a second axial fuel passage therebetween, the second fuel passage being in fluid communication with the exit port of the header, and a base for mounting the filter cartridge thereto. When the filter cartridge is mounted to the base of the header, the insert, filter element and housing cooperate to define a first chamber in communication with the first conduit of the header and to define a second chamber in communication with the second conduit of the header. Fuel delivered to the exit port of the header progressively flows through the second conduit, is g…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.